Merge fdae3f318e388bbc42701bfc6ba5fd9438185dc3 into d1528ee83d3173f504e5208dd8651dd3baf6a9da

CMakeLists.txt

@@ -979,31 +979,7 @@ if (WITH_CORE)
     else()
       # UNIX
       set (DEFAULT_BIN_SUBDIR     bin)
-
-      # From https://www.cyberciti.biz/faq/how-do-i-find-the-url-for-my-cgi-bin/
-      execute_process(COMMAND lsb_release -a OUTPUT_VARIABLE LSB_RELEASE_A)
-      if(EXISTS "/etc/fedora-release")
-        # in /var/www/cgi-bin
-        set (DEFAULT_CGIBIN_SUBDIR www/cgi-bin)
-
-      elseif (${CMAKE_HOST_SYSTEM_NAME} MATCHES "FreeBSD")
-        # in /usr/local/www/cgi-bin/
-        set (DEFAULT_CGIBIN_SUBDIR www/cgi-bin)
-
-      elseif (${CMAKE_HOST_SYSTEM_NAME} MATCHES "BSD")
-        # in /usr/local/libexec/cgi-bin/
-        set (DEFAULT_CGIBIN_SUBDIR libexec/cgi-bin)
-
-      elseif ("${LSB_RELEASE_A}" MATCHES "Ubuntu" OR "${LSB_RELEASE_A}" MATCHES "Debian" OR "${LSB_RELEASE_A}" MATCHES "Mint")
-        # in /usr/lib/cgi-bin/
-        set (DEFAULT_CGIBIN_SUBDIR lib/cgi-bin)
-
-      else()
-        # others: Red Hat/CentOS/Rocky/Alma Linux
-        # in /var/www/cgi-bin/
-        set (DEFAULT_CGIBIN_SUBDIR www/cgi-bin)
-      endif()
-
+      set (DEFAULT_CGIBIN_SUBDIR  bin)
       set (DEFAULT_LIB_SUBDIR     lib${LIB_SUFFIX})
       set (DEFAULT_DATA_SUBDIR    share/qgis)
       set (DEFAULT_LIBEXEC_SUBDIR lib${LIB_SUFFIX}/qgis)

python/3d/auto_generated/lights/qgsdirectionallightsettings.sip.in

@@ -62,7 +62,7 @@ Returns intensity of the light
 Sets intensity of the light
 %End
 
-    bool operator==( const QgsDirectionalLightSettings &other ) const;
+    bool operator==( const QgsDirectionalLightSettings &other );
 
 };
 

python/3d/auto_generated/lights/qgspointlightsettings.sip.in

@@ -95,7 +95,7 @@ Returns quadratic attenuation (A_2)
 Sets quadratic attenuation (A_2)
 %End
 
-    bool operator==( const QgsPointLightSettings &other ) const;
+    bool operator==( const QgsPointLightSettings &other );
 
 };
 

python/PyQt6/3d/auto_generated/lights/qgsdirectionallightsettings.sip.in

@@ -62,7 +62,7 @@ Returns intensity of the light
 Sets intensity of the light
 %End
 
-    bool operator==( const QgsDirectionalLightSettings &other ) const;
+    bool operator==( const QgsDirectionalLightSettings &other );
 
 };
 

python/PyQt6/3d/auto_generated/lights/qgspointlightsettings.sip.in

@@ -95,7 +95,7 @@ Returns quadratic attenuation (A_2)
 Sets quadratic attenuation (A_2)
 %End
 
-    bool operator==( const QgsPointLightSettings &other ) const;
+    bool operator==( const QgsPointLightSettings &other );
 
 };
 

python/pyplugin_installer/installer_data.py

@@ -659,9 +659,6 @@ class Repositories(QObject):
                         .strip()
                     )
                     if not qgisMaximumVersion:
-                        if qgisMinimumVersion[0] == "3" and supports_qt6:
-                            qgisMaximumVersion = "4.99"
-                        else:
                         qgisMaximumVersion = qgisMinimumVersion[0] + ".99"
                     # if compatible, add the plugin to the list
                     if not pluginNodes.item(i).firstChildElement(
@@ -848,9 +845,6 @@ class Plugins(QObject):
                 qgisMinimumVersion = "0"
             qgisMaximumVersion = pluginMetadata("qgisMaximumVersion").strip()
             if not qgisMaximumVersion:
-                if qgisMinimumVersion[0] == "3" and supports_qt6:
-                    qgisMaximumVersion = "4.99"
-                else:
                 qgisMaximumVersion = qgisMinimumVersion[0] + ".99"
             # if compatible, add the plugin to the list
             if not isCompatible(

src/3d/lights/qgsdirectionallightsettings.cpp

@@ -64,7 +64,7 @@ void QgsDirectionalLightSettings::readXml( const QDomElement &elem, const QgsRea
   mIntensity = elem.attribute( QStringLiteral( "intensity" ) ).toFloat();
 }
 
-bool QgsDirectionalLightSettings::operator==( const QgsDirectionalLightSettings &other ) const
+bool QgsDirectionalLightSettings::operator==( const QgsDirectionalLightSettings &other )
 {
   return mDirection == other.mDirection && mColor == other.mColor && mIntensity == other.mIntensity;
 }

src/3d/lights/qgsdirectionallightsettings.h

@@ -58,7 +58,7 @@ class _3D_EXPORT QgsDirectionalLightSettings : public QgsLightSource
     void setIntensity( float intensity ) { mIntensity = intensity; }
 
     // TODO c++20 - replace with = default
-    bool operator==( const QgsDirectionalLightSettings &other ) const;
+    bool operator==( const QgsDirectionalLightSettings &other );
 
   private:
     QgsVector3D mDirection { -0.32, 0.27, -0.91 };

src/3d/lights/qgspointlightsettings.cpp

@@ -107,7 +107,7 @@ void QgsPointLightSettings::readXml( const QDomElement &elem, const QgsReadWrite
   mQuadraticAttenuation = elem.attribute( QStringLiteral( "attenuation-2" ) ).toDouble();
 }
 
-bool QgsPointLightSettings::operator==( const QgsPointLightSettings &other ) const
+bool QgsPointLightSettings::operator==( const QgsPointLightSettings &other )
 {
   return mPosition == other.mPosition && mColor == other.mColor && mIntensity == other.mIntensity && mConstantAttenuation == other.mConstantAttenuation && mLinearAttenuation == other.mLinearAttenuation && mQuadraticAttenuation == other.mQuadraticAttenuation;
 }

src/3d/lights/qgspointlightsettings.h

@@ -79,7 +79,7 @@ class _3D_EXPORT QgsPointLightSettings : public QgsLightSource
     void setQuadraticAttenuation( float value ) { mQuadraticAttenuation = value; }
 
     // TODO c++20 - replace with = default
-    bool operator==( const QgsPointLightSettings &other ) const;
+    bool operator==( const QgsPointLightSettings &other );
 
   private:
     QgsVector3D mPosition { 0, 0, 1000 };

src/3d/qgs3dmapcanvas.cpp

@@ -66,7 +66,7 @@ Qgs3DMapCanvas::Qgs3DMapCanvas()
   const QgsSettings setting;
   mEngine = new QgsWindow3DEngine( this );
 
-  connect( mEngine, &QgsAbstract3DEngine::imageCaptured, this, [this]( const QImage &image ) {
+  connect( mEngine, &QgsAbstract3DEngine::imageCaptured, this, [=]( const QImage &image ) {
     if ( image.save( mCaptureFileName, mCaptureFileFormat.toLocal8Bit().data() ) )
     {
       emit savedAsImage( mCaptureFileName );
@@ -169,7 +169,7 @@ void Qgs3DMapCanvas::setMapSettings( Qgs3DMapSettings *mapSettings )
 
   resetView();
 
-  connect( cameraController(), &QgsCameraController::setCursorPosition, this, [this]( QPoint point ) {
+  connect( cameraController(), &QgsCameraController::setCursorPosition, this, [=]( QPoint point ) {
     QCursor::setPos( mapToGlobal( point ) );
   } );
   connect( cameraController(), &QgsCameraController::cameraMovementSpeedChanged, mMapSettings, &Qgs3DMapSettings::setCameraMovementSpeed );
@@ -216,7 +216,7 @@ void Qgs3DMapCanvas::saveAsImage( const QString &fileName, const QString &fileFo
   Qt3DLogic::QFrameAction *screenCaptureFrameAction = new Qt3DLogic::QFrameAction;
   mScene->addComponent( screenCaptureFrameAction );
   // Wait to have the render capture enabled in the next frame
-  connect( screenCaptureFrameAction, &Qt3DLogic::QFrameAction::triggered, this, [this, screenCaptureFrameAction]( float ) {
+  connect( screenCaptureFrameAction, &Qt3DLogic::QFrameAction::triggered, this, [=]( float ) {
     mEngine->requestCaptureImage();
     mScene->removeComponent( screenCaptureFrameAction );
     screenCaptureFrameAction->deleteLater();
@@ -232,7 +232,7 @@ void Qgs3DMapCanvas::captureDepthBuffer()
   Qt3DLogic::QFrameAction *screenCaptureFrameAction = new Qt3DLogic::QFrameAction;
   mScene->addComponent( screenCaptureFrameAction );
   // Wait to have the render capture enabled in the next frame
-  connect( screenCaptureFrameAction, &Qt3DLogic::QFrameAction::triggered, this, [this, screenCaptureFrameAction]( float ) {
+  connect( screenCaptureFrameAction, &Qt3DLogic::QFrameAction::triggered, this, [=]( float ) {
     mEngine->requestDepthBufferCapture();
     mScene->removeComponent( screenCaptureFrameAction );
     screenCaptureFrameAction->deleteLater();

src/3d/qgs3dmapscene.cpp

@@ -159,7 +159,7 @@ Qgs3DMapScene::Qgs3DMapScene( Qgs3DMapSettings &map, QgsAbstract3DEngine *engine
 
   connect( &map, &Qgs3DMapSettings::originChanged, this, &Qgs3DMapScene::onOriginChanged );
 
-  connect( QgsApplication::sourceCache(), &QgsSourceCache::remoteSourceFetched, this, [this]( const QString &url ) {
+  connect( QgsApplication::sourceCache(), &QgsSourceCache::remoteSourceFetched, this, [=]( const QString &url ) {
     const QList<QgsMapLayer *> modelVectorLayers = mModelVectorLayers;
     for ( QgsMapLayer *layer : modelVectorLayers )
     {

src/3d/qgsabstract3dengine.cpp

@@ -33,7 +33,7 @@ void QgsAbstract3DEngine::requestCaptureImage()
   mFrameGraph->setRenderCaptureEnabled( true );
   captureReply = mFrameGraph->renderCapture()->requestCapture();
 
-  connect( captureReply, &Qt3DRender::QRenderCaptureReply::completed, this, [this, captureReply] {
+  connect( captureReply, &Qt3DRender::QRenderCaptureReply::completed, this, [=] {
     emit imageCaptured( captureReply->image() );
     captureReply->deleteLater();
     mFrameGraph->setRenderCaptureEnabled( false );
@@ -45,7 +45,7 @@ void QgsAbstract3DEngine::requestDepthBufferCapture()
   Qt3DRender::QRenderCaptureReply *captureReply;
   captureReply = mFrameGraph->depthRenderCapture()->requestCapture();
 
-  connect( captureReply, &Qt3DRender::QRenderCaptureReply::completed, this, [this, captureReply] {
+  connect( captureReply, &Qt3DRender::QRenderCaptureReply::completed, this, [=] {
     emit depthBufferCaptured( captureReply->image() );
     captureReply->deleteLater();
   } );

src/3d/qgscameracontroller.cpp

@@ -522,8 +522,8 @@ void QgsCameraController::onPositionChangedTerrainNavigation( Qt3DInput::QMouseE
   const int dx = mouse->x() - mMousePos.x();
   const int dy = mouse->y() - mMousePos.y();
 
-  const bool hasShift = ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ShiftModifier );
-  const bool hasCtrl = ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ControlModifier );
+  const bool hasShift = ( mouse->modifiers() & Qt::ShiftModifier );
+  const bool hasCtrl = ( mouse->modifiers() & Qt::ControlModifier );
   const bool hasLeftButton = ( mouse->buttons() & Qt::LeftButton );
   const bool hasMiddleButton = ( mouse->buttons() & Qt::MiddleButton );
   const bool hasRightButton = ( mouse->buttons() & Qt::RightButton );
@@ -676,8 +676,8 @@ void QgsCameraController::onPositionChangedTerrainNavigation( Qt3DInput::QMouseE
 
 void QgsCameraController::onPositionChangedGlobeTerrainNavigation( Qt3DInput::QMouseEvent *mouse )
 {
-  const bool hasShift = ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ShiftModifier );
-  const bool hasCtrl = ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ControlModifier );
+  const bool hasShift = ( mouse->modifiers() & Qt::ShiftModifier );
+  const bool hasCtrl = ( mouse->modifiers() & Qt::ControlModifier );
   const bool hasLeftButton = ( mouse->buttons() & Qt::LeftButton );
   const bool hasMiddleButton = ( mouse->buttons() & Qt::MiddleButton );
 
@@ -815,7 +815,7 @@ void QgsCameraController::onWheel( Qt3DInput::QWheelEvent *wheel )
   {
     case Qgis::NavigationMode::Walk:
     {
-      const float scaling = ( ( wheel->modifiers() & Qt3DInput::QWheelEvent::Modifiers::ControlModifier ) != 0 ? 0.1f : 1.0f ) / 1000.f;
+      const float scaling = ( ( wheel->modifiers() & Qt::ControlModifier ) != 0 ? 0.1f : 1.0f ) / 1000.f;
       setCameraMovementSpeed( mCameraMovementSpeed + mCameraMovementSpeed * scaling * wheel->angleDelta().y() );
       break;
     }
@@ -824,7 +824,7 @@ void QgsCameraController::onWheel( Qt3DInput::QWheelEvent *wheel )
     {
       // Scale our variable to roughly "number of normal steps", with Ctrl
       // increasing granularity 10x
-      const double scaling = ( 1.0 / 120.0 ) * ( ( wheel->modifiers() & Qt3DInput::QWheelEvent::Modifiers::ControlModifier ) != 0 ? 0.1 : 1.0 );
+      const double scaling = ( 1.0 / 120.0 ) * ( ( wheel->modifiers() & Qt::ControlModifier ) != 0 ? 0.1 : 1.0 );
 
       // Apparently angleDelta needs to be accumulated
       // see: https://doc.qt.io/qt-5/qwheelevent.html#angleDelta
@@ -861,7 +861,7 @@ void QgsCameraController::onMousePressed( Qt3DInput::QMouseEvent *mouse )
 
   mKeyboardHandler->setFocus( true );
 
-  if ( mouse->button() == Qt3DInput::QMouseEvent::MiddleButton || ( ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ShiftModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ) || ( ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ControlModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ) )
+  if ( mouse->button() == Qt3DInput::QMouseEvent::MiddleButton || ( ( mouse->modifiers() & Qt::ShiftModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ) || ( ( mouse->modifiers() & Qt::ControlModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ) )
   {
     mMousePos = QPoint( mouse->x(), mouse->y() );
 
@@ -869,7 +869,7 @@ void QgsCameraController::onMousePressed( Qt3DInput::QMouseEvent *mouse )
       mIgnoreNextMouseMove = true;
 
     const MouseOperation operation {
-      ( mouse->modifiers() & Qt3DInput::QMouseEvent::Modifiers::ControlModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ? MouseOperation::RotationCamera : MouseOperation::RotationCenter
+      ( mouse->modifiers() & Qt::ControlModifier ) != 0 && mouse->button() == Qt3DInput::QMouseEvent::LeftButton ? MouseOperation::RotationCamera : MouseOperation::RotationCenter
     };
     setMouseParameters( operation, mMousePos );
   }

src/3d/qgsglobechunkedentity.cpp

@@ -278,7 +278,7 @@ class QgsGlobeChunkLoader : public QgsChunkLoader
       , mTextureGenerator( textureGenerator )
       , mGlobeCrsToLatLon( globeCrsToLatLon )
     {
-      connect( mTextureGenerator, &QgsTerrainTextureGenerator::tileReady, this, [this]( int job, const QImage &img ) {
+      connect( mTextureGenerator, &QgsTerrainTextureGenerator::tileReady, this, [=]( int job, const QImage &img ) {
         if ( job == mJobId )
         {
           mTexture = img;
@@ -436,7 +436,7 @@ class QgsGlobeMapUpdateJob : public QgsChunkQueueJob
       QgsTerrainTextureImage *terrainTexImage = qobject_cast<QgsTerrainTextureImage *>( texImages[0] );
       Q_ASSERT( terrainTexImage );
 
-      connect( textureGenerator, &QgsTerrainTextureGenerator::tileReady, this, [this, terrainTexImage]( int jobId, const QImage &image ) {
+      connect( textureGenerator, &QgsTerrainTextureGenerator::tileReady, this, [=]( int jobId, const QImage &image ) {
         if ( mJobId == jobId )
         {
           terrainTexImage->setImage( image );
@@ -487,7 +487,7 @@ class QgsGlobeMapUpdateJobFactory : public QgsChunkQueueJobFactory
 QgsGlobeEntity::QgsGlobeEntity( Qgs3DMapSettings *mapSettings )
   : QgsChunkedEntity( mapSettings, mapSettings->terrainSettings()->maximumScreenError(), new QgsGlobeChunkLoaderFactory( mapSettings ), true )
 {
-  connect( mapSettings, &Qgs3DMapSettings::showTerrainBoundingBoxesChanged, this, [this, mapSettings] {
+  connect( mapSettings, &Qgs3DMapSettings::showTerrainBoundingBoxesChanged, this, [=] {
     setShowBoundingBoxes( mapSettings->showTerrainBoundingBoxes() );
   } );
   connect( mapSettings, &Qgs3DMapSettings::showTerrainTilesInfoChanged, this, &QgsGlobeEntity::invalidateMapImages );

src/analysis/georeferencing/qgsvectorwarper.cpp

@@ -135,7 +135,7 @@ bool QgsVectorWarperTask::run()
 
   QgsVectorWarper warper( mMethod, mPoints, mDestinationCrs );
 
-  connect( mFeedback.get(), &QgsFeedback::processedCountChanged, this, [this]( long long count ) {
+  connect( mFeedback.get(), &QgsFeedback::processedCountChanged, this, [=]( long long count ) {
     const double newProgress = 100.0 * count / mFeatureCount;
     // avoid flooding with too many events
     if ( static_cast<int>( newProgress * 10 ) != static_cast<int>( mLastProgress * 10 ) )

src/analysis/processing/pdal/qgsalgorithmpdalinformation.cpp

@@ -73,10 +73,10 @@ QVariantMap QgsPdalInformationAlgorithm::processAlgorithm( const QVariantMap &pa
   QStringList commandOutput;
 
   QgsBlockingProcess wrenchProcess( wrenchPath, processArgs );
-  wrenchProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  wrenchProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba.trimmed() );
   } );
-  wrenchProcess.setStdOutHandler( [feedback, &commandOutput]( const QByteArray &ba ) {
+  wrenchProcess.setStdOutHandler( [=, &commandOutput]( const QByteArray &ba ) {
     feedback->pushConsoleInfo( ba.trimmed() );
     commandOutput << ba;
   } );

src/analysis/processing/pdal/qgspdalalgorithmbase.cpp

@@ -189,10 +189,10 @@ QVariantMap QgsPdalAlgorithmBase::processAlgorithm( const QVariantMap &parameter
   QString buffer;
 
   QgsBlockingProcess wrenchProcess( wrenchPath, processArgs );
-  wrenchProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  wrenchProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba.trimmed() );
   } );
-  wrenchProcess.setStdOutHandler( [feedback, &progress, &buffer]( const QByteArray &ba ) {
+  wrenchProcess.setStdOutHandler( [=, &progress, &buffer]( const QByteArray &ba ) {
     QString data( ba );
 
     QRegularExpression re( "\\.*(\\d+)?\\.*$" );

src/analysis/processing/qgsalgorithmdrape.cpp

@@ -137,7 +137,7 @@ QgsFeatureList QgsDrapeAlgorithmBase::processFeature( const QgsFeature &feature,
     // a pointless iteration over all vertices
     if ( !mRasterExtent.isNull() && geometry.boundingBoxIntersects( mRasterExtent ) )
     {
-      geometry.transformVertices( [this, nodata, scale, offset, feedback, &f]( const QgsPoint &p ) -> QgsPoint {
+      geometry.transformVertices( [=]( const QgsPoint &p ) -> QgsPoint {
         QgsPointXY t;
         double val = nodata;
         try

src/analysis/processing/qgsalgorithmgpsbabeltools.cpp

@@ -111,10 +111,10 @@ QVariantMap QgsConvertGpxFeatureTypeAlgorithm::processAlgorithm( const QVariantM
   feedback->pushCommandInfo( QObject::tr( "Conversion command: " ) + babelPath + ' ' + logArgs.join( ' ' ) );
 
   QgsBlockingProcess babelProcess( babelPath, processArgs );
-  babelProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba );
   } );
-  babelProcess.setStdOutHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdOutHandler( [=]( const QByteArray &ba ) {
     feedback->pushDebugInfo( ba );
   } );
 
@@ -355,10 +355,10 @@ QVariantMap QgsConvertGpsDataAlgorithm::processAlgorithm( const QVariantMap &par
   feedback->pushCommandInfo( QObject::tr( "Conversion command: " ) + logCommand.join( ' ' ) );
 
   QgsBlockingProcess babelProcess( processCommand.value( 0 ), processCommand.mid( 1 ) );
-  babelProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba );
   } );
-  babelProcess.setStdOutHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdOutHandler( [=]( const QByteArray &ba ) {
     feedback->pushDebugInfo( ba );
   } );
 
@@ -576,10 +576,10 @@ QVariantMap QgsDownloadGpsDataAlgorithm::processAlgorithm( const QVariantMap &pa
   feedback->pushCommandInfo( QObject::tr( "Download command: " ) + logCommand.join( ' ' ) );
 
   QgsBlockingProcess babelProcess( processCommand.value( 0 ), processCommand.mid( 1 ) );
-  babelProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba );
   } );
-  babelProcess.setStdOutHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdOutHandler( [=]( const QByteArray &ba ) {
     feedback->pushDebugInfo( ba );
   } );
 
@@ -796,10 +796,10 @@ QVariantMap QgsUploadGpsDataAlgorithm::processAlgorithm( const QVariantMap &para
   feedback->pushCommandInfo( QObject::tr( "Upload command: " ) + logCommand.join( ' ' ) );
 
   QgsBlockingProcess babelProcess( processCommand.value( 0 ), processCommand.mid( 1 ) );
-  babelProcess.setStdErrHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdErrHandler( [=]( const QByteArray &ba ) {
     feedback->reportError( ba );
   } );
-  babelProcess.setStdOutHandler( [feedback]( const QByteArray &ba ) {
+  babelProcess.setStdOutHandler( [=]( const QByteArray &ba ) {
     feedback->pushDebugInfo( ba );
   } );
 

src/analysis/processing/qgsalgorithmpackage.cpp

@@ -142,7 +142,7 @@ QVariantMap QgsPackageAlgorithm::processAlgorithm( const QVariantMap &parameters
       int recursionGuard { 0 };
 
       // This function recursively finds referenced layers
-      const auto findReferenced = [this, &project, &feedback, &recursionGuard, &layers]( const QgsVectorLayer *vLayer, bool onlySaveSelected, auto &&findReferenced ) -> void {
+      const auto findReferenced = [=, &project, &feedback, &recursionGuard, &layers]( const QgsVectorLayer *vLayer, bool onlySaveSelected, auto &&findReferenced ) -> void {
         const QgsVectorLayer *originalLayer { qobject_cast<QgsVectorLayer *>( project->mapLayer( mClonedLayerIds.value( vLayer->id(), vLayer->id() ) ) ) };
         Q_ASSERT( originalLayer );
         const QList<QgsRelation> relations { project->relationManager()->referencingRelations( originalLayer ) };
@@ -208,7 +208,7 @@ QVariantMap QgsPackageAlgorithm::processAlgorithm( const QVariantMap &parameters
       };
 
       // This function recursively finds referencing layers
-      const auto findReferencing = [this, &project, &feedback, &recursionGuard, &layers]( const QgsVectorLayer *vLayer, bool onlySaveSelected, auto &&findReferencing ) -> void {
+      const auto findReferencing = [=, &project, &feedback, &recursionGuard, &layers]( const QgsVectorLayer *vLayer, bool onlySaveSelected, auto &&findReferencing ) -> void {
         const QgsVectorLayer *originalLayer { qobject_cast<QgsVectorLayer *>( project->mapLayer( mClonedLayerIds.value( vLayer->id(), vLayer->id() ) ) ) };
         Q_ASSERT( originalLayer );
         const QList<QgsRelation> relations { project->relationManager()->referencedRelations( originalLayer ) };

src/analysis/processing/qgsalgorithmrasterlogicalop.cpp

@@ -179,7 +179,7 @@ QVariantMap QgsRasterBooleanLogicAlgorithmBase::processAlgorithm( const QVariant
 
 QgsRasterLogicalOrAlgorithm::QgsRasterLogicalOrAlgorithm()
 {
-  mExtractValFunc = []( const std::vector<std::unique_ptr<QgsRasterBlock>> &inputs, bool &res, bool &resIsNoData, int row, int column, bool treatNoDataAsFalse ) {
+  mExtractValFunc = [=]( const std::vector<std::unique_ptr<QgsRasterBlock>> &inputs, bool &res, bool &resIsNoData, int row, int column, bool treatNoDataAsFalse ) {
     res = false;
     resIsNoData = false;
     bool isNoData = false;
@@ -252,7 +252,7 @@ QgsRasterLogicalOrAlgorithm *QgsRasterLogicalOrAlgorithm::createInstance() const
 
 QgsRasterLogicalAndAlgorithm::QgsRasterLogicalAndAlgorithm()
 {
-  mExtractValFunc = []( const std::vector<std::unique_ptr<QgsRasterBlock>> &inputs, bool &res, bool &resIsNoData, int row, int column, bool treatNoDataAsFalse ) {
+  mExtractValFunc = [=]( const std::vector<std::unique_ptr<QgsRasterBlock>> &inputs, bool &res, bool &resIsNoData, int row, int column, bool treatNoDataAsFalse ) {
     res = true;
     resIsNoData = false;
     bool isNoData = false;

src/app/3d/qgs3danimationexportdialog.cpp

@@ -40,7 +40,7 @@ Qgs3DAnimationExportDialog::Qgs3DAnimationExportDialog()
   QValidator *validator = new QRegularExpressionValidator( rx, this );
   mTemplateLineEdit->setValidator( validator );
 
-  connect( mTemplateLineEdit, &QLineEdit::textChanged, this, [this] {
+  connect( mTemplateLineEdit, &QLineEdit::textChanged, this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "Export3DAnimation/fileNameTemplate" ), mTemplateLineEdit->text() );
   } );
@@ -51,30 +51,30 @@ Qgs3DAnimationExportDialog::Qgs3DAnimationExportDialog()
   mOutputDirFileWidget->setDefaultRoot( settings.value( QStringLiteral( "Export3DAnimation/lastDir" ), QString(), QgsSettings::App ).toString() );
   mOutputDirFileWidget->setFilePath( settings.value( QStringLiteral( "Export3DAnimation/lastDir" ), QString(), QgsSettings::App ).toString() );
 
-  connect( mOutputDirFileWidget, &QgsFileWidget::fileChanged, this, [this] {
+  connect( mOutputDirFileWidget, &QgsFileWidget::fileChanged, this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "Export3DAnimation/lastDir" ), mOutputDirFileWidget->filePath(), QgsSettings::App );
   } );
 
   mFpsSpinBox->setValue( settings.value( QStringLiteral( "Export3DAnimation/fps" ), 30 ).toInt() );
-  connect( mFpsSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [this] {
+  connect( mFpsSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "Export3DAnimation/fps" ), mFpsSpinBox->value() );
   } );
 
   mWidthSpinBox->setValue( settings.value( QStringLiteral( "Export3DAnimation/width" ), 800 ).toInt() );
-  connect( mWidthSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [this] {
+  connect( mWidthSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "Export3DAnimation/width" ), mWidthSpinBox->value() );
   } );
 
   mHeightSpinBox->setValue( settings.value( QStringLiteral( "Export3DAnimation/height" ), 600 ).toInt() );
-  connect( mHeightSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [this] {
+  connect( mHeightSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QgsSpinBox::valueChanged ), this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "Export3DAnimation/height" ), mHeightSpinBox->value() );
   } );
 
-  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "map_views/3d_map_view.html#create-animation" ) );
   } );
 

src/app/3d/qgs3ddebugwidget.cpp

@@ -75,29 +75,29 @@ void Qgs3DDebugWidget::setMapSettings( Qgs3DMapSettings *mapSettings )
   whileBlocking( chkStopUpdates )->setChecked( mMap->stopUpdates() );
   whileBlocking( chkStopOriginShifts )->setChecked( !m3DMapCanvas->scene()->hasSceneOriginShiftEnabled() );
   whileBlocking( chkDebugOverlay )->setChecked( mMap->isDebugOverlayEnabled() );
-  connect( chkShowTileInfo, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setShowTerrainTilesInfo( enabled ); } );
-  connect( chkShowBoundingBoxes, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setShowTerrainBoundingBoxes( enabled ); } );
-  connect( chkShowCameraViewCenter, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setShowCameraViewCenter( enabled ); } );
-  connect( chkShowCameraRotationCenter, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setShowCameraRotationCenter( enabled ); } );
-  connect( chkShowLightSourceOrigins, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setShowLightSourceOrigins( enabled ); } );
-  connect( chkStopUpdates, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setStopUpdates( enabled ); } );
-  connect( chkStopOriginShifts, &QCheckBox::toggled, this, [this]( const bool enabled ) {
+  connect( chkShowTileInfo, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setShowTerrainTilesInfo( enabled ); } );
+  connect( chkShowBoundingBoxes, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setShowTerrainBoundingBoxes( enabled ); } );
+  connect( chkShowCameraViewCenter, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setShowCameraViewCenter( enabled ); } );
+  connect( chkShowCameraRotationCenter, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setShowCameraRotationCenter( enabled ); } );
+  connect( chkShowLightSourceOrigins, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setShowLightSourceOrigins( enabled ); } );
+  connect( chkStopUpdates, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setStopUpdates( enabled ); } );
+  connect( chkStopOriginShifts, &QCheckBox::toggled, this, [=]( const bool enabled ) {
     m3DMapCanvas->scene()->setSceneOriginShiftEnabled( !enabled );
   } );
-  connect( chkDebugOverlay, &QCheckBox::toggled, this, [this]( const bool enabled ) { mMap->setIsDebugOverlayEnabled( enabled ); } );
+  connect( chkDebugOverlay, &QCheckBox::toggled, this, [=]( const bool enabled ) { mMap->setIsDebugOverlayEnabled( enabled ); } );
 
   // set up the shadow map block
   whileBlocking( mDebugShadowMapGroupBox )->setChecked( mMap->debugShadowMapEnabled() );
   whileBlocking( mDebugShadowMapCornerComboBox )->setCurrentIndex( mMap->debugShadowMapCorner() );
   whileBlocking( mDebugShadowMapSizeSpinBox )->setValue( mMap->debugShadowMapSize() );
   // Do not display the shadow debug map if the shadow effect is not enabled.
-  connect( mDebugShadowMapGroupBox, &QGroupBox::toggled, this, [this]( const bool enabled ) {
+  connect( mDebugShadowMapGroupBox, &QGroupBox::toggled, this, [=]( const bool enabled ) {
     mMap->setDebugShadowMapSettings( enabled && mMap->shadowSettings().renderShadows(), static_cast<Qt::Corner>( mDebugShadowMapCornerComboBox->currentIndex() ), mDebugShadowMapSizeSpinBox->value() );
   } );
-  connect( mDebugShadowMapCornerComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( const int index ) {
+  connect( mDebugShadowMapCornerComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( const int index ) {
     mMap->setDebugShadowMapSettings( mDebugShadowMapGroupBox->isChecked() && mMap->shadowSettings().renderShadows(), static_cast<Qt::Corner>( index ), mDebugShadowMapSizeSpinBox->value() );
   } );
-  connect( mDebugShadowMapSizeSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mDebugShadowMapSizeSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     mMap->setDebugShadowMapSettings( mDebugShadowMapGroupBox->isChecked() && mMap->shadowSettings().renderShadows(), static_cast<Qt::Corner>( mDebugShadowMapCornerComboBox->currentIndex() ), value );
   } );
 
@@ -105,39 +105,39 @@ void Qgs3DDebugWidget::setMapSettings( Qgs3DMapSettings *mapSettings )
   whileBlocking( mDebugDepthMapGroupBox )->setChecked( mMap->debugDepthMapEnabled() );
   whileBlocking( mDebugDepthMapCornerComboBox )->setCurrentIndex( mMap->debugDepthMapCorner() );
   whileBlocking( mDebugDepthMapSizeSpinBox )->setValue( mMap->debugDepthMapSize() );
-  connect( mDebugDepthMapGroupBox, &QGroupBox::toggled, this, [this]( const bool enabled ) {
+  connect( mDebugDepthMapGroupBox, &QGroupBox::toggled, this, [=]( const bool enabled ) {
     mMap->setDebugDepthMapSettings( enabled, static_cast<Qt::Corner>( mDebugDepthMapCornerComboBox->currentIndex() ), mDebugDepthMapSizeSpinBox->value() );
   } );
-  connect( mDebugDepthMapCornerComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( const int index ) {
+  connect( mDebugDepthMapCornerComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( const int index ) {
     mMap->setDebugDepthMapSettings( mDebugDepthMapGroupBox->isChecked(), static_cast<Qt::Corner>( index ), mDebugDepthMapSizeSpinBox->value() );
   } );
-  connect( mDebugDepthMapSizeSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mDebugDepthMapSizeSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     mMap->setDebugDepthMapSettings( mDebugDepthMapGroupBox->isChecked(), static_cast<Qt::Corner>( mDebugDepthMapCornerComboBox->currentIndex() ), value );
   } );
 
   // connect the camera info spin boxes with changing functions
-  connect( mNearPlane, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mNearPlane, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     m3DMapCanvas->cameraController()->camera()->setNearPlane( static_cast<float>( value ) );
   } );
-  connect( mFarPlane, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mFarPlane, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     m3DMapCanvas->cameraController()->camera()->setFarPlane( static_cast<float>( value ) );
   } );
-  connect( mCameraX, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mCameraX, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QVector3D newPosition = m3DMapCanvas->cameraController()->camera()->position();
     newPosition.setX( static_cast<float>( value ) );
     m3DMapCanvas->cameraController()->camera()->setPosition( newPosition );
   } );
-  connect( mCameraY, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mCameraY, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QVector3D newPosition = m3DMapCanvas->cameraController()->camera()->position();
     newPosition.setY( static_cast<float>( value ) );
     m3DMapCanvas->cameraController()->camera()->setPosition( newPosition );
   } );
-  connect( mCameraZ, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mCameraZ, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QVector3D newPosition = m3DMapCanvas->cameraController()->camera()->position();
     newPosition.setZ( static_cast<float>( value ) );
     m3DMapCanvas->cameraController()->camera()->setPosition( newPosition );
   } );
-  connect( mLookingX, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mLookingX, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QgsVector3D newLookingAt = m3DMapCanvas->cameraController()->lookingAtPoint();
     newLookingAt.setX( value );
     m3DMapCanvas->cameraController()->setLookingAtPoint(
@@ -147,7 +147,7 @@ void Qgs3DDebugWidget::setMapSettings( Qgs3DMapSettings *mapSettings )
       m3DMapCanvas->cameraController()->yaw()
     );
   } );
-  connect( mLookingY, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mLookingY, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QgsVector3D newLookingAt = m3DMapCanvas->cameraController()->lookingAtPoint();
     newLookingAt.setY( value );
     m3DMapCanvas->cameraController()->setLookingAtPoint(
@@ -157,7 +157,7 @@ void Qgs3DDebugWidget::setMapSettings( Qgs3DMapSettings *mapSettings )
       m3DMapCanvas->cameraController()->yaw()
     );
   } );
-  connect( mLookingZ, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( const double value ) {
+  connect( mLookingZ, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( const double value ) {
     QgsVector3D newLookingAt = m3DMapCanvas->cameraController()->lookingAtPoint();
     newLookingAt.setZ( value );
     m3DMapCanvas->cameraController()->setLookingAtPoint(

src/app/3d/qgs3dmapcanvaswidget.cpp

@@ -230,7 +230,7 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mActionSync2DNavTo3D = new QAction( tr( "2D Map View Follows 3D Camera" ), this );
   mActionSync2DNavTo3D->setCheckable( true );
-  connect( mActionSync2DNavTo3D, &QAction::triggered, this, [this]( bool enabled ) {
+  connect( mActionSync2DNavTo3D, &QAction::triggered, this, [=]( bool enabled ) {
     Qgis::ViewSyncModeFlags syncMode = mCanvas->mapSettings()->viewSyncMode();
     syncMode.setFlag( Qgis::ViewSyncModeFlag::Sync2DTo3D, enabled );
     mCanvas->mapSettings()->setViewSyncMode( syncMode );
@@ -239,7 +239,7 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mActionSync3DNavTo2D = new QAction( tr( "3D Camera Follows 2D Map View" ), this );
   mActionSync3DNavTo2D->setCheckable( true );
-  connect( mActionSync3DNavTo2D, &QAction::triggered, this, [this]( bool enabled ) {
+  connect( mActionSync3DNavTo2D, &QAction::triggered, this, [=]( bool enabled ) {
     Qgis::ViewSyncModeFlags syncMode = mCanvas->mapSettings()->viewSyncMode();
     syncMode.setFlag( Qgis::ViewSyncModeFlag::Sync3DTo2D, enabled );
     mCanvas->mapSettings()->setViewSyncMode( syncMode );
@@ -248,14 +248,14 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mShowFrustumPolygon = new QAction( tr( "Show Visible Camera Area in 2D Map View" ), this );
   mShowFrustumPolygon->setCheckable( true );
-  connect( mShowFrustumPolygon, &QAction::triggered, this, [this]( bool enabled ) {
+  connect( mShowFrustumPolygon, &QAction::triggered, this, [=]( bool enabled ) {
     mCanvas->mapSettings()->setViewFrustumVisualizationEnabled( enabled );
   } );
   mCameraMenu->addAction( mShowFrustumPolygon );
 
   mActionSetSceneExtent = mCameraMenu->addAction( QgsApplication::getThemeIcon( QStringLiteral( "extents.svg" ) ), tr( "Set 3D Scene Extent on 2D Map View" ), this, &Qgs3DMapCanvasWidget::setSceneExtentOn2DCanvas );
   mActionSetSceneExtent->setCheckable( true );
-  auto createShortcuts = [this]( const QString &objectName, void ( Qgs3DMapCanvasWidget::*slot )() ) {
+  auto createShortcuts = [=]( const QString &objectName, void ( Qgs3DMapCanvasWidget::*slot )() ) {
     if ( QShortcut *sc = QgsGui::shortcutsManager()->shortcutByName( objectName ) )
       connect( sc, &QShortcut::activated, this, slot );
   };
@@ -277,7 +277,7 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mActionEnableShadows = new QAction( tr( "Show Shadows" ), this );
   mActionEnableShadows->setCheckable( true );
-  connect( mActionEnableShadows, &QAction::toggled, this, [this]( bool enabled ) {
+  connect( mActionEnableShadows, &QAction::toggled, this, [=]( bool enabled ) {
     QgsShadowSettings settings = mCanvas->mapSettings()->shadowSettings();
     settings.setRenderShadows( enabled );
     mCanvas->mapSettings()->setShadowSettings( settings );
@@ -286,14 +286,14 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mActionEnableEyeDome = new QAction( tr( "Show Eye Dome Lighting" ), this );
   mActionEnableEyeDome->setCheckable( true );
-  connect( mActionEnableEyeDome, &QAction::triggered, this, [this]( bool enabled ) {
+  connect( mActionEnableEyeDome, &QAction::triggered, this, [=]( bool enabled ) {
     mCanvas->mapSettings()->setEyeDomeLightingEnabled( enabled );
   } );
   mEffectsMenu->addAction( mActionEnableEyeDome );
 
   mActionEnableAmbientOcclusion = new QAction( tr( "Show Ambient Occlusion" ), this );
   mActionEnableAmbientOcclusion->setCheckable( true );
-  connect( mActionEnableAmbientOcclusion, &QAction::triggered, this, [this]( bool enabled ) {
+  connect( mActionEnableAmbientOcclusion, &QAction::triggered, this, [=]( bool enabled ) {
     QgsAmbientOcclusionSettings ambientOcclusionSettings = mCanvas->mapSettings()->ambientOcclusionSettings();
     ambientOcclusionSettings.setEnabled( enabled );
     mCanvas->mapSettings()->setAmbientOcclusionSettings( ambientOcclusionSettings );
@@ -308,7 +308,7 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
   mCanvas = new Qgs3DMapCanvas;
   mCanvas->setMinimumSize( QSize( 200, 200 ) );
 
-  connect( mCanvas, &Qgs3DMapCanvas::savedAsImage, this, []( const QString &fileName ) {
+  connect( mCanvas, &Qgs3DMapCanvas::savedAsImage, this, [=]( const QString &fileName ) {
     QgisApp::instance()->messageBar()->pushSuccess( tr( "Save as Image" ), tr( "Successfully saved the 3D map to <a href=\"%1\">%2</a>" ).arg( QUrl::fromLocalFile( fileName ).toString(), QDir::toNativeSeparators( fileName ) ) );
   } );
 
@@ -353,7 +353,7 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
 
   mLabelNavSpeedHideTimeout = new QTimer( this );
   mLabelNavSpeedHideTimeout->setInterval( 1000 );
-  connect( mLabelNavSpeedHideTimeout, &QTimer::timeout, this, [this] {
+  connect( mLabelNavSpeedHideTimeout, &QTimer::timeout, this, [=] {
     mLabelNavigationSpeed->hide();
     mLabelNavSpeedHideTimeout->stop();
   } );
@@ -404,10 +404,10 @@ Qgs3DMapCanvasWidget::Qgs3DMapCanvasWidget( const QString &name, bool isDocked )
   }
   QAction *dockAction = mDockableWidgetHelper->createDockUndockAction( tr( "Dock 3D Map View" ), this );
   toolBar->addAction( dockAction );
-  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [this]() {
+  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [=]() {
     QgisApp::instance()->close3DMapView( canvasName() );
   } );
-  connect( dockAction, &QAction::toggled, this, [toolBar]( const bool isSmallSize ) {
+  connect( dockAction, &QAction::toggled, this, [=]( const bool isSmallSize ) {
     toolBar->setIconSize( QgisApp::instance()->iconSize( isSmallSize ) );
   } );
 
@@ -769,7 +769,7 @@ void Qgs3DMapCanvasWidget::configure()
   Qgs3DMapConfigWidget *w = new Qgs3DMapConfigWidget( map, mMainCanvas, mCanvas, mConfigureDialog );
   QDialogButtonBox *buttons = new QDialogButtonBox( QDialogButtonBox::Apply | QDialogButtonBox::Ok | QDialogButtonBox::Cancel | QDialogButtonBox::Help, mConfigureDialog );
 
-  auto applyConfig = [this, map, w]() {
+  auto applyConfig = [=]() {
     const QgsVector3D oldOrigin = map->origin();
     const QgsCoordinateReferenceSystem oldCrs = map->crs();
     const QgsCameraPose oldCameraPose = mCanvas->cameraController()->cameraPose();
@@ -797,7 +797,7 @@ void Qgs3DMapCanvasWidget::configure()
   };
 
   connect( buttons, &QDialogButtonBox::rejected, mConfigureDialog, &QDialog::reject );
-  connect( buttons, &QDialogButtonBox::clicked, mConfigureDialog, [this, buttons, applyConfig]( QAbstractButton *button ) {
+  connect( buttons, &QDialogButtonBox::clicked, mConfigureDialog, [=]( QAbstractButton *button ) {
     if ( button == buttons->button( QDialogButtonBox::Apply ) || button == buttons->button( QDialogButtonBox::Ok ) )
       applyConfig();
     if ( button == buttons->button( QDialogButtonBox::Ok ) )
@@ -805,7 +805,7 @@ void Qgs3DMapCanvasWidget::configure()
   } );
   connect( buttons, &QDialogButtonBox::helpRequested, w, []() { QgsHelp::openHelp( QStringLiteral( "map_views/3d_map_view.html#scene-configuration" ) ); } );
 
-  connect( w, &Qgs3DMapConfigWidget::isValidChanged, this, [buttons]( bool valid ) {
+  connect( w, &Qgs3DMapConfigWidget::isValidChanged, this, [=]( bool valid ) {
     buttons->button( QDialogButtonBox::Apply )->setEnabled( valid );
     buttons->button( QDialogButtonBox::Ok )->setEnabled( valid );
   } );
@@ -838,7 +838,7 @@ void Qgs3DMapCanvasWidget::exportScene()
 
   connect( buttons, &QDialogButtonBox::accepted, &dlg, &QDialog::accept );
   connect( buttons, &QDialogButtonBox::rejected, &dlg, &QDialog::reject );
-  connect( buttons, &QDialogButtonBox::helpRequested, &dlg, [] { QgsHelp::openHelp( QStringLiteral( "map_views/3d_map_view.html" ) ); } );
+  connect( buttons, &QDialogButtonBox::helpRequested, &dlg, [=] { QgsHelp::openHelp( QStringLiteral( "map_views/3d_map_view.html" ) ); } );
 
   QVBoxLayout *layout = new QVBoxLayout( &dlg );
   layout->addWidget( &exportWidget, 1 );
@@ -902,7 +902,7 @@ void Qgs3DMapCanvasWidget::mapThemeMenuAboutToShow()
   {
     actionFollowMain->setChecked( true );
   }
-  connect( actionFollowMain, &QAction::triggered, this, [this] {
+  connect( actionFollowMain, &QAction::triggered, this, [=] {
     mCanvas->mapSettings()->setTerrainMapTheme( QString() );
   } );
   mMapThemeMenuPresetActions.append( actionFollowMain );

src/app/3d/qgs3dmapconfigwidget.cpp

@@ -59,7 +59,7 @@ Qgs3DMapConfigWidget::Qgs3DMapConfigWidget( Qgs3DMapSettings *map, QgsMapCanvas
   // get rid of annoying outer focus rect on Mac
   m3DOptionsListWidget->setAttribute( Qt::WA_MacShowFocusRect, false );
   m3DOptionsListWidget->setCurrentRow( settings.value( QStringLiteral( "Windows/3DMapConfig/Tab" ), 0 ).toInt() );
-  connect( m3DOptionsListWidget, &QListWidget::currentRowChanged, this, [this]( int index ) { m3DOptionsStackedWidget->setCurrentIndex( index ); } );
+  connect( m3DOptionsListWidget, &QListWidget::currentRowChanged, this, [=]( int index ) { m3DOptionsStackedWidget->setCurrentIndex( index ); } );
   m3DOptionsStackedWidget->setCurrentIndex( m3DOptionsListWidget->currentRow() );
 
   if ( !settings.contains( QStringLiteral( "Windows/3DMapConfig/OptionsSplitState" ) ) )
@@ -76,7 +76,7 @@ Qgs3DMapConfigWidget::Qgs3DMapConfigWidget( Qgs3DMapSettings *map, QgsMapCanvas
 
   cboCameraProjectionType->addItem( tr( "Perspective Projection" ), Qt3DRender::QCameraLens::PerspectiveProjection );
   cboCameraProjectionType->addItem( tr( "Orthogonal Projection" ), Qt3DRender::QCameraLens::OrthographicProjection );
-  connect( cboCameraProjectionType, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this]() {
+  connect( cboCameraProjectionType, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]() {
     spinCameraFieldOfView->setEnabled( cboCameraProjectionType->currentIndex() == cboCameraProjectionType->findData( Qt3DRender::QCameraLens::PerspectiveProjection ) );
   } );
 

src/app/3d/qgs3dnavigationwidget.cpp

@@ -47,7 +47,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mZoomInButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeZoom( ZOOM_FACTOR );
@@ -61,7 +61,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mZoomOutButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeZoom( 1 / ZOOM_FACTOR );
@@ -75,7 +75,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mTiltUpButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       m3DMapCanvas->cameraController()->tiltUpAroundViewCenter( 1 );
     }
   );
@@ -85,7 +85,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mTiltDownButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       m3DMapCanvas->cameraController()->tiltUpAroundViewCenter( -1 );
     }
   );
@@ -98,7 +98,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mCompass,
     &QwtDial::valueChanged,
     m3DMapCanvas,
-    [this] {
+    [=] {
       m3DMapCanvas->cameraController()->setCameraHeadingAngle( float( mCompass->value() ) );
     }
   );
@@ -108,7 +108,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mMoveUpButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeMoveCenterPoint( MOVE_FACTOR * controller->cameraPose().distanceFromCenterPoint(), 0 );
@@ -122,7 +122,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mMoveRightButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeMoveCenterPoint( 0, MOVE_FACTOR * controller->cameraPose().distanceFromCenterPoint() );
@@ -136,7 +136,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mMoveDownButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeMoveCenterPoint( -MOVE_FACTOR * controller->cameraPose().distanceFromCenterPoint(), 0 );
@@ -150,7 +150,7 @@ Qgs3DNavigationWidget::Qgs3DNavigationWidget( Qgs3DMapCanvas *canvas, QWidget *p
     mMoveLeftButton,
     &QToolButton::clicked,
     m3DMapCanvas,
-    [this] {
+    [=] {
       QgsCameraController *controller = m3DMapCanvas->cameraController();
       if ( m3DMapCanvas->mapSettings()->sceneMode() == Qgis::SceneMode::Globe )
         controller->globeMoveCenterPoint( 0, -MOVE_FACTOR * controller->cameraPose().distanceFromCenterPoint() );

src/app/3d/qgsmap3dexportwidget.cpp

@@ -38,14 +38,14 @@ QgsMap3DExportWidget::QgsMap3DExportWidget( Qgs3DMapScene *scene, Qgs3DMapExport
 
   loadSettings();
 
-  connect( ui->sceneNameLineEdit, &QLineEdit::textChanged, this, [this]( const QString & ) { settingsChanged(); } );
-  connect( ui->selectFolderWidget, &QgsFileWidget::fileChanged, this, [this]( const QString & ) { settingsChanged(); } );
-  connect( ui->smoothEdgesCheckBox, &QCheckBox::stateChanged, this, [this]( int ) { settingsChanged(); } );
-  connect( ui->terrainResolutionSpinBox, qOverload<int>( &QSpinBox::valueChanged ), this, [this]( int ) { settingsChanged(); } );
-  connect( ui->exportNormalsCheckBox, &QCheckBox::stateChanged, this, [this]( int ) { settingsChanged(); } );
-  connect( ui->exportTexturesCheckBox, &QCheckBox::stateChanged, this, [this]( int ) { settingsChanged(); } );
-  connect( ui->terrainTextureResolutionSpinBox, qOverload<int>( &QSpinBox::valueChanged ), this, [this]( int ) { settingsChanged(); } );
-  connect( ui->scaleSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( int ) { settingsChanged(); } );
+  connect( ui->sceneNameLineEdit, &QLineEdit::textChanged, this, [=]( const QString & ) { settingsChanged(); } );
+  connect( ui->selectFolderWidget, &QgsFileWidget::fileChanged, this, [=]( const QString & ) { settingsChanged(); } );
+  connect( ui->smoothEdgesCheckBox, &QCheckBox::stateChanged, this, [=]( int ) { settingsChanged(); } );
+  connect( ui->terrainResolutionSpinBox, qOverload<int>( &QSpinBox::valueChanged ), this, [=]( int ) { settingsChanged(); } );
+  connect( ui->exportNormalsCheckBox, &QCheckBox::stateChanged, this, [=]( int ) { settingsChanged(); } );
+  connect( ui->exportTexturesCheckBox, &QCheckBox::stateChanged, this, [=]( int ) { settingsChanged(); } );
+  connect( ui->terrainTextureResolutionSpinBox, qOverload<int>( &QSpinBox::valueChanged ), this, [=]( int ) { settingsChanged(); } );
+  connect( ui->scaleSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( int ) { settingsChanged(); } );
 
   // sets the export settings to whatever is on the scene
   settingsChanged();

src/app/3d/qgsmetalroughmaterialwidget.cpp

@@ -30,11 +30,11 @@ QgsMetalRoughMaterialWidget::QgsMetalRoughMaterialWidget( QWidget *parent, bool
   setSettings( &defaultMaterial, nullptr );
 
   connect( mButtonBaseColor, &QgsColorButton::colorChanged, this, &QgsMetalRoughMaterialWidget::changed );
-  connect( mSpinMetalness, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [this] {
+  connect( mSpinMetalness, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [=] {
     updateWidgetState();
     emit changed();
   } );
-  connect( mSpinRoughness, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [this] {
+  connect( mSpinRoughness, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [=] {
     updateWidgetState();
     emit changed();
   } );

src/app/3d/qgsphongmaterialwidget.cpp

@@ -34,7 +34,7 @@ QgsPhongMaterialWidget::QgsPhongMaterialWidget( QWidget *parent, bool hasOpacity
   connect( btnDiffuse, &QgsColorButton::colorChanged, this, &QgsPhongMaterialWidget::changed );
   connect( btnAmbient, &QgsColorButton::colorChanged, this, &QgsPhongMaterialWidget::changed );
   connect( btnSpecular, &QgsColorButton::colorChanged, this, &QgsPhongMaterialWidget::changed );
-  connect( spinShininess, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [this] {
+  connect( spinShininess, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [=] {
     updateWidgetState();
     emit changed();
   } );

src/app/3d/qgsphongtexturedmaterialwidget.cpp

@@ -33,7 +33,7 @@ QgsPhongTexturedMaterialWidget::QgsPhongTexturedMaterialWidget( QWidget *parent
 
   connect( btnAmbient, &QgsColorButton::colorChanged, this, &QgsPhongTexturedMaterialWidget::changed );
   connect( btnSpecular, &QgsColorButton::colorChanged, this, &QgsPhongTexturedMaterialWidget::changed );
-  connect( spinShininess, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [this] {
+  connect( spinShininess, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [=] {
     updateWidgetState();
     emit changed();
   } );

src/app/3d/qgsrulebased3drendererwidget.cpp

@@ -587,8 +587,8 @@ Qgs3DRendererRulePropsWidget::Qgs3DRendererRulePropsWidget( QgsRuleBased3DRender
   connect( editDescription, &QLineEdit::textChanged, this, &Qgs3DRendererRulePropsWidget::widgetChanged );
   connect( groupSymbol, &QGroupBox::toggled, this, &Qgs3DRendererRulePropsWidget::widgetChanged );
   connect( mSymbolWidget, &QgsSymbol3DWidget::widgetChanged, this, &Qgs3DRendererRulePropsWidget::widgetChanged );
-  connect( mFilterRadio, &QRadioButton::toggled, this, [this]( bool toggled ) { filterFrame->setEnabled( toggled ); } );
-  connect( mElseRadio, &QRadioButton::toggled, this, [this]( bool toggled ) { if ( toggled ) editFilter->setText( QStringLiteral( "ELSE" ) ); } );
+  connect( mFilterRadio, &QRadioButton::toggled, this, [=]( bool toggled ) { filterFrame->setEnabled( toggled ); } );
+  connect( mElseRadio, &QRadioButton::toggled, this, [=]( bool toggled ) { if ( toggled ) editFilter->setText( QStringLiteral( "ELSE" ) ); } );
 }
 
 Qgs3DRendererRulePropsWidget::~Qgs3DRendererRulePropsWidget() = default;

src/app/browser/qgsinbuiltdataitemproviders.cpp

@@ -93,7 +93,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   QgsSettings settings;
 
   QAction *actionRefresh = new QAction( tr( "Refresh" ), menu );
-  connect( actionRefresh, &QAction::triggered, this, [directoryItem] { directoryItem->refresh(); } );
+  connect( actionRefresh, &QAction::triggered, this, [=] { directoryItem->refresh(); } );
   menu->addAction( actionRefresh );
 
   menu->addSeparator();
@@ -101,7 +101,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   QMenu *newMenu = new QMenu( tr( "New" ), menu );
 
   QAction *createFolder = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewFolder.svg" ) ), tr( "Directory…" ), menu );
-  connect( createFolder, &QAction::triggered, this, [directoryItem, context] {
+  connect( createFolder, &QAction::triggered, this, [=] {
     bool ok = false;
 
     const QString name = QInputDialog::getText( QgisApp::instance(), tr( "Create Directory" ), tr( "Directory name" ), QLineEdit::Normal, QString(), &ok );
@@ -126,7 +126,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
 
   QAction *createGpkg = new QAction( tr( "GeoPackage…" ), newMenu );
   createGpkg->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewGeoPackageLayer.svg" ) ) );
-  connect( createGpkg, &QAction::triggered, this, [directoryItem, context] {
+  connect( createGpkg, &QAction::triggered, this, [=] {
     QDir dir( directoryItem->dirPath() );
     QString newName = tr( "New GeoPackage.gpkg" );
     int i = 1;
@@ -175,7 +175,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
 
   QAction *createShp = new QAction( tr( "ShapeFile…" ), newMenu );
   createShp->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewVectorLayer.svg" ) ) );
-  connect( createShp, &QAction::triggered, this, [directoryItem, item, context] {
+  connect( createShp, &QAction::triggered, this, [=] {
     QString enc;
     QDir dir( directoryItem->dirPath() );
     QString error;
@@ -195,7 +195,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
 #if GDAL_VERSION_NUM >= GDAL_COMPUTE_VERSION( 3, 6, 0 )
   QAction *createFgdb = new QAction( tr( "ESRI FileGeodatabase…" ), newMenu );
   createFgdb->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionNewFileGeodatabase.svg" ) ) );
-  connect( createFgdb, &QAction::triggered, this, [directoryItem, context] {
+  connect( createFgdb, &QAction::triggered, this, [=] {
     QDir dir( directoryItem->dirPath() );
     QString newName = tr( "New File Geodatabase.gdb" );
     int i = 1;
@@ -254,7 +254,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
     QAction *addAsFavorite = new QAction( tr( "Add as a Favorite" ), menu );
     addAsFavorite->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mIconFavorites.svg" ) ) );
     menu->addAction( addAsFavorite );
-    connect( addAsFavorite, &QAction::triggered, this, [this, directoryItem] {
+    connect( addAsFavorite, &QAction::triggered, this, [=] {
       addFavorite( directoryItem );
     } );
   }
@@ -263,13 +263,13 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
     if ( QgsFavoriteItem *favoriteItem = qobject_cast<QgsFavoriteItem *>( item ) )
     {
       QAction *actionRename = new QAction( tr( "Rename Favorite…" ), menu );
-      connect( actionRename, &QAction::triggered, this, [this, favoriteItem] {
+      connect( actionRename, &QAction::triggered, this, [=] {
         renameFavorite( favoriteItem );
       } );
       menu->addAction( actionRename );
 
       QAction *removeFavoriteAction = new QAction( tr( "Remove Favorite" ), menu );
-      connect( removeFavoriteAction, &QAction::triggered, this, [this, favoriteItem] {
+      connect( removeFavoriteAction, &QAction::triggered, this, [=] {
         removeFavorite( favoriteItem );
       } );
       menu->addAction( removeFavoriteAction );
@@ -277,7 +277,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
     }
   }
   QAction *hideAction = new QAction( tr( "Hide from Browser" ), menu );
-  connect( hideAction, &QAction::triggered, this, [this, directoryItem] {
+  connect( hideAction, &QAction::triggered, this, [=] {
     hideDirectory( directoryItem );
   } );
   menu->addAction( hideAction );
@@ -289,7 +289,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   for ( const QString &path : hiddenPathList )
   {
     QAction *action = new QAction( QDir::toNativeSeparators( path ), hiddenMenu );
-    connect( action, &QAction::triggered, this, [path] {
+    connect( action, &QAction::triggered, this, [=] {
       QgsSettings s;
       QStringList pathsList = s.value( QStringLiteral( "/browser/hiddenPaths" ) ).toStringList();
       pathsList.removeAll( path );
@@ -321,7 +321,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
     hiddenMenu->addSeparator();
 
     QAction *moreAction = new QAction( tr( "Show More…" ), hiddenMenu );
-    connect( moreAction, &QAction::triggered, this, [] {
+    connect( moreAction, &QAction::triggered, this, [=] {
       QgisApp::instance()->showOptionsDialog( QgisApp::instance(), QStringLiteral( "mOptionsPageDataSources" ) );
     } );
     hiddenMenu->addAction( moreAction );
@@ -337,14 +337,14 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
     const QPixmap icon = QgsColorButton::createMenuIcon( directoryItem->iconColor(), true );
     actionSetIconColor->setIcon( icon );
   }
-  connect( actionSetIconColor, &QAction::triggered, this, [this, directoryItem] {
+  connect( actionSetIconColor, &QAction::triggered, this, [=] {
     changeDirectoryColor( directoryItem );
   } );
   menu->addAction( actionSetIconColor );
   if ( directoryItem->iconColor().isValid() )
   {
     QAction *actionClearIconColor = new QAction( tr( "Clear Custom Color" ), menu );
-    connect( actionClearIconColor, &QAction::triggered, this, [this, directoryItem] {
+    connect( actionClearIconColor, &QAction::triggered, this, [=] {
       clearDirectoryColor( directoryItem );
     } );
     menu->addAction( actionClearIconColor );
@@ -353,7 +353,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   QMenu *scanningMenu = new QMenu( tr( "Scanning" ), menu );
 
   QAction *monitorAction = new QAction( tr( "Monitor for Changes" ), scanningMenu );
-  connect( monitorAction, &QAction::triggered, this, [this, directoryItem] {
+  connect( monitorAction, &QAction::triggered, this, [=] {
     toggleMonitor( directoryItem );
   } );
   monitorAction->setCheckable( true );
@@ -361,7 +361,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   scanningMenu->addAction( monitorAction );
 
   QAction *fastScanAction = new QAction( tr( "Fast Scan this Directory" ), scanningMenu );
-  connect( fastScanAction, &QAction::triggered, this, [this, directoryItem] {
+  connect( fastScanAction, &QAction::triggered, this, [=] {
     toggleFastScan( directoryItem );
   } );
   fastScanAction->setCheckable( true );
@@ -373,7 +373,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   menu->addSeparator();
 
   QAction *openFolder = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "mIconFolder.svg" ) ), tr( "Open Directory…" ), menu );
-  connect( openFolder, &QAction::triggered, this, [directoryItem] {
+  connect( openFolder, &QAction::triggered, this, [=] {
     QDesktopServices::openUrl( QUrl::fromLocalFile( directoryItem->dirPath() ) );
   } );
   menu->addAction( openFolder );
@@ -381,7 +381,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   if ( QgsGui::nativePlatformInterface()->capabilities() & QgsNative::NativeOpenTerminalAtPath )
   {
     QAction *openTerminal = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "mActionTerminal.svg" ) ), tr( "Open in Terminal…" ), menu );
-    connect( openTerminal, &QAction::triggered, this, [directoryItem] {
+    connect( openTerminal, &QAction::triggered, this, [=] {
       QgsGui::nativePlatformInterface()->openTerminalAtPath( directoryItem->dirPath() );
     } );
     menu->addAction( openTerminal );
@@ -389,7 +389,7 @@ void QgsAppDirectoryItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
   }
 
   QAction *propertiesAction = new QAction( tr( "Properties…" ), menu );
-  connect( propertiesAction, &QAction::triggered, this, [this, directoryItem, context] {
+  connect( propertiesAction, &QAction::triggered, this, [=] {
     showProperties( directoryItem, context );
   } );
   menu->addAction( propertiesAction );
@@ -513,7 +513,7 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
     if ( !sourceSelectProviders.isEmpty() && sourceSelectProviders.first()->capabilities().testFlag( QgsSourceSelectProvider::Capability::ConfigureFromUri ) )
     {
       openDataSourceManagerAction = new QAction( tr( "Open with Data Source Manager…" ), menu );
-      connect( openDataSourceManagerAction, &QAction::triggered, this, [layerItem] {
+      connect( openDataSourceManagerAction, &QAction::triggered, this, [=] {
         QString pageName { layerItem->providerKey() };
         // GPKG special handling
         if ( qobject_cast<QgsGeoPackageVectorLayerItem *>( layerItem ) )
@@ -537,7 +537,7 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
     {
       const QgsProviderSublayerDetails &sublayer { sublayers.first() };
       openDataSourceManagerAction = new QAction( tr( "Open with Data Source Manager…" ), menu );
-      connect( openDataSourceManagerAction, &QAction::triggered, this, [sublayer, layerItem] {
+      connect( openDataSourceManagerAction, &QAction::triggered, this, [=] {
         QString pageName { sublayer.providerKey() };
         // GPKG special handling
         if ( sublayer.driverName() == QLatin1String( "GeoPackage" ) )
@@ -587,7 +587,7 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
         if ( fi.suffix().compare( ext, Qt::CaseInsensitive ) == 0 )
         {
           QAction *viewAction = new QAction( tr( "Open %1 Externally…" ).arg( name ), menu );
-          connect( viewAction, &QAction::triggered, this, [filename] {
+          connect( viewAction, &QAction::triggered, this, [=] {
             QDesktopServices::openUrl( QUrl::fromLocalFile( filename ) );
           } );
 
@@ -646,7 +646,7 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
       {
         const QString renameText = tr( "Rename “%1”…" ).arg( fi.fileName() );
         QAction *renameAction = new QAction( renameText, menu );
-        connect( renameAction, &QAction::triggered, this, [this, selectedFiles, context, selectedParents, menu] {
+        connect( renameAction, &QAction::triggered, this, [=] {
           const QString oldPath = selectedFiles.value( 0 );
           const QStringList existingNames = QFileInfo( oldPath ).dir().entryList();
 
@@ -670,7 +670,7 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
       const QString deleteText = selectedFiles.count() == 1 ? tr( "Delete “%1”…" ).arg( fi.fileName() )
                                                             : tr( "Delete Selected Files…" );
       QAction *deleteAction = new QAction( deleteText, menu );
-      connect( deleteAction, &QAction::triggered, this, [selectedFiles, selectedParents, context] {
+      connect( deleteAction, &QAction::triggered, this, [=] {
         // Check if the files correspond to paths in the project
         QList<QgsMapLayer *> layersList;
         for ( const QString &path : std::as_const( selectedFiles ) )
@@ -810,12 +810,12 @@ void QgsAppFileItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *m
           menu->addSeparator();
 
         QAction *showInFilesAction = menu->addAction( tr( "Show in Files" ) );
-        connect( showInFilesAction, &QAction::triggered, this, [item] {
+        connect( showInFilesAction, &QAction::triggered, this, [=] {
           QgsGui::nativePlatformInterface()->openFileExplorerAndSelectFile( item->path() );
         } );
 
         QAction *filePropertiesAction = menu->addAction( tr( "File Properties…" ) );
-        connect( filePropertiesAction, &QAction::triggered, this, [item] {
+        connect( filePropertiesAction, &QAction::triggered, this, [=] {
           QgsGui::nativePlatformInterface()->showFileProperties( item->path() );
         } );
       }
@@ -939,7 +939,7 @@ void QgsProjectHomeItemGuiProvider::populateContextMenu( QgsDataItem *item, QMen
     menu->insertSeparator( menu->actions().at( 0 ) );
 
   QAction *setHome = new QAction( tr( "Set Project Home…" ), menu );
-  connect( setHome, &QAction::triggered, this, [] {
+  connect( setHome, &QAction::triggered, this, [=] {
     QString oldHome = QgsProject::instance()->homePath();
     QString newPath = QFileDialog::getExistingDirectory( QgisApp::instance(), tr( "Select Project Home Directory" ), oldHome );
     if ( !newPath.isEmpty() )
@@ -970,7 +970,7 @@ void QgsFavoritesItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu
     return;
 
   QAction *addAction = new QAction( tr( "Add a Directory…" ), menu );
-  connect( addAction, &QAction::triggered, this, [] {
+  connect( addAction, &QAction::triggered, this, [=] {
     QString directory = QFileDialog::getExistingDirectory( QgisApp::instance(), tr( "Add Directory to Favorites" ) );
     if ( !directory.isEmpty() )
     {
@@ -1065,7 +1065,7 @@ void QgsLayerItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *men
     const QString deleteText = selectedDeletableItemPaths.count() == 1 ? tr( "Delete Layer “%1”…" ).arg( layerItem->name() )
                                                                        : tr( "Delete Selected Layers…" );
     QAction *deleteAction = new QAction( deleteText, menu );
-    connect( deleteAction, &QAction::triggered, this, [this, selectedDeletableItemPaths, context] {
+    connect( deleteAction, &QAction::triggered, this, [=] {
       deleteLayers( selectedDeletableItemPaths, context );
     } );
 
@@ -1095,7 +1095,7 @@ void QgsLayerItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *men
   const QString addText = selectedItems.count() == 1 ? tr( "Add Layer to Project" )
                                                      : tr( "Add Selected Layers to Project" );
   QAction *addAction = new QAction( addText, menu );
-  connect( addAction, &QAction::triggered, this, [this, selectedItems] {
+  connect( addAction, &QAction::triggered, this, [=] {
     addLayersFromItems( selectedItems );
   } );
   menu->addAction( addAction );
@@ -1117,7 +1117,7 @@ void QgsLayerItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu *men
   }
 
   QAction *propertiesAction = new QAction( tr( "Layer Properties…" ), menu );
-  connect( propertiesAction, &QAction::triggered, this, [this, layerItem, context] {
+  connect( propertiesAction, &QAction::triggered, this, [=] {
     showPropertiesForItem( layerItem, context );
   } );
   menu->addAction( propertiesAction );
@@ -2077,13 +2077,13 @@ bool QgsDatabaseItemGuiProvider::handleDrop( QgsDataItem *item, QgsDataItemGuiCo
           mainTask->addSubTask( exportTask );
           hasSubTasks = true;
           // when export is successful:
-          connect( exportTask, &QgsVectorLayerExporterTask::exportComplete, item, [item, context]() {
+          connect( exportTask, &QgsVectorLayerExporterTask::exportComplete, item, [=]() {
             notify( tr( "Import to database" ), tr( "Import was successful." ), context, Qgis::MessageLevel::Success );
             item->refresh();
           } );
 
           // when an error occurs:
-          connect( exportTask, &QgsVectorLayerExporterTask::errorOccurred, item, []( Qgis::VectorExportResult error, const QString &errorMessage ) {
+          connect( exportTask, &QgsVectorLayerExporterTask::errorOccurred, item, [=]( Qgis::VectorExportResult error, const QString &errorMessage ) {
             if ( error != Qgis::VectorExportResult::UserCanceled )
             {
               QgsMessageOutput *output = QgsMessageOutput::createMessageOutput();
@@ -2297,7 +2297,7 @@ void QgsFieldDomainItemGuiProvider::populateContextMenu( QgsDataItem *item, QMen
         {
           QAction *rangeDomainAction = new QAction( QObject::tr( "New Range Domain…" ) );
           createFieldDomainMenu->addAction( rangeDomainAction );
-          connect( rangeDomainAction, &QAction::triggered, this, [createDomain] {
+          connect( rangeDomainAction, &QAction::triggered, this, [=] {
             createDomain( Qgis::FieldDomainType::Range );
           } );
         }
@@ -2306,7 +2306,7 @@ void QgsFieldDomainItemGuiProvider::populateContextMenu( QgsDataItem *item, QMen
         {
           QAction *codedDomainAction = new QAction( QObject::tr( "New Coded Values Domain…" ) );
           createFieldDomainMenu->addAction( codedDomainAction );
-          connect( codedDomainAction, &QAction::triggered, this, [createDomain] {
+          connect( codedDomainAction, &QAction::triggered, this, [=] {
             createDomain( Qgis::FieldDomainType::Coded );
           } );
         }
@@ -2315,7 +2315,7 @@ void QgsFieldDomainItemGuiProvider::populateContextMenu( QgsDataItem *item, QMen
         {
           QAction *globDomainAction = new QAction( QObject::tr( "New Glob Domain…" ) );
           createFieldDomainMenu->addAction( globDomainAction );
-          connect( globDomainAction, &QAction::triggered, this, [createDomain] {
+          connect( globDomainAction, &QAction::triggered, this, [=] {
             createDomain( Qgis::FieldDomainType::Glob );
           } );
         }
@@ -2580,7 +2580,7 @@ void QgsRelationshipItemGuiProvider::populateContextMenu( QgsDataItem *item, QMe
 
           QPointer<QgsDataItem> itemWeakPointer( item );
 
-          connect( editRelationshipAction, &QAction::triggered, this, [md, itemWeakPointer, relation, connectionUri, context] {
+          connect( editRelationshipAction, &QAction::triggered, this, [=] {
             std::unique_ptr<QgsAbstractDatabaseProviderConnection> conn { static_cast<QgsAbstractDatabaseProviderConnection *>( md->createConnection( connectionUri, {} ) ) };
 
             QgsDbRelationDialog dialog( conn.release(), QgisApp::instance() );

src/app/decorations/qgsdecorationcopyrightdialog.cpp

@@ -67,7 +67,7 @@ QgsDecorationCopyrightDialog::QgsDecorationCopyrightDialog( QgsDecorationCopyrig
   cboPlacement->addItem( tr( "Bottom Left" ), QgsDecorationItem::BottomLeft );
   cboPlacement->addItem( tr( "Bottom Center" ), QgsDecorationItem::BottomCenter );
   cboPlacement->addItem( tr( "Bottom Right" ), QgsDecorationItem::BottomRight );
-  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     spnHorizontal->setMinimum( cboPlacement->currentData() == QgsDecorationItem::TopCenter || cboPlacement->currentData() == QgsDecorationItem::BottomCenter ? -100 : 0 );
   } );
   cboPlacement->setCurrentIndex( cboPlacement->findData( mDeco.placement() ) );

src/app/decorations/qgsdecorationgriddialog.cpp

@@ -38,7 +38,7 @@ QgsDecorationGridDialog::QgsDecorationGridDialog( QgsDecorationGrid &deco, QWidg
 
   connect( buttonBox, &QDialogButtonBox::accepted, this, &QgsDecorationGridDialog::buttonBox_accepted );
   connect( buttonBox, &QDialogButtonBox::rejected, this, &QgsDecorationGridDialog::buttonBox_rejected );
-  connect( mGridTypeComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this]( int ) { updateSymbolButtons(); } );
+  connect( mGridTypeComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]( int ) { updateSymbolButtons(); } );
   connect( mPbtnUpdateFromExtents, &QPushButton::clicked, this, &QgsDecorationGridDialog::mPbtnUpdateFromExtents_clicked );
   connect( mPbtnUpdateFromLayer, &QPushButton::clicked, this, &QgsDecorationGridDialog::mPbtnUpdateFromLayer_clicked );
   connect( buttonBox, &QDialogButtonBox::helpRequested, this, &QgsDecorationGridDialog::showHelp );
@@ -47,7 +47,7 @@ QgsDecorationGridDialog::QgsDecorationGridDialog( QgsDecorationGrid &deco, QWidg
   mLineSymbolButton->setSymbolType( Qgis::SymbolType::Line );
 
   grpEnable->setChecked( mDeco.enabled() );
-  connect( grpEnable, &QGroupBox::toggled, this, [this] { updateSymbolButtons(); } );
+  connect( grpEnable, &QGroupBox::toggled, this, [=] { updateSymbolButtons(); } );
 
   mOffsetXEdit->setShowClearButton( true );
   mOffsetXEdit->setClearValue( 0 );

src/app/decorations/qgsdecorationimagedialog.cpp

@@ -51,7 +51,7 @@ QgsDecorationImageDialog::QgsDecorationImageDialog( QgsDecorationImage &deco, QW
   cboPlacement->addItem( tr( "Bottom Left" ), QgsDecorationItem::BottomLeft );
   cboPlacement->addItem( tr( "Bottom Center" ), QgsDecorationItem::BottomCenter );
   cboPlacement->addItem( tr( "Bottom Right" ), QgsDecorationItem::BottomRight );
-  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     spinHorizontal->setMinimum( cboPlacement->currentData() == QgsDecorationItem::TopCenter || cboPlacement->currentData() == QgsDecorationItem::BottomCenter ? -100 : 0 );
   } );
   cboPlacement->setCurrentIndex( cboPlacement->findData( mDeco.placement() ) );
@@ -69,7 +69,7 @@ QgsDecorationImageDialog::QgsDecorationImageDialog( QgsDecorationImage &deco, QW
 
   // enabled
   grpEnable->setChecked( mDeco.enabled() );
-  connect( grpEnable, &QGroupBox::toggled, this, [this] { updateEnabledColorButtons(); } );
+  connect( grpEnable, &QGroupBox::toggled, this, [=] { updateEnabledColorButtons(); } );
 
   wgtImagePath->setFilePath( mDeco.imagePath() );
   connect( wgtImagePath, &QgsFileWidget::fileChanged, this, &QgsDecorationImageDialog::updateImagePath );
@@ -83,8 +83,8 @@ QgsDecorationImageDialog::QgsDecorationImageDialog( QgsDecorationImage &deco, QW
   pbnChangeOutlineColor->setColor( mDeco.mOutlineColor );
   pbnChangeOutlineColor->setContext( QStringLiteral( "gui" ) );
   pbnChangeOutlineColor->setColorDialogTitle( tr( "Select SVG Image Outline Color" ) );
-  connect( pbnChangeColor, &QgsColorButton::colorChanged, this, [this]( QColor ) { drawImage(); } );
-  connect( pbnChangeOutlineColor, &QgsColorButton::colorChanged, this, [this]( QColor ) { drawImage(); } );
+  connect( pbnChangeColor, &QgsColorButton::colorChanged, this, [=]( QColor ) { drawImage(); } );
+  connect( pbnChangeOutlineColor, &QgsColorButton::colorChanged, this, [=]( QColor ) { drawImage(); } );
 
   drawImage();
 }

src/app/decorations/qgsdecorationnortharrowdialog.cpp

@@ -52,7 +52,7 @@ QgsDecorationNorthArrowDialog::QgsDecorationNorthArrowDialog( QgsDecorationNorth
   spinAngle->setEnabled( !mDeco.mAutomatic );
   sliderRotation->setEnabled( !mDeco.mAutomatic );
 
-  connect( cboxAutomatic, &QAbstractButton::toggled, this, [this]( bool checked ) {
+  connect( cboxAutomatic, &QAbstractButton::toggled, this, [=]( bool checked ) {
     spinAngle->setEnabled( !checked );
     sliderRotation->setEnabled( !checked );
   } );
@@ -66,7 +66,7 @@ QgsDecorationNorthArrowDialog::QgsDecorationNorthArrowDialog( QgsDecorationNorth
   cboPlacement->addItem( tr( "Bottom Left" ), QgsDecorationItem::BottomLeft );
   cboPlacement->addItem( tr( "Bottom Center" ), QgsDecorationItem::BottomCenter );
   cboPlacement->addItem( tr( "Bottom Right" ), QgsDecorationItem::BottomRight );
-  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     spinHorizontal->setMinimum( cboPlacement->currentData() == QgsDecorationItem::TopCenter || cboPlacement->currentData() == QgsDecorationItem::BottomCenter ? -100 : 0 );
   } );
   cboPlacement->setCurrentIndex( cboPlacement->findData( mDeco.placement() ) );
@@ -87,7 +87,7 @@ QgsDecorationNorthArrowDialog::QgsDecorationNorthArrowDialog( QgsDecorationNorth
 
   mSvgPathLineEdit->setText( mDeco.mSvgPath );
   connect( mSvgPathLineEdit, &QLineEdit::textChanged, this, &QgsDecorationNorthArrowDialog::updateSvgPath );
-  connect( mSvgSelectorBtn, &QPushButton::clicked, this, [this] {
+  connect( mSvgSelectorBtn, &QPushButton::clicked, this, [=] {
     QgsSvgSelectorDialog svgDlg( this );
     svgDlg.setWindowTitle( tr( "Select SVG file" ) );
     svgDlg.svgSelector()->setSvgPath( mSvgPathLineEdit->text().trimmed() );
@@ -109,8 +109,8 @@ QgsDecorationNorthArrowDialog::QgsDecorationNorthArrowDialog( QgsDecorationNorth
   pbnChangeOutlineColor->setColor( mDeco.mOutlineColor );
   pbnChangeOutlineColor->setContext( QStringLiteral( "gui" ) );
   pbnChangeOutlineColor->setColorDialogTitle( tr( "Select North Arrow Outline Color" ) );
-  connect( pbnChangeColor, &QgsColorButton::colorChanged, this, [this]( QColor ) { drawNorthArrow(); } );
-  connect( pbnChangeOutlineColor, &QgsColorButton::colorChanged, this, [this]( QColor ) { drawNorthArrow(); } );
+  connect( pbnChangeColor, &QgsColorButton::colorChanged, this, [=]( QColor ) { drawNorthArrow(); } );
+  connect( pbnChangeOutlineColor, &QgsColorButton::colorChanged, this, [=]( QColor ) { drawNorthArrow(); } );
 
   drawNorthArrow();
 }

src/app/decorations/qgsdecorationscalebardialog.cpp

@@ -64,7 +64,7 @@ QgsDecorationScaleBarDialog::QgsDecorationScaleBarDialog( QgsDecorationScaleBar
   cboPlacement->addItem( tr( "Bottom Left" ), QgsDecorationItem::BottomLeft );
   cboPlacement->addItem( tr( "Bottom Center" ), QgsDecorationItem::BottomCenter );
   cboPlacement->addItem( tr( "Bottom Right" ), QgsDecorationItem::BottomRight );
-  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     spnHorizontal->setMinimum( cboPlacement->currentData() == QgsDecorationItem::TopCenter || cboPlacement->currentData() == QgsDecorationItem::BottomCenter ? -100 : 0 );
   } );
   cboPlacement->setCurrentIndex( cboPlacement->findData( mDeco.placement() ) );

src/app/decorations/qgsdecorationtitledialog.cpp

@@ -74,7 +74,7 @@ QgsDecorationTitleDialog::QgsDecorationTitleDialog( QgsDecorationTitle &deco, QW
   cboPlacement->addItem( tr( "Bottom Left" ), QgsDecorationItem::BottomLeft );
   cboPlacement->addItem( tr( "Bottom Center" ), QgsDecorationItem::BottomCenter );
   cboPlacement->addItem( tr( "Bottom Right" ), QgsDecorationItem::BottomRight );
-  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( cboPlacement, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     spnHorizontal->setMinimum( cboPlacement->currentData() == QgsDecorationItem::TopCenter || cboPlacement->currentData() == QgsDecorationItem::BottomCenter ? -100 : 0 );
   } );
   cboPlacement->setCurrentIndex( cboPlacement->findData( mDeco.placement() ) );

src/app/devtools/networklogger/qgsnetworkloggernode.cpp

@@ -152,19 +152,19 @@ QList<QAction *> QgsNetworkLoggerRequestGroup::actions( QObject *parent )
 {
   QList<QAction *> res;
   QAction *openUrlAction = new QAction( QObject::tr( "Open URL" ), parent );
-  QObject::connect( openUrlAction, &QAction::triggered, openUrlAction, [this] {
+  QObject::connect( openUrlAction, &QAction::triggered, openUrlAction, [=] {
     QDesktopServices::openUrl( mUrl );
   } );
   res << openUrlAction;
 
   QAction *copyUrlAction = new QAction( QObject::tr( "Copy URL" ), parent );
-  QObject::connect( copyUrlAction, &QAction::triggered, openUrlAction, [this] {
+  QObject::connect( copyUrlAction, &QAction::triggered, openUrlAction, [=] {
     QApplication::clipboard()->setText( mUrl.url() );
   } );
   res << copyUrlAction;
 
   QAction *copyAsCurlAction = new QAction( QObject::tr( "Copy As cURL" ), parent );
-  QObject::connect( copyAsCurlAction, &QAction::triggered, copyAsCurlAction, [this] {
+  QObject::connect( copyAsCurlAction, &QAction::triggered, copyAsCurlAction, [=] {
     QString curlHeaders;
     for ( const QPair<QString, QString> &header : std::as_const( mHeaders ) )
       curlHeaders += QStringLiteral( "-H '%1: %2' " ).arg( header.first, header.second );
@@ -211,7 +211,7 @@ QList<QAction *> QgsNetworkLoggerRequestGroup::actions( QObject *parent )
   res << copyAsCurlAction;
 
   QAction *copyJsonAction = new QAction( QObject::tr( "Copy as JSON" ), parent );
-  QObject::connect( copyJsonAction, &QAction::triggered, openUrlAction, [this] {
+  QObject::connect( copyJsonAction, &QAction::triggered, openUrlAction, [=] {
     const QVariant value = toVariant();
     const QString json = QString::fromStdString( QgsJsonUtils::jsonFromVariant( value ).dump( 2 ) );
     QApplication::clipboard()->setText( json );

src/app/devtools/networklogger/qgsnetworkloggerpanelwidget.cpp

@@ -60,7 +60,7 @@ QgsNetworkLoggerTreeView::QgsNetworkLoggerTreeView( QgsNetworkLogger *logger, QW
       mAutoScroll = false;
   } );
 
-  connect( mLogger, &QAbstractItemModel::rowsInserted, this, [this] {
+  connect( mLogger, &QAbstractItemModel::rowsInserted, this, [=] {
     if ( mLogger->rowCount() > ( QgsNetworkLogger::MAX_LOGGED_REQUESTS * 1.2 ) ) // 20 % more as buffer
     {
       // never trim expanded nodes
@@ -185,11 +185,11 @@ QgsNetworkLoggerPanelWidget::QgsNetworkLoggerPanelWidget( QgsNetworkLogger *logg
   connect( mActionShowSuccessful, &QAction::toggled, mTreeView, &QgsNetworkLoggerTreeView::setShowSuccessful );
   connect( mActionShowCached, &QAction::toggled, mTreeView, &QgsNetworkLoggerTreeView::setShowCached );
   connect( mActionClear, &QAction::triggered, mLogger, &QgsNetworkLogger::clear );
-  connect( mActionRecord, &QAction::toggled, this, [this]( bool enabled ) {
+  connect( mActionRecord, &QAction::toggled, this, [=]( bool enabled ) {
     QgsSettings().setValue( QStringLiteral( "logNetworkRequests" ), enabled, QgsSettings::App );
     mLogger->enableLogging( enabled );
   } );
-  connect( mActionSaveLog, &QAction::triggered, this, [this]() {
+  connect( mActionSaveLog, &QAction::triggered, this, [=]() {
     if ( QMessageBox::warning( this, tr( "Save Network Log" ), tr( "Security warning: network logs may contain sensitive data including usernames or passwords. Treat this log as confidential and be careful who you share it with. Continue?" ), QMessageBox::Yes | QMessageBox::No ) == QMessageBox::No )
       return;
 
@@ -228,7 +228,7 @@ QgsNetworkLoggerPanelWidget::QgsNetworkLoggerPanelWidget( QgsNetworkLogger *logg
 
   mToolbar->addSeparator();
   QCheckBox *disableCacheCheck = new QCheckBox( tr( "Disable cache" ) );
-  connect( disableCacheCheck, &QCheckBox::toggled, this, []( bool checked ) {
+  connect( disableCacheCheck, &QCheckBox::toggled, this, [=]( bool checked ) {
     // note -- we deliberately do NOT store this as a permanent setting in QSettings
     // as it is designed to be a temporary debugging tool only and we don't want
     // users to accidentally leave this enabled and cause unnecessary server load...

src/app/devtools/profiler/qgsprofilerpanelwidget.cpp

@@ -41,7 +41,7 @@ QgsProfilerPanelWidget::QgsProfilerPanelWidget( QgsRuntimeProfiler *profiler, QW
 
   mTreeView->setItemDelegateForColumn( 1, new CostDelegate( static_cast<int>( QgsRuntimeProfilerNode::CustomRole::Elapsed ), static_cast<int>( QgsRuntimeProfilerNode::CustomRole::ParentElapsed ), mTreeView ) );
 
-  connect( mProfiler, &QgsRuntimeProfiler::groupAdded, this, [this]( const QString &group ) {
+  connect( mProfiler, &QgsRuntimeProfiler::groupAdded, this, [=]( const QString &group ) {
     mCategoryComboBox->addItem( QgsRuntimeProfiler::translateGroupName( group ).isEmpty() ? group : QgsRuntimeProfiler::translateGroupName( group ), group );
     if ( mCategoryComboBox->count() == 1 )
     {
@@ -50,7 +50,7 @@ QgsProfilerPanelWidget::QgsProfilerPanelWidget( QgsRuntimeProfiler *profiler, QW
     }
   } );
 
-  connect( mCategoryComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) {
+  connect( mCategoryComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) {
     mProxyModel->setGroup( mCategoryComboBox->currentData().toString() );
   } );
 

src/app/devtools/qgsdevtoolsmodelnode.cpp

@@ -149,7 +149,7 @@ QList<QAction *> QgsDevToolsModelValueNode::actions( QObject *parent )
   QList<QAction *> res;
 
   QAction *copyAction = new QAction( QObject::tr( "Copy" ), parent );
-  QObject::connect( copyAction, &QAction::triggered, copyAction, [this] {
+  QObject::connect( copyAction, &QAction::triggered, copyAction, [=] {
     QApplication::clipboard()->setText( QStringLiteral( "%1: %2" ).arg( mKey, mValue ) );
   } );
 

src/app/devtools/querylogger/qgsdatabasequeryloggernode.cpp

@@ -166,13 +166,13 @@ QList<QAction *> QgsDatabaseQueryLoggerQueryGroup::actions( QObject *parent )
   QList<QAction *> res;
 
   QAction *copyUrlAction = new QAction( QObject::tr( "Copy SQL" ), parent );
-  QObject::connect( copyUrlAction, &QAction::triggered, copyUrlAction, [this] {
+  QObject::connect( copyUrlAction, &QAction::triggered, copyUrlAction, [=] {
     QApplication::clipboard()->setText( mSql );
   } );
   res << copyUrlAction;
 
   QAction *copyJsonAction = new QAction( QObject::tr( "Copy as JSON" ), parent );
-  QObject::connect( copyJsonAction, &QAction::triggered, copyJsonAction, [this] {
+  QObject::connect( copyJsonAction, &QAction::triggered, copyJsonAction, [=] {
     const QVariant value = toVariant();
     const QString json = QString::fromStdString( QgsJsonUtils::jsonFromVariant( value ).dump( 2 ) );
     QApplication::clipboard()->setText( json );

src/app/devtools/querylogger/qgsqueryloggerpanelwidget.cpp

@@ -75,7 +75,7 @@ QgsDatabaseQueryLoggerTreeView::QgsDatabaseQueryLoggerTreeView( QgsAppQueryLogge
       mAutoScroll = false;
   } );
 
-  connect( mLogger, &QAbstractItemModel::rowsInserted, this, [this] {
+  connect( mLogger, &QAbstractItemModel::rowsInserted, this, [=] {
     if ( mLogger->rowCount() > ( QgsAppQueryLogger::MAX_LOGGED_REQUESTS * 1.2 ) ) // 20 % more as buffer
     {
       // never trim expanded nodes
@@ -183,11 +183,11 @@ QgsDatabaseQueryLoggerPanelWidget::QgsDatabaseQueryLoggerPanelWidget( QgsAppQuer
 
   connect( mFilterLineEdit, &QgsFilterLineEdit::textChanged, mTreeView, &QgsDatabaseQueryLoggerTreeView::setFilterString );
   connect( mActionClear, &QAction::triggered, mLogger, &QgsAppQueryLogger::clear );
-  connect( mActionRecord, &QAction::toggled, this, []( bool enabled ) {
+  connect( mActionRecord, &QAction::toggled, this, [=]( bool enabled ) {
     QgsSettings().setValue( QStringLiteral( "logDatabaseQueries" ), enabled, QgsSettings::App );
     QgsApplication::databaseQueryLog()->setEnabled( enabled );
   } );
-  connect( mActionSaveLog, &QAction::triggered, this, [this]() {
+  connect( mActionSaveLog, &QAction::triggered, this, [=]() {
     if ( QMessageBox::warning( this, tr( "Save Database Query Log" ), tr( "Security warning: query logs may contain sensitive data including usernames or passwords. Treat this log as confidential and be careful who you share it with. Continue?" ), QMessageBox::Yes | QMessageBox::No ) == QMessageBox::No )
       return;
 

src/app/dwg/qgsdwgimporter.cpp

@@ -227,7 +227,7 @@ QgsDwgImporter::QgsDwgImporter( const QString &database, const QgsCoordinateRefe
 
   // setup custom debug printer for libdxfrw
   static std::once_flag initialized;
-  std::call_once( initialized, []() {
+  std::call_once( initialized, [=]() {
     DRW::setCustomDebugPrinter( new QgsDrwDebugPrinter( 4 ) );
   } );
 

src/app/elevation/qgselevationprofiletoolmeasure.cpp

@@ -145,12 +145,12 @@ QgsElevationProfileToolMeasure::QgsElevationProfileToolMeasure( QgsElevationProf
   mDialog = new QgsProfileMeasureResultsDialog();
 
   connect( this, &QgsElevationProfileToolMeasure::cleared, mDialog, &QDialog::hide );
-  connect( this, &QgsElevationProfileToolMeasure::measureChanged, mDialog, [this]( double totalDistance, double deltaCurve, double deltaElevation ) {
+  connect( this, &QgsElevationProfileToolMeasure::measureChanged, mDialog, [=]( double totalDistance, double deltaCurve, double deltaElevation ) {
     mDialog->setCrs( mElevationCanvas->crs() );
     mDialog->setMeasures( totalDistance, deltaCurve, deltaElevation );
     mDialog->show();
   } );
-  connect( mDialog, &QgsProfileMeasureResultsDialog::closed, this, [this] {
+  connect( mDialog, &QgsProfileMeasureResultsDialog::closed, this, [=] {
     clear();
   } );
 }

src/app/elevation/qgselevationprofilewidget.cpp

@@ -168,7 +168,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mCanvas->setLockAxisScales( settingLockAxis->value() );
 
   mCanvas->setBackgroundColor( settingBackgroundColor->value() );
-  connect( QgsGui::instance(), &QgsGui::optionsChanged, this, [this] {
+  connect( QgsGui::instance(), &QgsGui::optionsChanged, this, [=] {
     mCanvas->setBackgroundColor( settingBackgroundColor->value() );
   } );
 
@@ -177,7 +177,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mLayerTreeView = new QgsAppElevationProfileLayerTreeView( mLayerTree.get() );
   connect( mLayerTreeView, &QgsAppElevationProfileLayerTreeView::addLayers, this, &QgsElevationProfileWidget::addLayersInternal );
 
-  connect( mLayerTreeView, &QAbstractItemView::doubleClicked, this, [this]( const QModelIndex &index ) {
+  connect( mLayerTreeView, &QAbstractItemView::doubleClicked, this, [=]( const QModelIndex &index ) {
     if ( QgsMapLayer *layer = mLayerTreeView->indexToLayer( index ) )
     {
       QgisApp::instance()->showLayerProperties( layer, QStringLiteral( "mOptsPage_Elevation" ) );
@@ -198,7 +198,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   QAction *showLayerTree = new QAction( tr( "Show Layer Tree" ), this );
   showLayerTree->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mIconLayerTree.svg" ) ) );
   showLayerTree->setCheckable( true );
-  connect( showLayerTree, &QAction::toggled, this, [this]( bool checked ) {
+  connect( showLayerTree, &QAction::toggled, this, [=]( bool checked ) {
     settingShowLayerTree->setValue( checked );
     mLayerTreeView->setVisible( checked );
   } );
@@ -210,7 +210,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mCaptureCurveAction = new QAction( tr( "Capture Curve" ), this );
   mCaptureCurveAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionCaptureLine.svg" ) ) );
   mCaptureCurveAction->setCheckable( true );
-  connect( mCaptureCurveAction, &QAction::triggered, this, [this] {
+  connect( mCaptureCurveAction, &QAction::triggered, this, [=] {
     if ( mCaptureCurveMapTool && mMainCanvas )
     {
       mMainCanvas->setMapTool( mCaptureCurveMapTool.get() );
@@ -221,7 +221,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mCaptureCurveFromFeatureAction = new QAction( tr( "Capture Curve From Feature" ), this );
   mCaptureCurveFromFeatureAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "mActionCaptureCurveFromFeature.svg" ) ) );
   mCaptureCurveFromFeatureAction->setCheckable( true );
-  connect( mCaptureCurveFromFeatureAction, &QAction::triggered, this, [this] {
+  connect( mCaptureCurveFromFeatureAction, &QAction::triggered, this, [=] {
     if ( mCaptureCurveFromFeatureMapTool && mMainCanvas )
     {
       mMainCanvas->setMapTool( mCaptureCurveFromFeatureMapTool.get() );
@@ -241,7 +241,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mNudgeRightAction->setEnabled( false );
   toolBar->addAction( mNudgeRightAction );
 
-  auto createShortcuts = [this]( const QString &objectName, void ( QgsElevationProfileWidget::*slot )() ) {
+  auto createShortcuts = [=]( const QString &objectName, void ( QgsElevationProfileWidget::*slot )() ) {
     if ( QShortcut *sc = QgsGui::shortcutsManager()->shortcutByName( objectName ) )
       connect( sc, &QShortcut::activated, this, slot );
   };
@@ -260,7 +260,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   identifyToolAction->setCheckable( true );
   identifyToolAction->setChecked( true );
   mIdentifyTool->setAction( identifyToolAction );
-  connect( identifyToolAction, &QAction::triggered, mPanTool, [this] { mCanvas->setTool( mIdentifyTool ); } );
+  connect( identifyToolAction, &QAction::triggered, mPanTool, [=] { mCanvas->setTool( mIdentifyTool ); } );
   toolBar->addAction( identifyToolAction );
 
   QAction *panToolAction = new QAction( tr( "Pan" ), this );
@@ -268,21 +268,21 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   panToolAction->setCheckable( true );
   panToolAction->setChecked( false );
   mPanTool->setAction( panToolAction );
-  connect( panToolAction, &QAction::triggered, mPanTool, [this] { mCanvas->setTool( mPanTool ); } );
+  connect( panToolAction, &QAction::triggered, mPanTool, [=] { mCanvas->setTool( mPanTool ); } );
   toolBar->addAction( panToolAction );
 
   QAction *zoomXAxisToolAction = new QAction( tr( "Zoom X Axis" ), this );
   zoomXAxisToolAction->setCheckable( true );
   zoomXAxisToolAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionZoomInXAxis.svg" ) ) );
   mXAxisZoomTool->setAction( zoomXAxisToolAction );
-  connect( zoomXAxisToolAction, &QAction::triggered, mXAxisZoomTool, [this] { mCanvas->setTool( mXAxisZoomTool ); } );
+  connect( zoomXAxisToolAction, &QAction::triggered, mXAxisZoomTool, [=] { mCanvas->setTool( mXAxisZoomTool ); } );
   toolBar->addAction( zoomXAxisToolAction );
 
   QAction *zoomToolAction = new QAction( tr( "Zoom" ), this );
   zoomToolAction->setCheckable( true );
   zoomToolAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionZoomIn.svg" ) ) );
   mZoomTool->setAction( zoomToolAction );
-  connect( zoomToolAction, &QAction::triggered, mZoomTool, [this] { mCanvas->setTool( mZoomTool ); } );
+  connect( zoomToolAction, &QAction::triggered, mZoomTool, [=] { mCanvas->setTool( mZoomTool ); } );
   toolBar->addAction( zoomToolAction );
 
   QAction *resetViewAction = new QAction( tr( "Zoom Full" ), this );
@@ -303,7 +303,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   measureToolAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionMeasure.svg" ) ) );
   measureToolAction->setCheckable( true );
   mMeasureTool->setAction( measureToolAction );
-  connect( measureToolAction, &QAction::triggered, this, [this] {
+  connect( measureToolAction, &QAction::triggered, this, [=] {
     mCanvas->setTool( mMeasureTool.get() );
   } );
   toolBar->addAction( measureToolAction );
@@ -383,7 +383,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
     action->setData( QVariant::fromValue( unit ) );
     action->setCheckable( true );
     action->setActionGroup( unitGroup );
-    connect( action, &QAction::toggled, this, [this, unit]( bool active ) {
+    connect( action, &QAction::toggled, this, [=]( bool active ) {
       if ( active )
       {
         mCanvas->setDistanceUnit( unit );
@@ -391,7 +391,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
     } );
     mDistanceUnitMenu->addAction( action );
   }
-  connect( mDistanceUnitMenu, &QMenu::aboutToShow, this, [this] {
+  connect( mDistanceUnitMenu, &QMenu::aboutToShow, this, [=] {
     for ( QAction *action : mDistanceUnitMenu->actions() )
     {
       if ( action->data().value<Qgis::DistanceUnit>() == mCanvas->distanceUnit() && !action->isChecked() )
@@ -405,7 +405,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   mSettingsAction = new QgsElevationProfileWidgetSettingsAction( mOptionsMenu );
 
   mSettingsAction->toleranceSpinBox()->setValue( settingTolerance->value() );
-  connect( mSettingsAction->toleranceSpinBox(), qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [this]( double value ) {
+  connect( mSettingsAction->toleranceSpinBox(), qOverload<double>( &QDoubleSpinBox::valueChanged ), this, [=]( double value ) {
     settingTolerance->setValue( value );
     createOrUpdateRubberBands();
     scheduleUpdate();
@@ -483,7 +483,7 @@ QgsElevationProfileWidget::QgsElevationProfileWidget( const QString &name )
   QToolButton *toggleButton = mDockableWidgetHelper->createDockUndockToolButton();
   toggleButton->setToolTip( tr( "Dock Elevation Profile View" ) );
   toolBar->addWidget( toggleButton );
-  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [this]() {
+  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [=]() {
     close();
   } );
 
@@ -527,8 +527,8 @@ void QgsElevationProfileWidget::setMainCanvas( QgsMapCanvas *canvas )
 
   mCaptureCurveMapTool = std::make_unique<QgsMapToolProfileCurve>( canvas, QgisApp::instance()->cadDockWidget() );
   mCaptureCurveMapTool->setAction( mCaptureCurveAction );
-  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::curveCaptured, this, [this]( const QgsGeometry &curve ) { setProfileCurve( curve, true ); } );
-  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::captureStarted, this, [this] {
+  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::curveCaptured, this, [=]( const QgsGeometry &curve ) { setProfileCurve( curve, true ); } );
+  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::captureStarted, this, [=] {
     // if capturing a new curve, we just hide the existing rubber band -- if the user cancels the new curve digitizing then we'll
     // re-show the old curve rubber band
     if ( mRubberBand )
@@ -538,7 +538,7 @@ void QgsElevationProfileWidget::setMainCanvas( QgsMapCanvas *canvas )
     if ( mMapPointRubberBand )
       mMapPointRubberBand->hide();
   } );
-  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::captureCanceled, this, [this] {
+  connect( mCaptureCurveMapTool.get(), &QgsMapToolProfileCurve::captureCanceled, this, [=] {
     if ( mRubberBand )
       mRubberBand->show();
     if ( mToleranceRubberBand )
@@ -549,7 +549,7 @@ void QgsElevationProfileWidget::setMainCanvas( QgsMapCanvas *canvas )
 
   mCaptureCurveFromFeatureMapTool = std::make_unique<QgsMapToolProfileCurveFromFeature>( canvas );
   mCaptureCurveFromFeatureMapTool->setAction( mCaptureCurveFromFeatureAction );
-  connect( mCaptureCurveFromFeatureMapTool.get(), &QgsMapToolProfileCurveFromFeature::curveCaptured, this, [this]( const QgsGeometry &curve ) { setProfileCurve( curve, true ); } );
+  connect( mCaptureCurveFromFeatureMapTool.get(), &QgsMapToolProfileCurveFromFeature::curveCaptured, this, [=]( const QgsGeometry &curve ) { setProfileCurve( curve, true ); } );
 
   mMapPointRubberBand.reset( new QgsRubberBand( canvas, Qgis::GeometryType::Point ) );
   mMapPointRubberBand->setZValue( 1000 );
@@ -561,7 +561,7 @@ void QgsElevationProfileWidget::setMainCanvas( QgsMapCanvas *canvas )
   mMapPointRubberBand->hide();
 
   mCanvas->setDistanceUnit( mMainCanvas->mapSettings().destinationCrs().mapUnits() );
-  connect( mMainCanvas, &QgsMapCanvas::destinationCrsChanged, this, [this] {
+  connect( mMainCanvas, &QgsMapCanvas::destinationCrsChanged, this, [=] {
     mCanvas->setDistanceUnit( mMainCanvas->mapSettings().destinationCrs().mapUnits() );
   } );
 }
@@ -655,7 +655,7 @@ void QgsElevationProfileWidget::onTotalPendingJobsCountChanged( int count )
       mJobProgressBarTimer.setSingleShot( true );
       mJobProgressBarTimer.setInterval( 500 );
       disconnect( mJobProgressBarTimerConnection );
-      mJobProgressBarTimerConnection = connect( &mJobProgressBarTimer, &QTimer::timeout, this, [this]() {
+      mJobProgressBarTimerConnection = connect( &mJobProgressBarTimer, &QTimer::timeout, this, [=]() {
         mProgressPendingJobs->setVisible( true );
       } );
       mJobProgressBarTimer.start();

src/app/elevation/qgsmaptoolprofilecurve.cpp

@@ -23,7 +23,7 @@
 QgsMapToolProfileCurve::QgsMapToolProfileCurve( QgsMapCanvas *canvas, QgsAdvancedDigitizingDockWidget *cadDockWidget )
   : QgsMapToolCapture( canvas, cadDockWidget, CaptureMode::CaptureLine )
 {
-  connect( canvas, &QgsMapCanvas::mapToolSet, this, [this]( QgsMapTool *tool, QgsMapTool * ) {
+  connect( canvas, &QgsMapCanvas::mapToolSet, this, [=]( QgsMapTool *tool, QgsMapTool * ) {
     if ( tool != this )
       mPreviousTool = tool;
   } );

src/app/georeferencer/qgsgcplistwidget.cpp

@@ -57,7 +57,7 @@ QgsGCPListWidget::QgsGCPListWidget( QWidget *parent )
   connect( this, &QAbstractItemView::clicked, this, &QgsGCPListWidget::itemClicked );
   connect( this, &QWidget::customContextMenuRequested, this, &QgsGCPListWidget::showContextMenu );
 
-  connect( mGCPListModel, &QgsGCPListModel::pointEnabled, this, [this]( QgsGeorefDataPoint *point, int row ) {
+  connect( mGCPListModel, &QgsGCPListModel::pointEnabled, this, [=]( QgsGeorefDataPoint *point, int row ) {
     emit pointEnabled( point, row );
     adjustTableContent();
     return;
@@ -181,7 +181,7 @@ void QgsGCPListWidget::showContextMenu( QPoint p )
   setCurrentIndex( index );
 
   QAction *jumpToPointAction = new QAction( tr( "Recenter" ), this );
-  connect( jumpToPointAction, &QAction::triggered, this, [this] {
+  connect( jumpToPointAction, &QAction::triggered, this, [=] {
     const QModelIndex sourceIndex = static_cast<const QSortFilterProxyModel *>( model() )->mapToSource( currentIndex() );
     mPrevRow = sourceIndex.row();
     mPrevColumn = sourceIndex.column();

src/app/georeferencer/qgsgeorefmainwindow.cpp

@@ -874,10 +874,10 @@ void QgsGeoreferencerMainWindow::showCoordDialog( const QgsPointXY &sourceCoordi
   {
     mNewlyAddedPoint = new QgsGeorefDataPoint( mCanvas, QgisApp::instance()->mapCanvas(), sourceCoordinates, QgsPointXY(), QgsCoordinateReferenceSystem(), true );
     mMapCoordsDialog = new QgsMapCoordsDialog( QgisApp::instance()->mapCanvas(), mNewlyAddedPoint, lastProjection, this );
-    connect( mMapCoordsDialog, &QgsMapCoordsDialog::pointAdded, this, [this]( const QgsPointXY &sourceLayerCoordinate, const QgsPointXY &destinationCoordinate, const QgsCoordinateReferenceSystem &destinationCrs ) {
+    connect( mMapCoordsDialog, &QgsMapCoordsDialog::pointAdded, this, [=]( const QgsPointXY &sourceLayerCoordinate, const QgsPointXY &destinationCoordinate, const QgsCoordinateReferenceSystem &destinationCrs ) {
       addPoint( sourceLayerCoordinate, destinationCoordinate, destinationCrs );
     } );
-    connect( mMapCoordsDialog, &QObject::destroyed, this, [this] {
+    connect( mMapCoordsDialog, &QObject::destroyed, this, [=] {
       delete mNewlyAddedPoint;
       mNewlyAddedPoint = nullptr;
     } );
@@ -1102,9 +1102,9 @@ void QgsGeoreferencerMainWindow::createActions()
   connect( mActionReset, &QAction::triggered, this, &QgsGeoreferencerMainWindow::reset );
 
   mActionOpenRaster->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionAddRasterLayer.svg" ) ) );
-  connect( mActionOpenRaster, &QAction::triggered, this, [this] { openLayer( Qgis::LayerType::Raster ); } );
+  connect( mActionOpenRaster, &QAction::triggered, this, [=] { openLayer( Qgis::LayerType::Raster ); } );
 
-  connect( mActionOpenVector, &QAction::triggered, this, [this] { openLayer( Qgis::LayerType::Vector ); } );
+  connect( mActionOpenVector, &QAction::triggered, this, [=] { openLayer( Qgis::LayerType::Vector ); } );
 
   mActionStartGeoref->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionStart.svg" ) ) );
   connect( mActionStartGeoref, &QAction::triggered, this, &QgsGeoreferencerMainWindow::georeference );
@@ -1211,7 +1211,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
   mAdvancedDigitizingDockWidget = new QgsAdvancedDigitizingDockWidget( mCanvas );
   addDockWidget( Qt::LeftDockWidgetArea, mAdvancedDigitizingDockWidget );
   mAdvancedDigitizingDockWidget->hide();
-  connect( mActionAdvancedDigitizingDock, &QAction::triggered, mAdvancedDigitizingDockWidget, [this]( bool checked ) { mAdvancedDigitizingDockWidget->setVisible( checked ); } );
+  connect( mActionAdvancedDigitizingDock, &QAction::triggered, mAdvancedDigitizingDockWidget, [=]( bool checked ) { mAdvancedDigitizingDockWidget->setVisible( checked ); } );
 
   QgsSnappingConfig snappingConfig;
   snappingConfig.setMode( Qgis::SnappingMode::AllLayers );
@@ -1247,7 +1247,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
 
   mSnappingTypeButton->setMenu( typeMenu );
   mSnappingTypeButton->setObjectName( QStringLiteral( "SnappingTypeButton" ) );
-  connect( mSnappingTypeButton, &QToolButton::triggered, this, [this]( QAction *action ) {
+  connect( mSnappingTypeButton, &QToolButton::triggered, this, [=]( QAction *action ) {
     QgsSnappingConfig snappingConfig = mSnappingUtils->config();
     unsigned int type = static_cast<int>( snappingConfig.typeFlag() );
     const Qgis::SnappingTypes actionFlag = static_cast<Qgis::SnappingTypes>( action->data().toInt() );
@@ -1256,7 +1256,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
     mSnappingUtils->setConfig( snappingConfig );
   } );
 
-  connect( mSnappingTypeButton, &QToolButton::clicked, this, [this]( bool checked ) {
+  connect( mSnappingTypeButton, &QToolButton::clicked, this, [=]( bool checked ) {
     QgsSnappingConfig snappingConfig = mSnappingUtils->config();
     snappingConfig.setEnabled( checked );
     mSnappingUtils->setConfig( snappingConfig );
@@ -1285,7 +1285,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
   mToolDeletePoint->setAction( mActionDeletePoint );
   connect( mToolDeletePoint, &QgsGeorefToolDeletePoint::hoverPoint, this, &QgsGeoreferencerMainWindow::hoverPoint );
   connect( mToolDeletePoint, &QgsGeorefToolDeletePoint::deletePoint, this, &QgsGeoreferencerMainWindow::deletePoint );
-  connect( mToolDeletePoint, &QgsMapTool::deactivated, this, [this] {
+  connect( mToolDeletePoint, &QgsMapTool::deactivated, this, [=] {
     if ( mHoveredPoint )
     {
       mHoveredPoint->setHovered( false );
@@ -1299,7 +1299,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
   connect( mToolMovePoint, &QgsGeorefToolMovePoint::pointMoving, this, &QgsGeoreferencerMainWindow::movePoint );
   connect( mToolMovePoint, &QgsGeorefToolMovePoint::pointEndMove, this, &QgsGeoreferencerMainWindow::releasePoint );
   connect( mToolMovePoint, &QgsGeorefToolMovePoint::pointCancelMove, this, &QgsGeoreferencerMainWindow::cancelPoint );
-  connect( mToolMovePoint, &QgsMapTool::deactivated, this, [this] {
+  connect( mToolMovePoint, &QgsMapTool::deactivated, this, [=] {
     mMovingPoint = nullptr;
     if ( mHoveredPoint )
     {
@@ -1315,7 +1315,7 @@ void QgsGeoreferencerMainWindow::createMapCanvas()
   connect( mToolMovePointQgis, &QgsGeorefToolMovePoint::pointMoving, this, &QgsGeoreferencerMainWindow::movePoint );
   connect( mToolMovePointQgis, &QgsGeorefToolMovePoint::pointEndMove, this, &QgsGeoreferencerMainWindow::releasePoint );
   connect( mToolMovePointQgis, &QgsGeorefToolMovePoint::pointCancelMove, this, &QgsGeoreferencerMainWindow::cancelPoint );
-  connect( mToolMovePointQgis, &QgsMapTool::deactivated, this, [this] {
+  connect( mToolMovePointQgis, &QgsMapTool::deactivated, this, [=] {
     mMovingPointQgis = nullptr;
     if ( mHoveredPoint )
     {

src/app/georeferencer/qgstransformsettingsdialog.cpp

@@ -76,7 +76,7 @@ QgsTransformSettingsDialog::QgsTransformSettingsDialog( Qgis::LayerType type, co
   outputFile->setDialogTitle( tr( "Destination File" ) );
   const QString lastDestinationFolder = settingLastDestinationFolder->value();
   outputFile->setDefaultRoot( lastDestinationFolder.isEmpty() ? QDir::homePath() : lastDestinationFolder );
-  connect( outputFile, &QgsFileWidget::fileChanged, this, [outputFile] {
+  connect( outputFile, &QgsFileWidget::fileChanged, this, [=] {
     settingLastDestinationFolder->setValue( QFileInfo( outputFile->filePath() ).absolutePath() );
   } );
 
@@ -85,7 +85,7 @@ QgsTransformSettingsDialog::QgsTransformSettingsDialog( Qgis::LayerType type, co
   mPdfMap->setDialogTitle( tr( "Save Map File As" ) );
   const QString lastPdfFolder = settingLastPdfFolder->value();
   mPdfMap->setDefaultRoot( lastPdfFolder.isEmpty() ? QDir::homePath() : lastPdfFolder );
-  connect( mPdfMap, &QgsFileWidget::fileChanged, this, [this] {
+  connect( mPdfMap, &QgsFileWidget::fileChanged, this, [=] {
     settingLastPdfFolder->setValue( QFileInfo( mPdfMap->filePath() ).absolutePath() );
   } );
 
@@ -93,7 +93,7 @@ QgsTransformSettingsDialog::QgsTransformSettingsDialog( Qgis::LayerType type, co
   mPdfReport->setFilter( tr( "PDF files" ) + " (*.pdf *.PDF)" );
   mPdfReport->setDialogTitle( tr( "Save Report File As" ) );
   mPdfReport->setDefaultRoot( lastPdfFolder.isEmpty() ? QDir::homePath() : lastPdfFolder );
-  connect( mPdfReport, &QgsFileWidget::fileChanged, this, [this] {
+  connect( mPdfReport, &QgsFileWidget::fileChanged, this, [=] {
     settingLastPdfFolder->setValue( QFileInfo( mPdfMap->filePath() ).absolutePath() );
   } );
 

src/app/gps/qgsappgpsconnection.cpp

@@ -241,7 +241,7 @@ void QgsAppGpsConnection::showGpsConnectFailureWarning( const QString &message )
   QgisApp::instance()->statusBarIface()->clearMessage();
   mConnectionMessageItem = QgisApp::instance()->messageBar()->createMessage( QString(), message );
   QPushButton *configureButton = new QPushButton( tr( "Configure Device…" ) );
-  connect( configureButton, &QPushButton::clicked, configureButton, [] {
+  connect( configureButton, &QPushButton::clicked, configureButton, [=] {
     QgisApp::instance()->showOptionsDialog( QgisApp::instance(), QStringLiteral( "mGpsOptions" ) );
   } );
   mConnectionMessageItem->layout()->addWidget( configureButton );

src/app/gps/qgsappgpsdigitizing.cpp

@@ -125,10 +125,10 @@ QgsAppGpsDigitizing::QgsAppGpsDigitizing( QgsAppGpsConnection *connection, QgsMa
   QgsGui::mapLayerActionRegistry()->addMapLayerAction( mUpdateGpsDetailsAction );
 
   mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, QgsProject::instance() );
-  connect( mCanvas, &QgsMapCanvas::destinationCrsChanged, this, [this] {
+  connect( mCanvas, &QgsMapCanvas::destinationCrsChanged, this, [=] {
     mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, QgsProject::instance() );
   } );
-  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [=] {
     setTransformContext( QgsProject::instance()->transformContext() );
     mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, transformContext() );
   } );
@@ -136,7 +136,7 @@ QgsAppGpsDigitizing::QgsAppGpsDigitizing( QgsAppGpsConnection *connection, QgsMa
 
   setEllipsoid( QgsProject::instance()->ellipsoid() );
 
-  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [=] {
     setEllipsoid( QgsProject::instance()->ellipsoid() );
   } );
 
@@ -146,13 +146,13 @@ QgsAppGpsDigitizing::QgsAppGpsDigitizing( QgsAppGpsConnection *connection, QgsMa
   connect( QgsGui::instance(), &QgsGui::optionsChanged, this, &QgsAppGpsDigitizing::gpsSettingsChanged );
   gpsSettingsChanged();
 
-  connect( QgisApp::instance(), &QgisApp::activeLayerChanged, this, []( QgsMapLayer *layer ) {
+  connect( QgisApp::instance(), &QgisApp::activeLayerChanged, this, [=]( QgsMapLayer *layer ) {
     if ( QgsProject::instance()->gpsSettings()->destinationFollowsActiveLayer() )
     {
       QgsProject::instance()->gpsSettings()->setDestinationLayer( qobject_cast<QgsVectorLayer *>( layer ) );
     }
   } );
-  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::destinationFollowsActiveLayerChanged, this, []( bool enabled ) {
+  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::destinationFollowsActiveLayerChanged, this, [=]( bool enabled ) {
     if ( enabled )
     {
       QgsProject::instance()->gpsSettings()->setDestinationLayer( qobject_cast<QgsVectorLayer *>( QgisApp::instance()->activeLayer() ) );
@@ -164,7 +164,7 @@ QgsAppGpsDigitizing::QgsAppGpsDigitizing( QgsAppGpsConnection *connection, QgsMa
   }
 
   setAutomaticallyAddTrackVertices( QgsProject::instance()->gpsSettings()->automaticallyAddTrackVertices() );
-  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::automaticallyAddTrackVerticesChanged, this, [this]( bool enabled ) {
+  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::automaticallyAddTrackVerticesChanged, this, [=]( bool enabled ) {
     setAutomaticallyAddTrackVertices( enabled );
   } );
 

src/app/gps/qgsappgpslogging.cpp

@@ -60,11 +60,11 @@ QgsAppGpsLogging::QgsAppGpsLogging( QgsAppGpsConnection *connection, QObject *pa
   : QObject( parent )
   , mConnection( connection )
 {
-  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [=] {
     if ( mGpkgLogger )
       mGpkgLogger->setTransformContext( QgsProject::instance()->transformContext() );
   } );
-  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [=] {
     if ( mGpkgLogger )
       mGpkgLogger->setEllipsoid( QgsProject::instance()->ellipsoid() );
   } );
@@ -72,7 +72,7 @@ QgsAppGpsLogging::QgsAppGpsLogging( QgsAppGpsConnection *connection, QObject *pa
   connect( mConnection, &QgsAppGpsConnection::connected, this, &QgsAppGpsLogging::gpsConnected );
   connect( mConnection, &QgsAppGpsConnection::disconnected, this, &QgsAppGpsLogging::gpsDisconnected );
 
-  connect( QgsGui::instance(), &QgsGui::optionsChanged, this, [this] {
+  connect( QgsGui::instance(), &QgsGui::optionsChanged, this, [=] {
     if ( mGpkgLogger )
       mGpkgLogger->updateGpsSettings();
   } );

src/app/gps/qgsappgpssettingsmenu.cpp

@@ -101,7 +101,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
   mShowLocationMarkerAction = new QAction( tr( "Show Location Marker" ), this );
   mShowLocationMarkerAction->setCheckable( true );
   mShowLocationMarkerAction->setChecked( showLocationMarker );
-  connect( mShowLocationMarkerAction, &QAction::toggled, this, [this]( bool checked ) {
+  connect( mShowLocationMarkerAction, &QAction::toggled, this, [=]( bool checked ) {
     emit locationMarkerToggled( checked );
     QgsGpsMarker::settingShowLocationMarker->setValue( checked );
   } );
@@ -111,7 +111,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
   mShowBearingLineAction = new QAction( tr( "Show Bearing Line" ), this );
   mShowBearingLineAction->setCheckable( true );
   mShowBearingLineAction->setChecked( showBearingLine );
-  connect( mShowBearingLineAction, &QAction::toggled, this, [this]( bool checked ) {
+  connect( mShowBearingLineAction, &QAction::toggled, this, [=]( bool checked ) {
     emit bearingLineToggled( checked );
     QgsGpsCanvasBridge::settingShowBearingLine->setValue( checked );
   } );
@@ -122,7 +122,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
   mRotateMapAction = new QAction( tr( "Rotate Map to Match GPS Direction" ), this );
   mRotateMapAction->setCheckable( true );
   mRotateMapAction->setChecked( rotateMap );
-  connect( mRotateMapAction, &QAction::toggled, this, [this]( bool checked ) {
+  connect( mRotateMapAction, &QAction::toggled, this, [=]( bool checked ) {
     QgsGpsCanvasBridge::settingRotateMap->setValue( checked );
     emit rotateMapToggled( checked );
   } );
@@ -148,7 +148,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
       break;
   }
 
-  connect( mRadioAlwaysRecenter, &QRadioButton::toggled, this, [this]( bool checked ) {
+  connect( mRadioAlwaysRecenter, &QRadioButton::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       QgsGpsCanvasBridge::settingMapCenteringMode->setValue( Qgis::MapRecenteringMode::Always );
@@ -156,7 +156,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
     }
   } );
 
-  connect( mRadioRecenterWhenOutside, &QRadioButton::toggled, this, [this]( bool checked ) {
+  connect( mRadioRecenterWhenOutside, &QRadioButton::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       QgsGpsCanvasBridge::settingMapCenteringMode->setValue( Qgis::MapRecenteringMode::WhenOutsideVisibleExtent );
@@ -164,7 +164,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
     }
   } );
 
-  connect( mRadioNeverRecenter, &QRadioButton::toggled, this, [this]( bool checked ) {
+  connect( mRadioNeverRecenter, &QRadioButton::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       QgsGpsCanvasBridge::settingMapCenteringMode->setValue( Qgis::MapRecenteringMode::Never );
@@ -180,7 +180,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
   mAutoAddTrackVerticesAction = new QAction( tr( "Automatically Add Track Vertices" ), this );
   mAutoAddTrackVerticesAction->setCheckable( true );
   mAutoAddTrackVerticesAction->setChecked( QgsProject::instance()->gpsSettings()->automaticallyAddTrackVertices() );
-  connect( mAutoAddTrackVerticesAction, &QAction::toggled, this, []( bool checked ) {
+  connect( mAutoAddTrackVerticesAction, &QAction::toggled, this, [=]( bool checked ) {
     if ( checked != QgsProject::instance()->gpsSettings()->automaticallyAddTrackVertices() )
     {
       QgsProject::instance()->gpsSettings()->setAutomaticallyAddTrackVertices( checked );
@@ -194,7 +194,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
   mAutoSaveAddedFeatureAction = new QAction( tr( "Automatically Save Added Feature" ), this );
   mAutoSaveAddedFeatureAction->setCheckable( true );
   mAutoSaveAddedFeatureAction->setChecked( QgsProject::instance()->gpsSettings()->automaticallyCommitFeatures() );
-  connect( mAutoSaveAddedFeatureAction, &QAction::toggled, this, []( bool checked ) {
+  connect( mAutoSaveAddedFeatureAction, &QAction::toggled, this, [=]( bool checked ) {
     if ( checked != QgsProject::instance()->gpsSettings()->automaticallyCommitFeatures() )
     {
       QgsProject::instance()->gpsSettings()->setAutomaticallyCommitFeatures( checked );
@@ -217,7 +217,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
 
   mActionGpkgLog = new QAction( tr( "Log to GeoPackage/Spatialite…" ), this );
   mActionGpkgLog->setCheckable( true );
-  connect( mActionGpkgLog, &QAction::toggled, this, [this]( bool checked ) {
+  connect( mActionGpkgLog, &QAction::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       const QString lastGpkgLog = QgsAppGpsLogging::settingLastGpkgLog->value();
@@ -246,7 +246,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
 
   mActionNmeaLog = new QAction( tr( "Log NMEA Sentences…" ), this );
   mActionNmeaLog->setCheckable( true );
-  connect( mActionNmeaLog, &QAction::toggled, this, [this]( bool checked ) {
+  connect( mActionNmeaLog, &QAction::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       const QString lastLogFolder = QgsAppGpsLogging::settingLastLogFolder->value();
@@ -277,7 +277,7 @@ QgsAppGpsSettingsMenu::QgsAppGpsSettingsMenu( QWidget *parent )
 
   QAction *settingsAction = new QAction( tr( "GPS Settings…" ), this );
   settingsAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionOptions.svg" ) ) );
-  connect( settingsAction, &QAction::triggered, this, [] {
+  connect( settingsAction, &QAction::triggered, this, [=] {
     QgisApp::instance()->showOptionsDialog( QgisApp::instance(), QStringLiteral( "mGpsOptions" ) );
   } );
 
@@ -344,7 +344,7 @@ void QgsAppGpsSettingsMenu::timeStampMenuAboutToShow()
       foundPreviousField = true;
       fieldAction->setChecked( currentTimeStampField == fieldName );
     }
-    connect( fieldAction, &QAction::triggered, this, [fieldName]() {
+    connect( fieldAction, &QAction::triggered, this, [=]() {
       if ( QgsProject::instance()->gpsSettings()->destinationTimeStampField() != fieldName )
       {
         QgsProject::instance()->gpsSettings()->setDestinationTimeStampField( QgsProject::instance()->gpsSettings()->destinationLayer(), fieldName );

src/app/gps/qgsgpscanvasbridge.cpp

@@ -59,16 +59,16 @@ QgsGpsCanvasBridge::QgsGpsCanvasBridge( QgsAppGpsConnection *connection, QgsMapC
   connect( QgsGui::instance(), &QgsGui::optionsChanged, this, &QgsGpsCanvasBridge::gpsSettingsChanged );
 
   mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, QgsProject::instance() );
-  connect( mCanvas, &QgsMapCanvas::destinationCrsChanged, this, [this] {
+  connect( mCanvas, &QgsMapCanvas::destinationCrsChanged, this, [=] {
     mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, QgsProject::instance() );
   } );
-  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::transformContextChanged, this, [=] {
     mCanvasToWgs84Transform = QgsCoordinateTransform( mCanvas->mapSettings().destinationCrs(), mWgs84CRS, QgsProject::instance() );
   } );
 
   mDistanceCalculator.setEllipsoid( QgsProject::instance()->ellipsoid() );
   mDistanceCalculator.setSourceCrs( mWgs84CRS, QgsProject::instance()->transformContext() );
-  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::ellipsoidChanged, this, [=] {
     mDistanceCalculator.setEllipsoid( QgsProject::instance()->ellipsoid() );
   } );
 
@@ -76,7 +76,7 @@ QgsGpsCanvasBridge::QgsGpsCanvasBridge( QgsAppGpsConnection *connection, QgsMapC
   connect( mCanvas, &QgsMapCanvas::tapAndHoldGestureOccurred, this, &QgsGpsCanvasBridge::tapAndHold );
 
   mBearingNumericFormat.reset( QgsLocalDefaultSettings::bearingFormat() );
-  connect( QgsProject::instance()->displaySettings(), &QgsProjectDisplaySettings::bearingFormatChanged, this, [this] {
+  connect( QgsProject::instance()->displaySettings(), &QgsProjectDisplaySettings::bearingFormatChanged, this, [=] {
     mBearingNumericFormat.reset( QgsProject::instance()->displaySettings()->bearingFormat()->clone() );
     updateGpsDistanceStatusMessage( false );
   } );

src/app/gps/qgsgpsinformationwidget.cpp

@@ -188,7 +188,7 @@ QgsGpsInformationWidget::QgsGpsInformationWidget( QgsAppGpsConnection *connectio
   connect( mConnection, &QgsAppGpsConnection::stateChanged, this, &QgsGpsInformationWidget::displayGPSInformation );
   connect( mConnection, &QgsAppGpsConnection::fixStatusChanged, this, &QgsGpsInformationWidget::setStatusIndicator );
 
-  connect( mConnection, &QgsAppGpsConnection::statusChanged, this, [this]( Qgis::DeviceConnectionStatus status ) {
+  connect( mConnection, &QgsAppGpsConnection::statusChanged, this, [=]( Qgis::DeviceConnectionStatus status ) {
     switch ( status )
     {
       case Qgis::DeviceConnectionStatus::Disconnected:

src/app/gps/qgsgpstoolbar.cpp

@@ -56,7 +56,7 @@ QgsGpsToolBar::QgsGpsToolBar( QgsAppGpsConnection *connection, QgsMapCanvas *can
   mConnectAction->setCheckable( true );
   addAction( mConnectAction );
 
-  connect( mConnectAction, &QAction::toggled, this, [this]( bool connect ) {
+  connect( mConnectAction, &QAction::toggled, this, [=]( bool connect ) {
     if ( connect )
       mConnection->connectGps();
     else
@@ -68,7 +68,7 @@ QgsGpsToolBar::QgsGpsToolBar( QgsAppGpsConnection *connection, QgsMapCanvas *can
   mRecenterAction->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/gpsicons/mActionRecenter.svg" ) ) );
   mRecenterAction->setEnabled( false );
 
-  connect( mRecenterAction, &QAction::triggered, this, [this] {
+  connect( mRecenterAction, &QAction::triggered, this, [=] {
     if ( mConnection->lastValidLocation().isEmpty() )
       return;
 
@@ -143,7 +143,7 @@ QgsGpsToolBar::QgsGpsToolBar( QgsAppGpsConnection *connection, QgsMapCanvas *can
   mCreateFeatureAction->setEnabled( false );
   mAddTrackVertexAction->setEnabled( false );
   mResetFeatureAction->setEnabled( false );
-  connect( mConnection, &QgsAppGpsConnection::statusChanged, this, [this]( Qgis::DeviceConnectionStatus status ) {
+  connect( mConnection, &QgsAppGpsConnection::statusChanged, this, [=]( Qgis::DeviceConnectionStatus status ) {
     switch ( status )
     {
       case Qgis::DeviceConnectionStatus::Disconnected:
@@ -185,7 +185,7 @@ QgsGpsToolBar::QgsGpsToolBar( QgsAppGpsConnection *connection, QgsMapCanvas *can
 
   connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::destinationLayerChanged, this, &QgsGpsToolBar::destinationLayerChanged );
 
-  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::automaticallyAddTrackVerticesChanged, this, [this]( bool enabled ) { setAddVertexButtonEnabled( !enabled ); } );
+  connect( QgsProject::instance()->gpsSettings(), &QgsProjectGpsSettings::automaticallyAddTrackVerticesChanged, this, [=]( bool enabled ) { setAddVertexButtonEnabled( !enabled ); } );
   setAddVertexButtonEnabled( !QgsProject::instance()->gpsSettings()->automaticallyAddTrackVertices() );
 
   adjustSize();
@@ -408,7 +408,7 @@ void QgsGpsToolBar::destinationMenuAboutToShow()
   followAction->setCheckable( true );
   followAction->setChecked( QgsProject::instance()->gpsSettings()->destinationFollowsActiveLayer() );
 
-  connect( followAction, &QAction::toggled, this, []( bool checked ) {
+  connect( followAction, &QAction::toggled, this, [=]( bool checked ) {
     if ( checked && !QgsProject::instance()->gpsSettings()->destinationFollowsActiveLayer() )
     {
       QgsProject::instance()->gpsSettings()->setDestinationFollowsActiveLayer( true );
@@ -431,7 +431,7 @@ void QgsGpsToolBar::destinationMenuAboutToShow()
     if ( actionLayerId == currentLayerId && !QgsProject::instance()->gpsSettings()->destinationFollowsActiveLayer() )
       layerAction->setChecked( true );
 
-    connect( layerAction, &QAction::toggled, this, [actionLayerId]( bool checked ) {
+    connect( layerAction, &QAction::toggled, this, [=]( bool checked ) {
       if ( checked )
       {
         QgsVectorLayer *layer = qobject_cast<QgsVectorLayer *>( QgsProject::instance()->mapLayer( actionLayerId ) );
@@ -475,7 +475,7 @@ void QgsGpsToolBar::createLocationWidget()
     showComponentAction->setChecked( visibleComponents & component );
     locationMenu->addAction( showComponentAction );
 
-    connect( showComponentAction, &QAction::toggled, this, [this, component]( bool checked ) {
+    connect( showComponentAction, &QAction::toggled, this, [=]( bool checked ) {
       const Qgis::GpsInformationComponents currentVisibleComponents = settingShowInToolbar->value();
       if ( checked )
       {

src/app/layout/qgslayout3dmapwidget.cpp

@@ -67,13 +67,13 @@ QgsLayout3DMapWidget::QgsLayout3DMapWidget( QgsLayoutItem3DMap *map3D )
 
   mMenu3DCanvases = new QMenu( this );
   mCopySettingsButton->setMenu( mMenu3DCanvases );
-  _prepare3DViewsMenu( mMenu3DCanvases, this, [this]( Qgs3DMapCanvasWidget *widget ) {
+  _prepare3DViewsMenu( mMenu3DCanvases, this, [=]( Qgs3DMapCanvasWidget *widget ) {
     copy3DMapSettings( widget );
   } );
 
   mMenu3DCanvasesPose = new QMenu( this );
   mPoseFromViewButton->setMenu( mMenu3DCanvasesPose );
-  _prepare3DViewsMenu( mMenu3DCanvasesPose, this, [this]( Qgs3DMapCanvasWidget *widget ) { copyCameraPose( widget ); } );
+  _prepare3DViewsMenu( mMenu3DCanvasesPose, this, [=]( Qgs3DMapCanvasWidget *widget ) { copyCameraPose( widget ); } );
 
   QList<QgsDoubleSpinBox *> lst;
   lst << mCenterXSpinBox << mCenterYSpinBox << mCenterZSpinBox << mDistanceToCenterSpinBox << mPitchAngleSpinBox << mHeadingAngleSpinBox;

src/app/layout/qgslayoutdesignerdialog.cpp

@@ -328,7 +328,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   QgsGui::enableAutoGeometryRestore( this );
 
   mScreenHelper = new QgsScreenHelper( this );
-  connect( mScreenHelper, &QgsScreenHelper::screenDpiChanged, this, [this]( double ) {
+  connect( mScreenHelper, &QgsScreenHelper::screenDpiChanged, this, [=]( double ) {
     updateStatusZoom();
   } );
 
@@ -418,7 +418,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mActionPageSetup->setVisible( false );
 #endif
 
-  connect( mActionOptions, &QAction::triggered, this, [this] {
+  connect( mActionOptions, &QAction::triggered, this, [=] {
     QgisApp::instance()->showOptionsDialog( this, QStringLiteral( "mOptionsPageComposer" ) );
   } );
 
@@ -448,12 +448,12 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
 
   mDynamicTextMenu = new QMenu( tr( "Add Dynamic Text" ), this );
 
-  connect( mDynamicTextMenu, &QMenu::aboutToShow, this, [this] {
+  connect( mDynamicTextMenu, &QMenu::aboutToShow, this, [=] {
     mDynamicTextMenu->clear();
     if ( mLayout )
     {
       // we need to rebuild this on each show, as the content varies depending on other available items...
-      QgsLayoutLabelWidget::buildInsertDynamicTextMenu( mLayout, mDynamicTextMenu, [this]( const QString &expression ) {
+      QgsLayoutLabelWidget::buildInsertDynamicTextMenu( mLayout, mDynamicTextMenu, [=]( const QString &expression ) {
         activateNewItemCreationTool( QgsGui::layoutItemGuiRegistry()->metadataIdForItemType( QgsLayoutItemRegistry::LayoutLabel ), false );
         QVariantMap properties;
         properties.insert( QStringLiteral( "expression" ), expression );
@@ -574,28 +574,28 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mPanTool = new QgsLayoutViewToolPan( mView );
   mPanTool->setAction( mActionPan );
   mToolsActionGroup->addAction( mActionPan );
-  connect( mActionPan, &QAction::triggered, mPanTool, [this] { mView->setTool( mPanTool ); } );
+  connect( mActionPan, &QAction::triggered, mPanTool, [=] { mView->setTool( mPanTool ); } );
   mZoomTool = new QgsLayoutViewToolZoom( mView );
   mZoomTool->setAction( mActionZoomTool );
   mToolsActionGroup->addAction( mActionZoomTool );
-  connect( mActionZoomTool, &QAction::triggered, mZoomTool, [this] { mView->setTool( mZoomTool ); } );
+  connect( mActionZoomTool, &QAction::triggered, mZoomTool, [=] { mView->setTool( mZoomTool ); } );
   mSelectTool = new QgsLayoutViewToolSelect( mView );
   mSelectTool->setAction( mActionSelectMoveItem );
   mToolsActionGroup->addAction( mActionSelectMoveItem );
-  connect( mActionSelectMoveItem, &QAction::triggered, mSelectTool, [this] { mView->setTool( mSelectTool ); } );
+  connect( mActionSelectMoveItem, &QAction::triggered, mSelectTool, [=] { mView->setTool( mSelectTool ); } );
   // after creating an item with the add item tool, switch immediately to select tool
-  connect( mAddItemTool, &QgsLayoutViewToolAddItem::createdItem, this, [this] { mView->setTool( mSelectTool ); } );
-  connect( mAddNodeItemTool, &QgsLayoutViewToolAddNodeItem::createdItem, this, [this] { mView->setTool( mSelectTool ); } );
+  connect( mAddItemTool, &QgsLayoutViewToolAddItem::createdItem, this, [=] { mView->setTool( mSelectTool ); } );
+  connect( mAddNodeItemTool, &QgsLayoutViewToolAddNodeItem::createdItem, this, [=] { mView->setTool( mSelectTool ); } );
 
   mNodesTool = new QgsLayoutViewToolEditNodes( mView );
   mNodesTool->setAction( mActionEditNodesItem );
   mToolsActionGroup->addAction( mActionEditNodesItem );
-  connect( mActionEditNodesItem, &QAction::triggered, mNodesTool, [this] { mView->setTool( mNodesTool ); } );
+  connect( mActionEditNodesItem, &QAction::triggered, mNodesTool, [=] { mView->setTool( mNodesTool ); } );
 
   mMoveContentTool = new QgsLayoutViewToolMoveItemContent( mView );
   mMoveContentTool->setAction( mActionMoveItemContent );
   mToolsActionGroup->addAction( mActionMoveItemContent );
-  connect( mActionMoveItemContent, &QAction::triggered, mMoveContentTool, [this] { mView->setTool( mMoveContentTool ); } );
+  connect( mActionMoveItemContent, &QAction::triggered, mMoveContentTool, [=] { mView->setTool( mMoveContentTool ); } );
 
   //Ctrl+= should also trigger zoom in
   QShortcut *ctrlEquals = new QShortcut( QKeySequence( QStringLiteral( "Ctrl+=" ) ), this );
@@ -620,26 +620,26 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
 
 
   mActionPreviewModeOff->setChecked( true );
-  connect( mActionPreviewModeOff, &QAction::triggered, this, [this] {
+  connect( mActionPreviewModeOff, &QAction::triggered, this, [=] {
     mView->setPreviewModeEnabled( false );
   } );
-  connect( mActionPreviewModeMono, &QAction::triggered, this, [this] {
+  connect( mActionPreviewModeMono, &QAction::triggered, this, [=] {
     mView->setPreviewMode( QgsPreviewEffect::PreviewMono );
     mView->setPreviewModeEnabled( true );
   } );
-  connect( mActionPreviewModeGrayscale, &QAction::triggered, this, [this] {
+  connect( mActionPreviewModeGrayscale, &QAction::triggered, this, [=] {
     mView->setPreviewMode( QgsPreviewEffect::PreviewGrayscale );
     mView->setPreviewModeEnabled( true );
   } );
-  connect( mActionPreviewProtanope, &QAction::triggered, this, [this] {
+  connect( mActionPreviewProtanope, &QAction::triggered, this, [=] {
     mView->setPreviewMode( QgsPreviewEffect::PreviewProtanope );
     mView->setPreviewModeEnabled( true );
   } );
-  connect( mActionPreviewDeuteranope, &QAction::triggered, this, [this] {
+  connect( mActionPreviewDeuteranope, &QAction::triggered, this, [=] {
     mView->setPreviewMode( QgsPreviewEffect::PreviewDeuteranope );
     mView->setPreviewModeEnabled( true );
   } );
-  connect( mActionPreviewTritanope, &QAction::triggered, this, [this] {
+  connect( mActionPreviewTritanope, &QAction::triggered, this, [=] {
     mView->setPreviewMode( QgsPreviewEffect::PreviewTritanope );
     mView->setPreviewModeEnabled( true );
   } );
@@ -673,61 +673,61 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   connect( mActionLowerItems, &QAction::triggered, this, &QgsLayoutDesignerDialog::lowerSelectedItems );
   connect( mActionMoveItemsToTop, &QAction::triggered, this, &QgsLayoutDesignerDialog::moveSelectedItemsToTop );
   connect( mActionMoveItemsToBottom, &QAction::triggered, this, &QgsLayoutDesignerDialog::moveSelectedItemsToBottom );
-  connect( mActionAlignLeft, &QAction::triggered, this, [this] {
+  connect( mActionAlignLeft, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignLeft );
   } );
-  connect( mActionAlignHCenter, &QAction::triggered, this, [this] {
+  connect( mActionAlignHCenter, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignHCenter );
   } );
-  connect( mActionAlignRight, &QAction::triggered, this, [this] {
+  connect( mActionAlignRight, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignRight );
   } );
-  connect( mActionAlignTop, &QAction::triggered, this, [this] {
+  connect( mActionAlignTop, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignTop );
   } );
-  connect( mActionAlignVCenter, &QAction::triggered, this, [this] {
+  connect( mActionAlignVCenter, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignVCenter );
   } );
-  connect( mActionAlignBottom, &QAction::triggered, this, [this] {
+  connect( mActionAlignBottom, &QAction::triggered, this, [=] {
     mView->alignSelectedItems( QgsLayoutAligner::AlignBottom );
   } );
-  connect( mActionDistributeLeft, &QAction::triggered, this, [this] {
+  connect( mActionDistributeLeft, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeLeft );
   } );
-  connect( mActionDistributeHCenter, &QAction::triggered, this, [this] {
+  connect( mActionDistributeHCenter, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeHCenter );
   } );
-  connect( mActionDistributeHSpace, &QAction::triggered, this, [this] {
+  connect( mActionDistributeHSpace, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeHSpace );
   } );
-  connect( mActionDistributeRight, &QAction::triggered, this, [this] {
+  connect( mActionDistributeRight, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeRight );
   } );
-  connect( mActionDistributeTop, &QAction::triggered, this, [this] {
+  connect( mActionDistributeTop, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeTop );
   } );
-  connect( mActionDistributeVCenter, &QAction::triggered, this, [this] {
+  connect( mActionDistributeVCenter, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeVCenter );
   } );
-  connect( mActionDistributeVSpace, &QAction::triggered, this, [this] {
+  connect( mActionDistributeVSpace, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeVSpace );
   } );
-  connect( mActionDistributeBottom, &QAction::triggered, this, [this] {
+  connect( mActionDistributeBottom, &QAction::triggered, this, [=] {
     mView->distributeSelectedItems( QgsLayoutAligner::DistributeBottom );
   } );
-  connect( mActionResizeNarrowest, &QAction::triggered, this, [this] {
+  connect( mActionResizeNarrowest, &QAction::triggered, this, [=] {
     mView->resizeSelectedItems( QgsLayoutAligner::ResizeNarrowest );
   } );
-  connect( mActionResizeWidest, &QAction::triggered, this, [this] {
+  connect( mActionResizeWidest, &QAction::triggered, this, [=] {
     mView->resizeSelectedItems( QgsLayoutAligner::ResizeWidest );
   } );
-  connect( mActionResizeShortest, &QAction::triggered, this, [this] {
+  connect( mActionResizeShortest, &QAction::triggered, this, [=] {
     mView->resizeSelectedItems( QgsLayoutAligner::ResizeShortest );
   } );
-  connect( mActionResizeTallest, &QAction::triggered, this, [this] {
+  connect( mActionResizeTallest, &QAction::triggered, this, [=] {
     mView->resizeSelectedItems( QgsLayoutAligner::ResizeTallest );
   } );
-  connect( mActionResizeToSquare, &QAction::triggered, this, [this] {
+  connect( mActionResizeToSquare, &QAction::triggered, this, [=] {
     mView->resizeSelectedItems( QgsLayoutAligner::ResizeToSquare );
   } );
 
@@ -749,16 +749,16 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mActionHidePanels->setChecked( !docksTitle.isEmpty() );
   connect( mActionHidePanels, &QAction::toggled, this, &QgsLayoutDesignerDialog::setPanelVisibility );
 
-  connect( mActionDeleteSelection, &QAction::triggered, this, [this] {
+  connect( mActionDeleteSelection, &QAction::triggered, this, [=] {
     if ( mView->tool() == mNodesTool )
       mNodesTool->deleteSelectedNode();
     else
       mView->deleteSelectedItems();
   } );
-  connect( mActionGroupItems, &QAction::triggered, this, [this] {
+  connect( mActionGroupItems, &QAction::triggered, this, [=] {
     mView->groupSelectedItems();
   } );
-  connect( mActionUngroupItems, &QAction::triggered, this, [this] {
+  connect( mActionUngroupItems, &QAction::triggered, this, [=] {
     mView->ungroupSelectedItems();
   } );
 
@@ -768,7 +768,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mActionCut->setShortcuts( QKeySequence::Cut );
   mActionCut->setStatusTip( tr( "Cut" ) );
   mActionCut->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionEditCut.svg" ) ) );
-  connect( mActionCut, &QAction::triggered, this, [this] {
+  connect( mActionCut, &QAction::triggered, this, [=] {
     mView->copySelectedItems( QgsLayoutView::ClipboardCut );
   } );
 
@@ -776,7 +776,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mActionCopy->setShortcuts( QKeySequence::Copy );
   mActionCopy->setStatusTip( tr( "Copy" ) );
   mActionCopy->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionEditCopy.svg" ) ) );
-  connect( mActionCopy, &QAction::triggered, this, [this] {
+  connect( mActionCopy, &QAction::triggered, this, [=] {
     mView->copySelectedItems( QgsLayoutView::ClipboardCopy );
   } );
 
@@ -854,7 +854,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   connect( mHorizontalRuler, &QgsLayoutRuler::cursorPosChanged, this, &QgsLayoutDesignerDialog::updateStatusCursorPos );
   connect( mVerticalRuler, &QgsLayoutRuler::cursorPosChanged, this, &QgsLayoutDesignerDialog::updateStatusCursorPos );
 
-  connect( mView, &QgsLayoutView::itemFocused, this, [this]( QgsLayoutItem *item ) {
+  connect( mView, &QgsLayoutView::itemFocused, this, [=]( QgsLayoutItem *item ) {
     showItemOptions( item, false );
   } );
 
@@ -880,7 +880,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mGeneralPropertiesStack = new QgsPanelWidgetStack();
   mGeneralDock->setWidget( mGeneralPropertiesStack );
   mPanelsMenu->addAction( mGeneralDock->toggleViewAction() );
-  connect( mActionLayoutProperties, &QAction::triggered, this, [this] {
+  connect( mActionLayoutProperties, &QAction::triggered, this, [=] {
     mGeneralDock->setUserVisible( true );
   } );
 
@@ -897,7 +897,7 @@ QgsLayoutDesignerDialog::QgsLayoutDesignerDialog( QWidget *parent, Qt::WindowFla
   mGuideStack = new QgsPanelWidgetStack();
   mGuideDock->setWidget( mGuideStack );
   mPanelsMenu->addAction( mGuideDock->toggleViewAction() );
-  connect( mActionManageGuides, &QAction::triggered, this, [this] {
+  connect( mActionManageGuides, &QAction::triggered, this, [=] {
     mGuideDock->setUserVisible( true );
   } );
 
@@ -1132,7 +1132,7 @@ void QgsLayoutDesignerDialog::setMasterLayout( QgsMasterLayoutInterface *layout
 
   QObject *obj = dynamic_cast<QObject *>( mMasterLayout );
   if ( obj )
-    connect( obj, &QObject::destroyed, this, [this] {
+    connect( obj, &QObject::destroyed, this, [=] {
       this->close();
     } );
 
@@ -1241,7 +1241,7 @@ void QgsLayoutDesignerDialog::setCurrentLayout( QgsLayout *layout )
     mLayoutToolbar->addAction( mRedoAction );
 
     connect( mLayout->undoStack(), &QgsLayoutUndoStack::undoRedoOccurredForItems, this, &QgsLayoutDesignerDialog::undoRedoOccurredForItems );
-    connect( mActionClearGuides, &QAction::triggered, &mLayout->guides(), [this] {
+    connect( mActionClearGuides, &QAction::triggered, &mLayout->guides(), [=] {
       mLayout->guides().clear();
     } );
 
@@ -1370,7 +1370,7 @@ void QgsLayoutDesignerDialog::open()
     // zoomFull() does not work properly until window has fully shown.
     // It's not enough to just call show on it, because the view widget won't be fully
     // resized to its final size until a little later...!
-    QTimer::singleShot( 100, this, [this] {
+    QTimer::singleShot( 100, this, [=] {
       mView->zoomFull();
       mView->setPaintingEnabled( true );
     } );
@@ -2061,7 +2061,7 @@ void QgsLayoutDesignerDialog::showManager()
   // NOTE: Avoid crash where composer that spawned modal manager from toolbar ends up
   // being deleted by user, but event loop tries to return to layout on manager close
   // (does not seem to be an issue for menu action)
-  QTimer::singleShot( 0, this, [] {
+  QTimer::singleShot( 0, this, [=] {
     QgisApp::instance()->showLayoutManager();
   } );
 }
@@ -3977,7 +3977,7 @@ void QgsLayoutDesignerDialog::createAtlasWidget()
 
   mPanelsMenu->addAction( mAtlasDock->toggleViewAction() );
 
-  connect( atlas, &QgsLayoutAtlas::messagePushed, mStatusBar, [this]( const QString &message ) {
+  connect( atlas, &QgsLayoutAtlas::messagePushed, mStatusBar, [=]( const QString &message ) {
     mStatusBar->showMessage( message );
   } );
   connect( atlas, &QgsLayoutAtlas::toggled, this, &QgsLayoutDesignerDialog::toggleAtlasControls );

src/app/layout/qgslayoutmanagerdialog.cpp

@@ -59,7 +59,7 @@ QgsLayoutManagerDialog::QgsLayoutManagerDialog( QWidget *parent, Qt::WindowFlags
   mTemplateFileWidget->setDefaultRoot( settings.value( QStringLiteral( "lastComposerTemplateDir" ), QString(), QgsSettings::App ).toString() );
   mTemplateFileWidget->setFilePath( settings.value( QStringLiteral( "ComposerManager/templatePath" ), QString(), QgsSettings::App ).toString() );
 
-  connect( mTemplateFileWidget, &QgsFileWidget::fileChanged, this, [this] {
+  connect( mTemplateFileWidget, &QgsFileWidget::fileChanged, this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "ComposerManager/templatePath" ), mTemplateFileWidget->filePath(), QgsSettings::App );
     QFileInfo tmplFileInfo( mTemplateFileWidget->filePath() );

src/app/layout/qgsreportorganizerwidget.cpp

@@ -116,7 +116,7 @@ void QgsReportOrganizerWidget::removeSection()
     return;
 
   std::function<void( QgsAbstractReportSection * section )> cleanup;
-  cleanup = [this, &cleanup]( QgsAbstractReportSection *section ) {
+  cleanup = [=, &cleanup]( QgsAbstractReportSection *section ) {
     if ( mDesigner->currentLayout() == section->header() || mDesigner->currentLayout() == section->footer() )
       mDesigner->setCurrentLayout( nullptr );
     if ( section->type() == QLatin1String( "SectionFieldGroup" ) )

src/app/locator/qgslocatoroptionswidget.cpp

@@ -108,7 +108,7 @@ QWidget *QgsLocatorFiltersModel::configButton( const QModelIndex &index, QWidget
     layout->addWidget( bt );
     w->setLayout( layout );
 
-    connect( bt, &QToolButton::clicked, this, [filter, bt]() { filter->openConfigWidget( bt ); } );
+    connect( bt, &QToolButton::clicked, this, [=]() { filter->openConfigWidget( bt ); } );
     bt->setMaximumSize( mIconSize, mIconSize );
     bt->setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
     bt->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/propertyicons/settings.svg" ) ) );

src/app/locator/qgsnominatimlocatorfilter.cpp

@@ -64,7 +64,7 @@ void QgsNominatimLocatorFilter::triggerResult( const QgsLocatorResult &result )
 
     QgsMessageBarItem *messageWidget = QgsMessageBar::createMessage( tr( "The Nominatim geocoder data is made available by OpenStreetMap Foundation and contributors." ) );
     QPushButton *learnMoreButton = new QPushButton( tr( "Learn more" ) );
-    connect( learnMoreButton, &QPushButton::clicked, learnMoreButton, [] {
+    connect( learnMoreButton, &QPushButton::clicked, learnMoreButton, [=] {
       QDesktopServices::openUrl( QStringLiteral( "https://nominatim.org/" ) );
     } );
     messageWidget->layout()->addWidget( learnMoreButton );

src/app/maptools/qgsavoidintersectionsoperation.cpp

@@ -82,7 +82,7 @@ QgsAvoidIntersectionsOperation::Result QgsAvoidIntersectionsOperation::apply( Qg
         QgsMessageBarItem *messageBarItem = QgisApp::instance()->messageBar()->createMessage( tr( "Avoid overlaps" ), tr( "Only the largest of multiple created geometries was preserved." ) );
         QPushButton *restoreButton = new QPushButton( tr( "Restore others" ) );
         QPointer<QgsVectorLayer> layerPtr( layer );
-        connect( restoreButton, &QPushButton::clicked, restoreButton, [layerPtr, removedFeatures] {
+        connect( restoreButton, &QPushButton::clicked, restoreButton, [=] {
           if ( !layerPtr )
             return;
           layerPtr->beginEditCommand( tr( "Restored geometry parts removed by avoid overlaps" ) );

src/app/maptools/qgsmaptoolsdigitizingtechniquemanager.cpp

@@ -74,7 +74,7 @@ void QgsMapToolsDigitizingTechniqueManager::setupToolBars()
     actionGroup->addAction( it.value() );
   }
   QgisApp::instance()->mActionStreamDigitize->setShortcut( tr( "R", "Keyboard shortcut: toggle stream digitizing" ) );
-  connect( digitizeMenu, &QMenu::triggered, this, [this]( QAction *action ) {
+  connect( digitizeMenu, &QMenu::triggered, this, [=]( QAction *action ) {
     Qgis::CaptureTechnique technique = mTechniqueActions.key( action, Qgis::CaptureTechnique::StraightSegments );
     if ( mDigitizeModeToolButton->defaultAction() != action )
     {
@@ -109,7 +109,7 @@ void QgsMapToolsDigitizingTechniqueManager::setupToolBars()
       shapeButton->setMenu( new QMenu() );
 
       QgisApp::instance()->mShapeDigitizeToolBar->addWidget( shapeButton );
-      QObject::connect( shapeButton, &QToolButton::triggered, this, [this]( QAction *action ) { setShapeTool( action->data().toString() ); } );
+      QObject::connect( shapeButton, &QToolButton::triggered, this, [=]( QAction *action ) { setShapeTool( action->data().toString() ); } );
 
       mShapeCategoryButtons.insert( metadata->category(), shapeButton );
     }
@@ -245,7 +245,7 @@ void QgsMapToolsDigitizingTechniqueManager::setupTool( QgsMapToolCapture *tool )
   }
 
   mInitializedTools.insert( tool );
-  connect( tool, &QObject::destroyed, this, [this, tool] {
+  connect( tool, &QObject::destroyed, this, [=] {
     mInitializedTools.remove( tool );
   } );
 }
@@ -361,7 +361,7 @@ QgsStreamDigitizingSettingsAction::QgsStreamDigitizingSettingsAction( QWidget *p
   QLabel *label = new QLabel( tr( "Streaming Tolerance" ) );
   gLayout->addWidget( label, 1, 0 );
   gLayout->addWidget( mStreamToleranceSpinBox, 1, 1 );
-  connect( mStreamToleranceSpinBox, qOverload<int>( &QgsSpinBox::valueChanged ), this, []( int value ) {
+  connect( mStreamToleranceSpinBox, qOverload<int>( &QgsSpinBox::valueChanged ), this, [=]( int value ) {
     QgsSettingsRegistryCore::settingsDigitizingStreamTolerance->setValue( value );
   } );
 

src/app/mesh/qgsmeshcalculatordialog.cpp

@@ -110,7 +110,7 @@ QgsMeshCalculatorDialog::QgsMeshCalculatorDialog( QgsMeshLayer *meshLayer, QgsMa
 
   repopulateTimeCombos();
   mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
-  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "working_with_mesh/mesh_properties.html#mesh-calculator" ) );
   } );
 

src/app/mesh/qgsmeshelevationpropertieswidget.cpp

@@ -87,7 +87,7 @@ QgsMeshElevationPropertiesWidget::QgsMeshElevationPropertiesWidget( QgsMeshLayer
   connect( mElevationLimitSpinBox, qOverload<double>( &QDoubleSpinBox::valueChanged ), this, &QgsMeshElevationPropertiesWidget::onChanged );
   connect( mLineStyleButton, &QgsSymbolButton::changed, this, &QgsMeshElevationPropertiesWidget::onChanged );
   connect( mFillStyleButton, &QgsSymbolButton::changed, this, &QgsMeshElevationPropertiesWidget::onChanged );
-  connect( mStyleComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this] {
+  connect( mStyleComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=] {
     switch ( static_cast<Qgis::ProfileSurfaceSymbology>( mStyleComboBox->currentData().toInt() ) )
     {
       case Qgis::ProfileSurfaceSymbology::Line:

src/app/mesh/qgsmeshtransformcoordinatesdockwidget.cpp

@@ -57,11 +57,11 @@ QgsMeshTransformCoordinatesDockWidget::QgsMeshTransformCoordinatesDockWidget( QW
   connect( mButtonApply, &QPushButton::clicked, this, &QgsMeshTransformCoordinatesDockWidget::apply );
   connect( mButtonImport, &QToolButton::toggled, this, &QgsMeshTransformCoordinatesDockWidget::onImportVertexClicked );
 
-  connect( mCheckBoxZ, &QCheckBox::toggled, this, [this]( const bool checked ) {
+  connect( mCheckBoxZ, &QCheckBox::toggled, this, [=]( const bool checked ) {
     if ( checked )
       mCheckBoxZFromProjectTerrain->setChecked( false );
   } );
-  connect( mCheckBoxZFromProjectTerrain, &QCheckBox::toggled, this, [this]( const bool checked ) {
+  connect( mCheckBoxZFromProjectTerrain, &QCheckBox::toggled, this, [=]( const bool checked ) {
     if ( checked )
       mCheckBoxZ->setChecked( false );
   } );

src/app/mesh/qgsnewmeshlayerdialog.cpp

@@ -69,7 +69,7 @@ QgsNewMeshLayerDialog::QgsNewMeshLayerDialog( QWidget *parent, Qt::WindowFlags f
   connect( mMeshFromFileWidget, &QgsFileWidget::fileChanged, this, &QgsNewMeshLayerDialog::updateDialog );
   connect( mMeshProjectComboBox, &QgsMapLayerComboBox::layerChanged, this, &QgsNewMeshLayerDialog::updateDialog );
 
-  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "managing_data_source/create_layers.html#creating-a-new-mesh-layer" ) );
   } );
 

src/app/options/qgsadvancedoptions.cpp

@@ -46,7 +46,7 @@ QgsAdvancedSettingsWidget::QgsAdvancedSettingsWidget( QWidget *parent )
   {
     createSettingsTreeWidget( true, true, true );
 
-    connect( mAdvancedSettingsEnableButton, &QPushButton::clicked, this, [this] {
+    connect( mAdvancedSettingsEnableButton, &QPushButton::clicked, this, [=] {
       settingsUseNewTreeWidget->setValue( mUseNewSettingsTree->isChecked() );
       mAdvancedSettingsWarning->hide();
       if ( settingsUseNewTreeWidget->value() )

src/app/options/qgscodeeditoroptions.cpp

@@ -114,7 +114,7 @@ QgsCodeEditorOptionsWidget::QgsCodeEditorOptionsWidget( QWidget *parent )
     mColorSchemeComboBox->setCurrentIndex( mColorSchemeComboBox->findData( QStringLiteral( "custom" ) ) );
   }
 
-  connect( mColorSchemeComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this] {
+  connect( mColorSchemeComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=] {
     const QString theme = mColorSchemeComboBox->currentData().toString();
     if ( theme != QLatin1String( "custom" ) )
     {
@@ -132,7 +132,7 @@ QgsCodeEditorOptionsWidget::QgsCodeEditorOptionsWidget( QWidget *parent )
 
   for ( auto it = mColorButtonMap.constBegin(); it != mColorButtonMap.constEnd(); ++it )
   {
-    connect( it.value(), &QgsColorButton::colorChanged, this, [this] {
+    connect( it.value(), &QgsColorButton::colorChanged, this, [=] {
       if ( mBlockCustomColorChange )
         return;
 
@@ -147,13 +147,13 @@ QgsCodeEditorOptionsWidget::QgsCodeEditorOptionsWidget( QWidget *parent )
   mSizeSpin->setValue( font.pointSize() );
   mOverrideFontGroupBox->setChecked( !settings.value( QStringLiteral( "codeEditor/fontfamily" ), QString(), QgsSettings::Gui ).toString().isEmpty() );
 
-  connect( mFontComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this] {
+  connect( mFontComboBox, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=] {
     updatePreview();
   } );
-  connect( mSizeSpin, qOverload<int>( &QSpinBox::valueChanged ), this, [this] {
+  connect( mSizeSpin, qOverload<int>( &QSpinBox::valueChanged ), this, [=] {
     updatePreview();
   } );
-  connect( mOverrideFontGroupBox, &QGroupBox::toggled, this, [this] {
+  connect( mOverrideFontGroupBox, &QGroupBox::toggled, this, [=] {
     updatePreview();
   } );
 
@@ -179,7 +179,7 @@ QgsCodeEditorOptionsWidget::QgsCodeEditorOptionsWidget( QWidget *parent )
   mListLanguage->addItem( tr( "Bash" ) );
   mListLanguage->addItem( tr( "Batch" ) );
 
-  connect( mListLanguage, &QListWidget::currentRowChanged, this, [this] {
+  connect( mListLanguage, &QListWidget::currentRowChanged, this, [=] {
     mPreviewStackedWidget->setCurrentIndex( mListLanguage->currentRow() );
   } );
 

src/app/options/qgscustomprojectionoptions.cpp

@@ -79,7 +79,7 @@ QgsCustomProjectionOptionsWidget::QgsCustomProjectionOptionsWidget( QWidget *par
   leNameList->hideColumn( QgisCrsIdColumn );
 
   connect( leName, &QLineEdit::textChanged, this, &QgsCustomProjectionOptionsWidget::updateListFromCurrentItem );
-  connect( mCrsDefinitionWidget, &QgsCrsDefinitionWidget::crsChanged, this, [this] {
+  connect( mCrsDefinitionWidget, &QgsCrsDefinitionWidget::crsChanged, this, [=] {
     if ( !mBlockUpdates )
       updateListFromCurrentItem();
   } );

src/app/options/qgsfontoptions.cpp

@@ -47,13 +47,13 @@ QgsFontOptionsWidget::QgsFontOptionsWidget( QWidget *parent )
     row++;
   }
 
-  connect( mButtonAddReplacement, &QToolButton::clicked, this, [this] {
+  connect( mButtonAddReplacement, &QToolButton::clicked, this, [=] {
     mTableReplacements->setRowCount( mTableReplacements->rowCount() + 1 );
     mTableReplacements->setFocus();
     mTableReplacements->setCurrentCell( mTableReplacements->rowCount() - 1, 0 );
   } );
 
-  connect( mButtonRemoveReplacement, &QToolButton::clicked, this, [this] {
+  connect( mButtonRemoveReplacement, &QToolButton::clicked, this, [=] {
     const QModelIndexList selection = mTableReplacements->selectionModel()->selectedRows();
     QList<int> selectedRows;
     for ( const QModelIndex &index : selection )
@@ -86,7 +86,7 @@ QgsFontOptionsWidget::QgsFontOptionsWidget( QWidget *parent )
     row++;
   }
 
-  connect( mButtonRemoveUserFont, &QToolButton::clicked, this, [this] {
+  connect( mButtonRemoveUserFont, &QToolButton::clicked, this, [=] {
     const QModelIndexList selection = mTableUserFonts->selectionModel()->selectedRows();
     QList<int> selectedRows;
     for ( const QModelIndex &index : selection )

src/app/options/qgsoptions.cpp

@@ -145,7 +145,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
   // some drivers apply for both raster and vector -- we treat these as siblings
   // and must ensure that checking/unchecking one also checks/unchecks the other
   // (we can't selectively just disable the raster/vector part of a GDAL driver)
-  auto syncItem = []( QTreeWidgetItem *changedItem, QTreeWidget *otherTree ) {
+  auto syncItem = [=]( QTreeWidgetItem *changedItem, QTreeWidget *otherTree ) {
     const QString driver = changedItem->data( 0, Qt::UserRole ).toString();
     for ( int i = 0; i < otherTree->topLevelItemCount(); ++i )
     {
@@ -160,10 +160,10 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
       }
     }
   };
-  connect( lstRasterDrivers, &QTreeWidget::itemChanged, this, [this, syncItem]( QTreeWidgetItem *item, int ) {
+  connect( lstRasterDrivers, &QTreeWidget::itemChanged, this, [=]( QTreeWidgetItem *item, int ) {
     syncItem( item, lstVectorDrivers );
   } );
-  connect( lstVectorDrivers, &QTreeWidget::itemChanged, this, [this, syncItem]( QTreeWidgetItem *item, int ) {
+  connect( lstVectorDrivers, &QTreeWidget::itemChanged, this, [=]( QTreeWidgetItem *item, int ) {
     syncItem( item, lstRasterDrivers );
   } );
 
@@ -172,8 +172,8 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
   connect( mCustomVariablesChkBx, &QCheckBox::toggled, this, &QgsOptions::mCustomVariablesChkBx_toggled );
   connect( mCurrentVariablesQGISChxBx, &QCheckBox::toggled, this, &QgsOptions::mCurrentVariablesQGISChxBx_toggled );
   connect( buttonBox, &QDialogButtonBox::helpRequested, this, &QgsOptions::showHelp );
-  connect( cboGlobalLocale, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this]( int ) { updateSampleLocaleText(); } );
-  connect( cbShowGroupSeparator, &QCheckBox::toggled, this, [this]( bool ) { updateSampleLocaleText(); } );
+  connect( cboGlobalLocale, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=]( int ) { updateSampleLocaleText(); } );
+  connect( cbShowGroupSeparator, &QCheckBox::toggled, this, [=]( bool ) { updateSampleLocaleText(); } );
 
   // QgsOptionsDialogBase handles saving/restoring of geometry, splitter and current tab states,
   // switching vertical tabs between icon/text to icon-only modes (splitter collapsed to left),
@@ -182,7 +182,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
   // disconnect default connection setup by initOptionsBase for accepting dialog, and insert logic
   // to validate widgets before allowing dialog to be closed
   disconnect( mOptButtonBox, &QDialogButtonBox::accepted, this, &QDialog::accept );
-  connect( mOptButtonBox, &QDialogButtonBox::accepted, this, [this] {
+  connect( mOptButtonBox, &QDialogButtonBox::accepted, this, [=] {
     for ( QgsOptionsPageWidget *widget : std::as_const( mAdditionalOptionWidgets ) )
     {
       if ( !widget->isValid() )
@@ -494,7 +494,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
   mAutoClearAccessCache->setChecked( mSettings->value( QStringLiteral( "clear_auth_cache_on_errors" ), true, QgsSettings::Section::Auth ).toBool() );
   connect( mClearAccessCache, &QAbstractButton::clicked, this, &QgsOptions::clearAccessCache );
 
-  connect( mAutoClearAccessCache, &QCheckBox::clicked, this, [this]( bool checked ) {
+  connect( mAutoClearAccessCache, &QCheckBox::clicked, this, [=]( bool checked ) {
     mSettings->setValue( QStringLiteral( "clear_auth_cache_on_errors" ), checked, QgsSettings::Section::Auth );
   } );
 
@@ -886,7 +886,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
   connect( mButtonImportColors, &QAbstractButton::clicked, mTreeCustomColors, &QgsColorSchemeList::showImportColorsDialog );
   connect( mButtonExportColors, &QAbstractButton::clicked, mTreeCustomColors, &QgsColorSchemeList::showExportColorsDialog );
 
-  connect( mActionImportPalette, &QAction::triggered, this, [this] {
+  connect( mActionImportPalette, &QAction::triggered, this, [=] {
     if ( QgsCompoundColorWidget::importUserPaletteFromFile( this ) )
     {
       //refresh combobox
@@ -894,7 +894,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
       mColorSchemesComboBox->setCurrentIndex( mColorSchemesComboBox->count() - 1 );
     }
   } );
-  connect( mActionRemovePalette, &QAction::triggered, this, [this] {
+  connect( mActionRemovePalette, &QAction::triggered, this, [=] {
     //get current scheme
     QList<QgsColorScheme *> schemeList = QgsApplication::colorSchemeRegistry()->schemes();
     int prevIndex = mColorSchemesComboBox->currentIndex();
@@ -917,7 +917,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
       mColorSchemesComboBox->setCurrentIndex( prevIndex );
     }
   } );
-  connect( mActionNewPalette, &QAction::triggered, this, [this] {
+  connect( mActionNewPalette, &QAction::triggered, this, [=] {
     if ( QgsCompoundColorWidget::createNewUserPalette( this ) )
     {
       //refresh combobox
@@ -926,7 +926,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
     }
   } );
 
-  connect( mActionShowInButtons, &QAction::toggled, this, [this]( bool state ) {
+  connect( mActionShowInButtons, &QAction::toggled, this, [=]( bool state ) {
     QgsUserColorScheme *scheme = dynamic_cast<QgsUserColorScheme *>( mTreeCustomColors->scheme() );
     if ( scheme )
     {
@@ -952,7 +952,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
     mColorSchemesComboBox->setCurrentIndex( mColorSchemesComboBox->findText( customSchemes.at( 0 )->schemeName() ) );
     updateActionsForCurrentColorScheme( customSchemes.at( 0 ) );
   }
-  connect( mColorSchemesComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this]( int index ) {
+  connect( mColorSchemesComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]( int index ) {
     //save changes to scheme
     if ( mTreeCustomColors->isDirty() )
     {
@@ -1221,7 +1221,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
 
   // Setup OpenCL Acceleration widget
 
-  connect( mGPUEnableCheckBox, &QCheckBox::toggled, this, [this]( bool checked ) {
+  connect( mGPUEnableCheckBox, &QCheckBox::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       // Since this may crash and lock users out of the settings, let's disable opencl setting before entering
@@ -1239,7 +1239,7 @@ QgsOptions::QgsOptions( QWidget *parent, Qt::WindowFlags fl, const QList<QgsOpti
           mOpenClDevicesCombo->addItem( QgsOpenClUtils::deviceInfo( QgsOpenClUtils::Info::Name, dev ), QgsOpenClUtils::deviceId( dev ) );
         }
         // Info updater
-        std::function<void( int )> infoUpdater = [this]( int ) {
+        std::function<void( int )> infoUpdater = [=]( int ) {
           mGPUInfoTextBrowser->setText( QgsOpenClUtils::deviceDescription( mOpenClDevicesCombo->currentData().toString() ) );
         };
         connect( mOpenClDevicesCombo, qOverload<int>( &QComboBox::currentIndexChanged ), infoUpdater );

src/app/project/qgsprojectelevationsettingswidget.cpp

@@ -59,7 +59,7 @@ QgsProjectElevationSettingsWidget::QgsProjectElevationSettingsWidget( QWidget *p
   mStackedWidget->setSizeMode( QgsStackedWidget::SizeMode::CurrentPageOnly );
 
   mStackedWidget->setCurrentWidget( mPageFlat );
-  connect( mComboTerrainType, qOverload<int>( &QComboBox::currentIndexChanged ), this, [this] {
+  connect( mComboTerrainType, qOverload<int>( &QComboBox::currentIndexChanged ), this, [=] {
     const QString terrainType = mComboTerrainType->currentData().toString();
     if ( terrainType == QLatin1String( "flat" ) )
     {

src/app/qgisapp.cpp

@@ -849,7 +849,7 @@ void QgisApp::annotationItemTypeAdded( int id )
     }
 
     connect( tool->mapTool(), &QgsMapTool::deactivated, tool->mapTool(), &QObject::deleteLater );
-    connect( tool->handler(), &QgsCreateAnnotationItemMapToolHandler::itemCreated, this, [this, tool] {
+    connect( tool->handler(), &QgsCreateAnnotationItemMapToolHandler::itemCreated, this, [=] {
       QgsAnnotationItem *item = tool->handler()->takeCreatedItem();
       QgsAnnotationLayer *targetLayer = qobject_cast<QgsAnnotationLayer *>( activeLayer() );
       if ( !targetLayer )
@@ -1217,7 +1217,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   showBookmarksDock->setWhatsThis( tr( "Show Bookmarks Panel" ) );
   mBookMarksDockWidget->setToggleVisibilityAction( mActionShowBookmarkManager );
 
-  connect( mActionShowBookmarks, &QAction::triggered, this, [this] { showBookmarks(); } );
+  connect( mActionShowBookmarks, &QAction::triggered, this, [=] { showBookmarks(); } );
 
   endProfile();
 
@@ -1346,7 +1346,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   mMapStyleWidget = new QgsLayerStylingWidget( mMapCanvas, mInfoBar, mMapLayerPanelFactories );
   mMapStylingDock->setWidget( mMapStyleWidget );
   connect( mMapStyleWidget, &QgsLayerStylingWidget::styleChanged, this, &QgisApp::updateLabelToolButtons );
-  connect( mMapStyleWidget, &QgsLayerStylingWidget::layerStyleChanged, this, [this]( const QString &styleName ) {
+  connect( mMapStyleWidget, &QgsLayerStylingWidget::layerStyleChanged, this, [=]( const QString &styleName ) {
     if ( !QgsMapLayerStyleManager::isDefault( styleName ) && !styleName.isEmpty() )
     {
       mMapStylingDock->setWindowTitle( tr( "Layer Styling (%1)" ).arg( styleName ) );
@@ -1383,7 +1383,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
 
   startProfile( tr( "Snapping dialog" ) );
   mSnappingDialog = new QgsSnappingWidget( QgsProject::instance(), mMapCanvas, this );
-  connect( mSnappingDialog, &QgsSnappingWidget::snappingConfigChanged, QgsProject::instance(), [this] { QgsProject::instance()->setSnappingConfig( mSnappingDialog->config() ); } );
+  connect( mSnappingDialog, &QgsSnappingWidget::snappingConfigChanged, QgsProject::instance(), [=] { QgsProject::instance()->setSnappingConfig( mSnappingDialog->config() ); } );
   QString mainSnappingWidgetMode = QgsSettings().value( QStringLiteral( "/qgis/mainSnappingWidgetMode" ), "dialog" ).toString();
   if ( mainSnappingWidgetMode == QLatin1String( "dock" ) )
   {
@@ -1448,11 +1448,11 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   addDockWidget( Qt::LeftDockWidgetArea, mBrowserWidget );
   mBrowserWidget->hide();
   // Only connect the first widget: the model is shared, there is no need to refresh multiple times.
-  connect( this, &QgisApp::connectionsChanged, mBrowserWidget, [this] {
+  connect( this, &QgisApp::connectionsChanged, mBrowserWidget, [=] {
     if ( !mBlockBrowser1Refresh && !mBlockBrowser2Refresh )
       mBrowserWidget->refresh();
   } );
-  connect( mBrowserWidget, &QgsBrowserDockWidget::connectionsChanged, this, [this] {
+  connect( mBrowserWidget, &QgsBrowserDockWidget::connectionsChanged, this, [=] {
     mBlockBrowser1Refresh++;
     emit connectionsChanged();
     mBlockBrowser1Refresh--;
@@ -1464,7 +1464,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   mBrowserWidget2->setObjectName( QStringLiteral( "Browser2" ) );
   addDockWidget( Qt::LeftDockWidgetArea, mBrowserWidget2 );
   mBrowserWidget2->hide();
-  connect( mBrowserWidget2, &QgsBrowserDockWidget::connectionsChanged, this, [this] {
+  connect( mBrowserWidget2, &QgsBrowserDockWidget::connectionsChanged, this, [=] {
     mBlockBrowser2Refresh++;
     emit connectionsChanged();
     mBlockBrowser2Refresh--;
@@ -1510,7 +1510,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   connect( mGpsSettingsMenu, &QgsAppGpsSettingsMenu::nmeaLogFileChanged, mGpsLogging, &QgsAppGpsLogging::setNmeaLogFile );
   connect( mGpsSettingsMenu, &QgsAppGpsSettingsMenu::gpkgLogDestinationChanged, mGpsLogging, &QgsAppGpsLogging::setGpkgLogFile );
   connect( mGpsLogging, &QgsAppGpsLogging::gpkgLoggingFailed, mGpsSettingsMenu, &QgsAppGpsSettingsMenu::onGpkgLoggingFailed );
-  connect( mGpsDigitizing, &QgsAppGpsDigitizing::trackIsEmptyChanged, mGpsToolBar, [this]( bool isEmpty ) { mGpsToolBar->setResetTrackButtonEnabled( !isEmpty ); } );
+  connect( mGpsDigitizing, &QgsAppGpsDigitizing::trackIsEmptyChanged, mGpsToolBar, [=]( bool isEmpty ) { mGpsToolBar->setResetTrackButtonEnabled( !isEmpty ); } );
 
   mpGpsWidget = new QgsGpsInformationWidget( mGpsConnection, mMapCanvas, mGpsDigitizing );
   QgsPanelWidgetStack *gpsStack = new QgsPanelWidgetStack();
@@ -1581,7 +1581,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
 
   // QgsMessageLog::logMessage( tr( "QGIS starting…" ), QString(), Qgis::MessageLevel::Info );
 
-  connect( QgsProject::instance(), &QgsProject::isDirtyChanged, this, [this] { setTitleBarText_( *this ); } );
+  connect( QgsProject::instance(), &QgsProject::isDirtyChanged, this, [=] { setTitleBarText_( *this ); } );
 
   // set QGIS specific srs validation
   connect( this, &QgisApp::customCrsValidation, this, &QgisApp::validateCrs );
@@ -1594,7 +1594,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   new QgsCredentialDialog( this );
 
   mLocatorWidget->setMapCanvas( mMapCanvas );
-  connect( mLocatorWidget, &QgsLocatorWidget::configTriggered, this, [this] { showOptionsDialog( this, QStringLiteral( "mOptionsLocatorSettings" ) ); } );
+  connect( mLocatorWidget, &QgsLocatorWidget::configTriggered, this, [=] { showOptionsDialog( this, QStringLiteral( "mOptionsLocatorSettings" ) ); } );
 
   qApp->processEvents();
 
@@ -1863,7 +1863,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   QgsGui::shortcutsManager()->registerAllChildren( mSnappingWidget );
 
   // register additional action
-  auto registerShortcuts = [this]( const QString &sequence, const QString &objectName, const QString &whatsThis ) {
+  auto registerShortcuts = [=]( const QString &sequence, const QString &objectName, const QString &whatsThis ) {
     QShortcut *sc = new QShortcut( QKeySequence( sequence ), this );
     sc->setContext( Qt::ApplicationShortcut );
     sc->setObjectName( objectName );
@@ -1929,13 +1929,13 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
 
   mStartupProfilerWidgetFactory.reset( std::make_unique<QgsProfilerWidgetFactory>( profiler ) );
 
-  auto toggleRevert = [this] {
+  auto toggleRevert = [=] {
     mActionRevertProject->setEnabled( QgsProject::instance()->isDirty() && !QgsProject::instance()->fileName().isEmpty() );
   };
   connect( QgsProject::instance(), &QgsProject::isDirtyChanged, mActionRevertProject, toggleRevert );
   connect( QgsProject::instance(), &QgsProject::fileNameChanged, mActionRevertProject, toggleRevert );
 
-  connect( QgsProject::instance()->displaySettings(), &QgsProjectDisplaySettings::bearingFormatChanged, this, [this] {
+  connect( QgsProject::instance()->displaySettings(), &QgsProjectDisplaySettings::bearingFormatChanged, this, [=] {
     mBearingNumericFormat.reset( QgsProject::instance()->displaySettings()->bearingFormat()->clone() );
   } );
   connect( mMapCanvas, &QgsMapCanvas::panDistanceBearingChanged, this, &QgisApp::showPanMessage );
@@ -1970,7 +1970,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
   mAppCanvasFiltering = new QgsAppCanvasFiltering( this );
   mAppCanvasFiltering->setupElevationControllerAction( mActionElevationController, mMapCanvas );
 
-  connect( QgsApplication::fontManager(), &QgsFontManager::fontDownloaded, this, [this]( const QStringList &families, const QString &licenseDetails ) {
+  connect( QgsApplication::fontManager(), &QgsFontManager::fontDownloaded, this, [=]( const QStringList &families, const QString &licenseDetails ) {
     const QString shortMessage = tr( "Installed font %1" ).arg( families.join( QLatin1String( ", " ) ) );
     QgsMessageBarItem *messageWidget = QgsMessageBar::createMessage( QString(), shortMessage );
     if ( !licenseDetails.isEmpty() )
@@ -1992,7 +1992,7 @@ QgisApp::QgisApp( QSplashScreen *splash, AppOptions options, const QString &root
       canvas->refreshAllLayers();
   } );
 
-  connect( QgsApplication::fontManager(), &QgsFontManager::fontDownloadErrorOccurred, this, [this]( const QUrl &, const QString &identifier, const QString &error ) {
+  connect( QgsApplication::fontManager(), &QgsFontManager::fontDownloadErrorOccurred, this, [=]( const QUrl &, const QString &identifier, const QString &error ) {
     const QString shortMessage = identifier.isEmpty() ? tr( "Font installation failed" )
                                                       : tr( "%1 font installation failed" ).arg( identifier );
     QgsMessageBarItem *messageWidget = QgsMessageBar::createMessage( QString(), shortMessage );
@@ -2426,10 +2426,10 @@ QList<QgsMapLayer *> QgisApp::handleDropUriList( const QgsMimeDataUtils::UriList
   QgsScopedProxyProgressTask task( tr( "Loading layers" ) );
 
 
-  auto showLayerLoadWarnings = [this]( const QString &title, const QString &shortMessage, const QString &longMessage, Qgis::MessageLevel level ) {
+  auto showLayerLoadWarnings = [=]( const QString &title, const QString &shortMessage, const QString &longMessage, Qgis::MessageLevel level ) {
     QgsMessageBarItem *messageWidget = QgsMessageBar::createMessage( title, shortMessage );
     QPushButton *detailsButton = new QPushButton( tr( "Details" ) );
-    connect( detailsButton, &QPushButton::clicked, this, [title, longMessage] {
+    connect( detailsButton, &QPushButton::clicked, this, [=] {
       if ( QgsMessageViewer *dialog = dynamic_cast<QgsMessageViewer *>( QgsMessageOutput::createMessageOutput() ) )
       {
         dialog->setTitle( title );
@@ -2712,7 +2712,7 @@ void QgisApp::dataSourceManager( const QString &pageName, const QString &layerUr
       }
     } );
 
-    connect( mDataSourceManagerDialog, &QgsDataSourceManagerDialog::addRasterLayers, this, []( const QStringList &layersList ) {
+    connect( mDataSourceManagerDialog, &QgsDataSourceManagerDialog::addRasterLayers, this, [=]( const QStringList &layersList ) {
       bool ok = false;
       QList<QgsMapLayer *> addedLayers = QgsAppLayerHandling::addGdalRasterLayers( layersList, ok );
       if ( ok )
@@ -2890,15 +2890,15 @@ void QgisApp::createActions()
 
   // Project Menu Items
 
-  connect( mActionNewProject, &QAction::triggered, this, [this] { fileNew(); } );
+  connect( mActionNewProject, &QAction::triggered, this, [=] { fileNew(); } );
   connect( mActionNewBlankProject, &QAction::triggered, this, &QgisApp::fileNewBlank );
   connect( mActionOpenProject, &QAction::triggered, this, &QgisApp::fileOpen );
   connect( mActionRevertProject, &QAction::triggered, this, &QgisApp::fileRevert );
   connect( mActionSaveProject, &QAction::triggered, this, &QgisApp::fileSave );
   connect( mActionCloseProject, &QAction::triggered, this, &QgisApp::fileClose );
   connect( mActionSaveProjectAs, &QAction::triggered, this, &QgisApp::fileSaveAs );
-  connect( mActionSaveMapAsImage, &QAction::triggered, this, [this] { saveMapAsImage(); } );
-  connect( mActionSaveMapAsPdf, &QAction::triggered, this, [this] { saveMapAsPdf(); } );
+  connect( mActionSaveMapAsImage, &QAction::triggered, this, [=] { saveMapAsImage(); } );
+  connect( mActionSaveMapAsPdf, &QAction::triggered, this, [=] { saveMapAsPdf(); } );
   connect( mActionNewMapCanvas, &QAction::triggered, this, &QgisApp::newMapCanvas );
   connect( mActionNew3DMapCanvas, &QAction::triggered, this, &QgisApp::new3DMapCanvas );
   connect( mActionNew3DMapCanvasGlobe, &QAction::triggered, this, &QgisApp::new3DMapCanvasGlobe );
@@ -2913,13 +2913,13 @@ void QgisApp::createActions()
 
   connect( mActionUndo, &QAction::triggered, mUndoWidget, &QgsUndoWidget::undo );
   connect( mActionRedo, &QAction::triggered, mUndoWidget, &QgsUndoWidget::redo );
-  connect( mActionCutFeatures, &QAction::triggered, this, [this] { cutSelectionToClipboard(); } );
-  connect( mActionCopyFeatures, &QAction::triggered, this, [this] { copySelectionToClipboard(); } );
-  connect( mActionPasteFeatures, &QAction::triggered, this, [this] { pasteFromClipboard(); } );
+  connect( mActionCutFeatures, &QAction::triggered, this, [=] { cutSelectionToClipboard(); } );
+  connect( mActionCopyFeatures, &QAction::triggered, this, [=] { copySelectionToClipboard(); } );
+  connect( mActionPasteFeatures, &QAction::triggered, this, [=] { pasteFromClipboard(); } );
   connect( mActionPasteAsNewVector, &QAction::triggered, this, &QgisApp::pasteAsNewVector );
-  connect( mActionPasteAsNewMemoryVector, &QAction::triggered, this, [this] { pasteAsNewMemoryVector(); } );
-  connect( mActionCopyStyle, &QAction::triggered, this, [this] { copyStyle(); } );
-  connect( mActionPasteStyle, &QAction::triggered, this, [this] { applyStyleToGroup(); } );
+  connect( mActionPasteAsNewMemoryVector, &QAction::triggered, this, [=] { pasteAsNewMemoryVector(); } );
+  connect( mActionCopyStyle, &QAction::triggered, this, [=] { copyStyle(); } );
+  connect( mActionPasteStyle, &QAction::triggered, this, [=] { applyStyleToGroup(); } );
   connect( mActionCopyLayer, &QAction::triggered, this, &QgisApp::copyLayer );
   connect( mActionPasteLayer, &QAction::triggered, this, &QgisApp::pasteLayer );
   connect( mActionAddFeature, &QAction::triggered, this, &QgisApp::addFeature );
@@ -2931,7 +2931,7 @@ void QgisApp::createActions()
   connect( mActionReshapeFeatures, &QAction::triggered, this, &QgisApp::reshapeFeatures );
   connect( mActionSplitFeatures, &QAction::triggered, this, &QgisApp::splitFeatures );
   connect( mActionSplitParts, &QAction::triggered, this, &QgisApp::splitParts );
-  connect( mActionDeleteSelected, &QAction::triggered, this, [this] { deleteSelected( nullptr, nullptr, true ); } );
+  connect( mActionDeleteSelected, &QAction::triggered, this, [=] { deleteSelected( nullptr, nullptr, true ); } );
   connect( mActionAddRing, &QAction::triggered, this, &QgisApp::addRing );
   connect( mActionFillRing, &QAction::triggered, this, &QgisApp::fillRing );
   connect( mActionAddPart, &QAction::triggered, this, &QgisApp::addPart );
@@ -2948,7 +2948,7 @@ void QgisApp::createActions()
   connect( mActionSnappingOptions, &QAction::triggered, this, &QgisApp::snappingOptions );
   connect( mActionOffsetCurve, &QAction::triggered, this, &QgisApp::offsetCurve );
   connect( mActionReverseLine, &QAction::triggered, this, &QgisApp::reverseLine );
-  connect( mActionTrimExtendFeature, &QAction::triggered, this, [this] { mMapCanvas->setMapTool( mMapTools->mapTool( QgsAppMapTools::TrimExtendFeature ) ); } );
+  connect( mActionTrimExtendFeature, &QAction::triggered, this, [=] { mMapCanvas->setMapTool( mMapTools->mapTool( QgsAppMapTools::TrimExtendFeature ) ); } );
 
   // View Menu Items
   connect( mActionPan, &QAction::triggered, this, &QgisApp::pan );
@@ -2962,7 +2962,7 @@ void QgisApp::createActions()
   connect( mActionDeselectAll, &QAction::triggered, this, &QgisApp::deselectAll );
   connect( mActionDeselectActiveLayer, &QAction::triggered, this, &QgisApp::deselectActiveLayer );
   connect( mActionSelectAll, &QAction::triggered, this, &QgisApp::selectAll );
-  connect( mActionReselect, &QAction::triggered, this, [this] {
+  connect( mActionReselect, &QAction::triggered, this, [=] {
     QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( mMapCanvas->currentLayer() );
     if ( !vlayer )
     {
@@ -2984,7 +2984,7 @@ void QgisApp::createActions()
   connect( mActionMeasure, &QAction::triggered, this, &QgisApp::measure );
   connect( mActionMeasureArea, &QAction::triggered, this, &QgisApp::measureArea );
   connect( mActionMeasureAngle, &QAction::triggered, this, &QgisApp::measureAngle );
-  connect( mActionMeasureBearing, &QAction::triggered, this, [this] { setMapTool( mMapTools->mapTool( QgsAppMapTools::MeasureBearing ) ); } );
+  connect( mActionMeasureBearing, &QAction::triggered, this, [=] { setMapTool( mMapTools->mapTool( QgsAppMapTools::MeasureBearing ) ); } );
   connect( mActionZoomFullExtent, &QAction::triggered, this, &QgisApp::zoomFull );
   connect( mActionZoomToLayer, &QAction::triggered, this, &QgisApp::zoomToLayerExtent );
   connect( mActionZoomToLayers, &QAction::triggered, this, &QgisApp::zoomToLayerExtent );
@@ -2993,7 +2993,7 @@ void QgisApp::createActions()
   connect( mActionZoomNext, &QAction::triggered, this, &QgisApp::zoomToNext );
   connect( mActionZoomActualSize, &QAction::triggered, this, &QgisApp::zoomActualSize );
   connect( mActionMapTips, &QAction::toggled, this, &QgisApp::toggleMapTips );
-  connect( mActionNewBookmark, &QAction::triggered, this, [this] { newBookmark( true ); } );
+  connect( mActionNewBookmark, &QAction::triggered, this, [=] { newBookmark( true ); } );
   connect( mActionDraw, &QAction::triggered, this, [this] { refreshMapCanvas( true ); } );
   connect( mActionFormAnnotation, &QAction::triggered, this, &QgisApp::addFormAnnotation );
   connect( mActionHtmlAnnotation, &QAction::triggered, this, &QgisApp::addHtmlAnnotation );
@@ -3004,7 +3004,7 @@ void QgisApp::createActions()
 
   // Layer Menu Items
 
-  connect( mActionDataSourceManager, &QAction::triggered, this, [this]() { dataSourceManager(); } );
+  connect( mActionDataSourceManager, &QAction::triggered, this, [=]() { dataSourceManager(); } );
   connect( mActionNewVectorLayer, &QAction::triggered, this, &QgisApp::newVectorLayer );
 #ifdef HAVE_SPATIALITE
   connect( mActionNewSpatiaLiteLayer, &QAction::triggered, this, &QgisApp::newSpatialiteLayer );
@@ -3018,56 +3018,56 @@ void QgisApp::createActions()
   connect( mActionShowMeshCalculator, &QAction::triggered, this, &QgisApp::showMeshCalculator );
   connect( mActionEmbedLayers, &QAction::triggered, this, &QgisApp::embedLayers );
   connect( mActionAddLayerDefinition, &QAction::triggered, this, &QgisApp::addLayerDefinition );
-  connect( mActionAddOgrLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "ogr" ) ); } );
-  connect( mActionAddRasterLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "gdal" ) ); } );
-  connect( mActionAddMeshLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "mdal" ) ); } );
-  connect( mActionAddPgLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "postgres" ) ); } );
+  connect( mActionAddOgrLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "ogr" ) ); } );
+  connect( mActionAddRasterLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "gdal" ) ); } );
+  connect( mActionAddMeshLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "mdal" ) ); } );
+  connect( mActionAddPgLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "postgres" ) ); } );
 #ifdef HAVE_SPATIALITE
-  connect( mActionAddSpatiaLiteLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "spatialite" ) ); } );
+  connect( mActionAddSpatiaLiteLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "spatialite" ) ); } );
 #endif
-  connect( mActionAddMssqlLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "mssql" ) ); } );
-  connect( mActionAddOracleLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "oracle" ) ); } );
-  connect( mActionAddHanaLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "hana" ) ); } );
-  connect( mActionAddWmsLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "wms" ) ); } );
-  connect( mActionAddXyzLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "xyz" ) ); } );
-  connect( mActionAddVectorTileLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "vectortile" ) ); } );
-  connect( mActionAddPointCloudLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "pointcloud" ) ); } );
-  connect( mActionAddGpsLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "gpx" ) ); } );
-  connect( mActionAddWcsLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "wcs" ) ); } );
-  connect( mActionAddStacLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "stac" ) ); } );
+  connect( mActionAddMssqlLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "mssql" ) ); } );
+  connect( mActionAddOracleLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "oracle" ) ); } );
+  connect( mActionAddHanaLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "hana" ) ); } );
+  connect( mActionAddWmsLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "wms" ) ); } );
+  connect( mActionAddXyzLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "xyz" ) ); } );
+  connect( mActionAddVectorTileLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "vectortile" ) ); } );
+  connect( mActionAddPointCloudLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "pointcloud" ) ); } );
+  connect( mActionAddGpsLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "gpx" ) ); } );
+  connect( mActionAddWcsLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "wcs" ) ); } );
+  connect( mActionAddStacLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "stac" ) ); } );
 #ifdef HAVE_SPATIALITE
-  connect( mActionAddWfsLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "WFS" ) ); } );
+  connect( mActionAddWfsLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "WFS" ) ); } );
 #endif
-  connect( mActionAddAfsLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "arcgisfeatureserver" ) ); } );
-  connect( mActionAddDelimitedText, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "delimitedtext" ) ); } );
-  connect( mActionAddVirtualLayer, &QAction::triggered, this, [this] { dataSourceManager( QStringLiteral( "virtual" ) ); } );
-  connect( mActionOpenTable, &QAction::triggered, this, [this] {
+  connect( mActionAddAfsLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "arcgisfeatureserver" ) ); } );
+  connect( mActionAddDelimitedText, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "delimitedtext" ) ); } );
+  connect( mActionAddVirtualLayer, &QAction::triggered, this, [=] { dataSourceManager( QStringLiteral( "virtual" ) ); } );
+  connect( mActionOpenTable, &QAction::triggered, this, [=] {
     QgsSettings settings;
     QgsAttributeTableFilterModel::FilterMode initialMode = settings.enumValue( QStringLiteral( "qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowAll );
     attributeTable( initialMode );
   } );
-  connect( mActionOpenTableSelected, &QAction::triggered, this, [this] {
+  connect( mActionOpenTableSelected, &QAction::triggered, this, [=] {
     attributeTable( QgsAttributeTableFilterModel::ShowSelected );
   } );
-  connect( mActionOpenTableVisible, &QAction::triggered, this, [this] {
+  connect( mActionOpenTableVisible, &QAction::triggered, this, [=] {
     attributeTable( QgsAttributeTableFilterModel::ShowVisible );
   } );
-  connect( mActionOpenTableEdited, &QAction::triggered, this, [this] {
+  connect( mActionOpenTableEdited, &QAction::triggered, this, [=] {
     attributeTable( QgsAttributeTableFilterModel::ShowEdited );
   } );
   connect( mActionOpenFieldCalc, &QAction::triggered, this, &QgisApp::fieldCalculator );
-  connect( mActionToggleEditing, &QAction::triggered, this, [this] { toggleEditing(); } );
+  connect( mActionToggleEditing, &QAction::triggered, this, [=] { toggleEditing(); } );
   connect( mActionSaveLayerEdits, &QAction::triggered, this, &QgisApp::saveActiveLayerEdits );
-  connect( mActionSaveEdits, &QAction::triggered, this, [this] { saveEdits(); } );
-  connect( mActionSaveAllEdits, &QAction::triggered, this, [this] { saveAllEdits(); } );
+  connect( mActionSaveEdits, &QAction::triggered, this, [=] { saveEdits(); } );
+  connect( mActionSaveAllEdits, &QAction::triggered, this, [=] { saveAllEdits(); } );
   connect( mActionRollbackEdits, &QAction::triggered, this, &QgisApp::rollbackEdits );
-  connect( mActionRollbackAllEdits, &QAction::triggered, this, [this] { rollbackAllEdits(); } );
-  connect( mActionCancelEdits, &QAction::triggered, this, [this] { cancelEdits(); } );
-  connect( mActionCancelAllEdits, &QAction::triggered, this, [this] { cancelAllEdits(); } );
-  connect( mActionLayerSaveAs, &QAction::triggered, this, [this] { saveAsFile(); } );
+  connect( mActionRollbackAllEdits, &QAction::triggered, this, [=] { rollbackAllEdits(); } );
+  connect( mActionCancelEdits, &QAction::triggered, this, [=] { cancelEdits(); } );
+  connect( mActionCancelAllEdits, &QAction::triggered, this, [=] { cancelAllEdits(); } );
+  connect( mActionLayerSaveAs, &QAction::triggered, this, [=] { saveAsFile(); } );
   connect( mActionSaveLayerDefinition, &QAction::triggered, this, &QgisApp::saveAsLayerDefinition );
   connect( mActionRemoveLayer, &QAction::triggered, this, &QgisApp::removeLayer );
-  connect( mActionDuplicateLayer, &QAction::triggered, this, [this] { duplicateLayers(); } );
+  connect( mActionDuplicateLayer, &QAction::triggered, this, [=] { duplicateLayers(); } );
   connect( mActionSetLayerScaleVisibility, &QAction::triggered, this, &QgisApp::setLayerScaleVisibility );
   connect( mActionSetLayerCRS, &QAction::triggered, this, &QgisApp::setLayerCrs );
   connect( mActionSetProjectCRSFromLayer, &QAction::triggered, this, &QgisApp::setProjectCrsFromLayer );
@@ -3094,7 +3094,7 @@ void QgisApp::createActions()
   connect( mActionToggleFullScreen, &QAction::triggered, this, &QgisApp::toggleFullScreen );
   connect( mActionTogglePanelsVisibility, &QAction::triggered, this, &QgisApp::togglePanelsVisibility );
   connect( mActionToggleMapOnly, &QAction::triggered, this, &QgisApp::toggleMapOnly );
-  connect( mActionProjectProperties, &QAction::triggered, this, [this] { projectProperties( QString() ); } );
+  connect( mActionProjectProperties, &QAction::triggered, this, [=] { projectProperties( QString() ); } );
   connect( mActionOptions, &QAction::triggered, this, &QgisApp::options );
   connect( mActionCustomProjection, &QAction::triggered, this, &QgisApp::customProjection );
   connect( mActionConfigureShortcuts, &QAction::triggered, this, &QgisApp::configureShortcuts );
@@ -3175,13 +3175,13 @@ void QgisApp::createActions()
   connect( mActionSponsors, &QAction::triggered, this, &QgisApp::sponsors );
 
   connect( mActionShowPinnedLabels, &QAction::toggled, this, &QgisApp::showPinnedLabels );
-  connect( mActionShowUnplacedLabels, &QAction::toggled, this, [this]( bool active ) {
+  connect( mActionShowUnplacedLabels, &QAction::toggled, this, [=]( bool active ) {
     QgsLabelingEngineSettings engineSettings = QgsProject::instance()->labelingEngineSettings();
     engineSettings.setFlag( Qgis::LabelingFlag::DrawUnplacedLabels, active );
     QgsProject::instance()->setLabelingEngineSettings( engineSettings );
     refreshMapCanvas( true );
   } );
-  connect( QgsProject::instance(), &QgsProject::labelingEngineSettingsChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::labelingEngineSettingsChanged, this, [=] {
     whileBlocking( mActionShowUnplacedLabels )->setChecked( QgsProject::instance()->labelingEngineSettings().testFlag( Qgis::LabelingFlag::DrawUnplacedLabels ) );
   } );
   connect( mActionPinLabels, &QAction::triggered, this, &QgisApp::pinLabels );
@@ -3193,8 +3193,8 @@ void QgisApp::createActions()
   connect( mActionDiagramProperties, &QAction::triggered, this, &QgisApp::diagramProperties );
 
   connect( mActionCreateAnnotationLayer, &QAction::triggered, this, &QgisApp::createAnnotationLayer );
-  connect( mActionModifyAnnotation, &QAction::triggered, this, [this] { mMapCanvas->setMapTool( mMapTools->mapTool( QgsAppMapTools::AnnotationEdit ) ); } );
-  connect( mMainAnnotationLayerProperties, &QAction::triggered, this, [this] {
+  connect( mActionModifyAnnotation, &QAction::triggered, this, [=] { mMapCanvas->setMapTool( mMapTools->mapTool( QgsAppMapTools::AnnotationEdit ) ); } );
+  connect( mMainAnnotationLayerProperties, &QAction::triggered, this, [=] {
     showLayerProperties( QgsProject::instance()->mainAnnotationLayer() );
   } );
 
@@ -3207,15 +3207,15 @@ void QgisApp::createActions()
   {
     QShortcut *copyShortcut = new QShortcut( QKeySequence::Copy, widget );
     copyShortcut->setContext( Qt::WidgetWithChildrenShortcut );
-    connect( copyShortcut, &QShortcut::activated, this, [this] { copySelectionToClipboard(); } );
+    connect( copyShortcut, &QShortcut::activated, this, [=] { copySelectionToClipboard(); } );
 
     QShortcut *cutShortcut = new QShortcut( QKeySequence::Cut, widget );
     cutShortcut->setContext( Qt::WidgetWithChildrenShortcut );
-    connect( cutShortcut, &QShortcut::activated, this, [this] { cutSelectionToClipboard(); } );
+    connect( cutShortcut, &QShortcut::activated, this, [=] { cutSelectionToClipboard(); } );
 
     QShortcut *pasteShortcut = new QShortcut( QKeySequence::Paste, widget );
     pasteShortcut->setContext( Qt::WidgetWithChildrenShortcut );
-    connect( pasteShortcut, &QShortcut::activated, this, [this] { pasteFromClipboard(); } );
+    connect( pasteShortcut, &QShortcut::activated, this, [=] { pasteFromClipboard(); } );
 
     QShortcut *selectAllShortcut = new QShortcut( QKeySequence::SelectAll, widget );
     selectAllShortcut->setContext( Qt::WidgetWithChildrenShortcut );
@@ -3547,13 +3547,13 @@ void QgisApp::createToolBars()
 
   mSnappingWidget = new QgsSnappingWidget( QgsProject::instance(), mMapCanvas, mSnappingToolBar );
   mSnappingWidget->setObjectName( QStringLiteral( "mSnappingWidget" ) );
-  connect( mSnappingWidget, &QgsSnappingWidget::snappingConfigChanged, QgsProject::instance(), [this] { QgsProject::instance()->setSnappingConfig( mSnappingWidget->config() ); } );
+  connect( mSnappingWidget, &QgsSnappingWidget::snappingConfigChanged, QgsProject::instance(), [=] { QgsProject::instance()->setSnappingConfig( mSnappingWidget->config() ); } );
   mSnappingToolBar->addWidget( mSnappingWidget );
 
   mTracer = new QgsMapCanvasTracer( mMapCanvas, messageBar() );
   mTracer->setActionEnableTracing( mSnappingWidget->enableTracingAction() );
   mTracer->setActionEnableSnapping( mSnappingWidget->enableSnappingAction() );
-  connect( mSnappingWidget->tracingOffsetSpinBox(), static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [this]( double v ) { mTracer->setOffset( v ); } );
+  connect( mSnappingWidget->tracingOffsetSpinBox(), static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [=]( double v ) { mTracer->setOffset( v ); } );
 
   mDigitizingTechniqueManager->setupToolBars();
 
@@ -4006,7 +4006,7 @@ void QgisApp::createStatusBar()
   mMagnifierWidget->setFont( statusBarFont );
   connect( mMapCanvas, &QgsMapCanvas::magnificationChanged, mMagnifierWidget, &QgsStatusBarMagnifierWidget::updateMagnification );
   connect( mMapCanvas, &QgsMapCanvas::scaleLockChanged, mMagnifierWidget, &QgsStatusBarMagnifierWidget::updateScaleLock );
-  connect( mMagnifierWidget, &QgsStatusBarMagnifierWidget::magnificationChanged, mMapCanvas, [this]( double factor ) { mMapCanvas->setMagnificationFactor( factor ); } );
+  connect( mMagnifierWidget, &QgsStatusBarMagnifierWidget::magnificationChanged, mMapCanvas, [=]( double factor ) { mMapCanvas->setMagnificationFactor( factor ); } );
   connect( mMagnifierWidget, &QgsStatusBarMagnifierWidget::scaleLockChanged, mMapCanvas, &QgsMapCanvas::setScaleLocked );
   mMagnifierWidget->updateMagnification( QSettings().value( QStringLiteral( "/qgis/magnifier_factor_default" ), 1.0 ).toDouble() );
   mStatusBar->addPermanentWidget( mMagnifierWidget, 0 );
@@ -4079,7 +4079,7 @@ void QgisApp::createStatusBar()
   mLocatorWidget = new QgsLocatorWidget( mStatusBar );
   mStatusBar->addPermanentWidget( mLocatorWidget, 0, QgsStatusBar::AnchorLeft );
   QShortcut *locatorShortCut = new QShortcut( QKeySequence( tr( "Ctrl+K" ) ), this );
-  connect( locatorShortCut, &QShortcut::activated, mLocatorWidget, [this] { mLocatorWidget->search( QString() ); } );
+  connect( locatorShortCut, &QShortcut::activated, mLocatorWidget, [=] { mLocatorWidget->search( QString() ); } );
   locatorShortCut->setObjectName( QStringLiteral( "Locator" ) );
   locatorShortCut->setWhatsThis( tr( "Trigger Locator" ) );
 
@@ -4358,7 +4358,7 @@ void QgisApp::setupConnections()
   connect( mMapCanvas, &QgsMapCanvas::zoomLastStatusChanged, mActionZoomLast, &QAction::setEnabled );
   connect( mMapCanvas, &QgsMapCanvas::zoomNextStatusChanged, mActionZoomNext, &QAction::setEnabled );
 
-  connect( mRenderSuppressionCBox, &QAbstractButton::toggled, this, [this]( bool flag ) {
+  connect( mRenderSuppressionCBox, &QAbstractButton::toggled, this, [=]( bool flag ) {
     const auto canvases = mapCanvases();
     for ( QgsMapCanvas *canvas : canvases )
       canvas->setRenderFlag( flag );
@@ -4377,18 +4377,18 @@ void QgisApp::setupConnections()
   // mOnTheFlyProjectionStatusButton with the correct icon, see https://github.com/qgis/QGIS/issues/53768
   connect( QgsProject::instance(), &QgsProject::cleared, this, &QgisApp::updateCrsStatusBar );
 
-  connect( QgsProject::instance()->viewSettings(), &QgsProjectViewSettings::mapScalesChanged, this, [this] { mScaleWidget->updateScales(); } );
+  connect( QgsProject::instance()->viewSettings(), &QgsProjectViewSettings::mapScalesChanged, this, [=] { mScaleWidget->updateScales(); } );
 
-  connect( QgsProject::instance(), &QgsProject::missingDatumTransforms, this, [this]( const QStringList &transforms ) {
+  connect( QgsProject::instance(), &QgsProject::missingDatumTransforms, this, [=]( const QStringList &transforms ) {
     QString message = tr( "Transforms are not installed: %1 " ).arg( transforms.join( QLatin1String( " ," ) ) );
     messageBar()->pushWarning( tr( "Missing datum transforms" ), message );
   } );
 
-  connect( QgsProject::instance(), &QgsProject::labelingEngineSettingsChanged, mMapCanvas, [this] {
+  connect( QgsProject::instance(), &QgsProject::labelingEngineSettingsChanged, mMapCanvas, [=] {
     mMapCanvas->setLabelingEngineSettings( QgsProject::instance()->labelingEngineSettings() );
   } );
 
-  connect( QgsProject::instance(), &QgsProject::backgroundColorChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::backgroundColorChanged, this, [=] {
     const QColor backgroundColor = QgsProject::instance()->backgroundColor();
     const auto constMapCanvases = mapCanvases();
     for ( QgsMapCanvas *canvas : constMapCanvases )
@@ -4402,7 +4402,7 @@ void QgisApp::setupConnections()
     }
   } );
 
-  connect( QgsProject::instance(), &QgsProject::selectionColorChanged, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::selectionColorChanged, this, [=] {
     const QColor selectionColor = QgsProject::instance()->selectionColor();
     const auto constMapCanvases = mapCanvases();
     for ( QgsMapCanvas *canvas : constMapCanvases )
@@ -4423,13 +4423,13 @@ void QgisApp::setupConnections()
   connect( mLayerTreeView->layerTreeModel()->rootGroup(), &QgsLayerTreeNode::removedChildren, this, &QgisApp::markDirty );
   connect( mLayerTreeView->layerTreeModel()->rootGroup(), &QgsLayerTreeNode::removedChildren, this, &QgisApp::updateNewLayerInsertionPoint );
   connect( mLayerTreeView->layerTreeModel()->rootGroup(), &QgsLayerTreeNode::visibilityChanged, this, &QgisApp::markDirty );
-  connect( mLayerTreeView->layerTreeModel()->rootGroup(), &QgsLayerTreeNode::customPropertyChanged, this, [this]( QgsLayerTreeNode *, const QString &key ) {
+  connect( mLayerTreeView->layerTreeModel()->rootGroup(), &QgsLayerTreeNode::customPropertyChanged, this, [=]( QgsLayerTreeNode *, const QString &key ) {
     // only mark dirty for non-view only changes
     if ( !QgsLayerTreeView::viewOnlyCustomProperties().contains( key ) )
       QgisApp::markDirty();
   } );
 
-  connect( mLayerTreeView, &QgsLayerTreeView::datasetsDropped, this, [this]( QDropEvent *event ) {
+  connect( mLayerTreeView, &QgsLayerTreeView::datasetsDropped, this, [=]( QDropEvent *event ) {
     mLayerTreeDrop = true;
     dropEvent( event );
   } );
@@ -4476,7 +4476,7 @@ void QgisApp::setupConnections()
   connect( QgsProject::instance(), &QgsProject::transactionGroupsChanged, this, &QgisApp::onTransactionGroupsChanged );
 
   // Handle dirty raster attribute tables
-  connect( QgsProject::instance(), qOverload<const QList<QgsMapLayer *> &>( &QgsProject::layersWillBeRemoved ), this, [this]( const QList<QgsMapLayer *> &layers ) {
+  connect( QgsProject::instance(), qOverload<const QList<QgsMapLayer *> &>( &QgsProject::layersWillBeRemoved ), this, [=]( const QList<QgsMapLayer *> &layers ) {
     checkUnsavedRasterAttributeTableEdits( layers, false );
   } );
 
@@ -4925,12 +4925,12 @@ void QgisApp::initLayerTreeView()
 
   mFilterLegendToggleShowPrivateLayersAction = new QAction( tr( "Show Private Layers" ), this );
   mFilterLegendToggleShowPrivateLayersAction->setCheckable( true );
-  connect( mFilterLegendToggleShowPrivateLayersAction, &QAction::toggled, this, [this]( bool showPrivateLayers ) { layerTreeView()->setShowPrivateLayers( showPrivateLayers ); } );
+  connect( mFilterLegendToggleShowPrivateLayersAction, &QAction::toggled, this, [=]( bool showPrivateLayers ) { layerTreeView()->setShowPrivateLayers( showPrivateLayers ); } );
   filterLegendMenu->addAction( mFilterLegendToggleShowPrivateLayersAction );
 
   mFilterLegendToggleHideValidLayersAction = new QAction( tr( "Show Broken Layers Only" ), this );
   mFilterLegendToggleHideValidLayersAction->setCheckable( true );
-  connect( mFilterLegendToggleHideValidLayersAction, &QAction::toggled, this, [this]( bool hideValidLayers ) { layerTreeView()->setHideValidLayers( hideValidLayers ); } );
+  connect( mFilterLegendToggleHideValidLayersAction, &QAction::toggled, this, [=]( bool hideValidLayers ) { layerTreeView()->setHideValidLayers( hideValidLayers ); } );
   filterLegendMenu->addAction( mFilterLegendToggleHideValidLayersAction );
 
   mLegendExpressionFilterButton = new QgsLegendFilterButton( this );
@@ -5234,7 +5234,7 @@ void QgisApp::updateRecentProjectPaths()
   {
     mRecentProjectsMenu->addSeparator();
     QAction *clearRecentProjectsAction = mRecentProjectsMenu->addAction( tr( "Clear List" ) );
-    connect( clearRecentProjectsAction, &QAction::triggered, mWelcomePage, [this]() { mWelcomePage->clearRecentProjects(); } );
+    connect( clearRecentProjectsAction, &QAction::triggered, mWelcomePage, [=]() { mWelcomePage->clearRecentProjects(); } );
   }
 
   std::vector<QgsNative::RecentProjectProperties> recentProjects;
@@ -6513,7 +6513,7 @@ bool QgisApp::addProject( const QString &projectFile )
     {
       // we have to delay the thumbnail creation until after the canvas has refreshed for the first time
       QMetaObject::Connection *connection = new QMetaObject::Connection();
-      *connection = connect( mMapCanvas, &QgsMapCanvas::mapCanvasRefreshed, this, [this, connection, customHandlerIcon]() {
+      *connection = connect( mMapCanvas, &QgsMapCanvas::mapCanvasRefreshed, this, [=]() {
         QObject::disconnect( *connection );
         delete connection;
         saveRecentProjectPath( true, customHandlerIcon );
@@ -8104,7 +8104,7 @@ QString QgisApp::saveAsRasterFile( QgsRasterLayer *rasterLayer, const bool defau
   } );
 
   // when an error occurs:
-  connect( writerTask, qOverload<int, const QString &>( &QgsRasterFileWriterTask::errorOccurred ), this, [this]( int errorInt, const QString &errorMessage ) {
+  connect( writerTask, qOverload<int, const QString &>( &QgsRasterFileWriterTask::errorOccurred ), this, [=]( int errorInt, const QString &errorMessage ) {
     const Qgis::RasterFileWriterResult error = static_cast<Qgis::RasterFileWriterResult>( errorInt );
     if ( error != Qgis::RasterFileWriterResult::Canceled )
     {
@@ -8876,7 +8876,7 @@ bool QgisApp::uniqueLayoutTitle( QWidget *parent, QString &title, bool acceptEmp
     dlg.setConflictingNameWarning( tr( "Title already exists!" ) );
 
     dlg.buttonBox()->addButton( QDialogButtonBox::Help );
-    connect( dlg.buttonBox(), &QDialogButtonBox::helpRequested, this, [helpPage] {
+    connect( dlg.buttonBox(), &QDialogButtonBox::helpRequested, this, [=] {
       QgsHelp::openHelp( helpPage );
     } );
 
@@ -9007,7 +9007,7 @@ void QgisApp::deleteLayoutDesigners()
 void QgisApp::setupLayoutManagerConnections()
 {
   QgsLayoutManager *manager = QgsProject::instance()->layoutManager();
-  connect( manager, &QgsLayoutManager::layoutAdded, this, [this]( const QString &name ) {
+  connect( manager, &QgsLayoutManager::layoutAdded, this, [=]( const QString &name ) {
     QgsMasterLayoutInterface *l = QgsProject::instance()->layoutManager()->layoutByName( name );
     if ( !l )
       return;
@@ -9035,7 +9035,7 @@ void QgisApp::setupLayoutManagerConnections()
     setupAtlasMapLayerAction( pl, pl->atlas()->enabled() && pl->atlas()->coverageLayer() );
   } );
 
-  connect( manager, &QgsLayoutManager::layoutAboutToBeRemoved, this, [this]( const QString &name ) {
+  connect( manager, &QgsLayoutManager::layoutAboutToBeRemoved, this, [=]( const QString &name ) {
     QgsMasterLayoutInterface *l = QgsProject::instance()->layoutManager()->layoutByName( name );
     if ( l )
     {
@@ -9989,7 +9989,7 @@ void QgisApp::selectByForm()
   dlg->setMessageBar( messageBar() );
   dlg->setMapCanvas( mapCanvas() );
   dlg->setAttribute( Qt::WA_DeleteOnClose );
-  connect( dlg, &QgsSelectByFormDialog::showFilteredFeaturesAttributeTable, dlg, [vlayer]( const QString &filter ) {
+  connect( dlg, &QgsSelectByFormDialog::showFilteredFeaturesAttributeTable, dlg, [=]( const QString &filter ) {
     if ( !vlayer->dataProvider() )
     {
       return;
@@ -10221,7 +10221,7 @@ void QgisApp::pasteFromClipboard( QgsMapLayer *destinationLayer )
 
         QgsFixAttributeDialog *dialog = new QgsFixAttributeDialog( pasteVectorLayer, invalidFeatures, this, context );
 
-        connect( dialog, &QgsFixAttributeDialog::finished, this, [this, pastedFeatures, validFeatures, dialog, pasteVectorLayer, invalidGeometriesCount, nTotalFeatures]( int feedback ) {
+        connect( dialog, &QgsFixAttributeDialog::finished, this, [=]( int feedback ) {
           QgsFeatureList features = pastedFeatures;
           switch ( feedback )
           {
@@ -10503,7 +10503,7 @@ void QgisApp::canvasRefreshStarted()
     mRenderProgressBarTimer.setSingleShot( true );
     mRenderProgressBarTimer.setInterval( 500 );
     disconnect( mRenderProgressBarTimerConnection );
-    mRenderProgressBarTimerConnection = connect( &mRenderProgressBarTimer, &QTimer::timeout, this, [this]() {
+    mRenderProgressBarTimerConnection = connect( &mRenderProgressBarTimer, &QTimer::timeout, this, [=]() {
       showProgress( -1, 0 );
     } );
     mRenderProgressBarTimer.start();
@@ -13160,7 +13160,7 @@ void QgisApp::initLayouts()
   } );
   auto map3dMetadata = std::make_unique<QgsLayoutItemGuiMetadata>(
     QgsLayoutItemRegistry::Layout3DMap, tr( "3D Map" ), QgsApplication::getThemeIcon( QStringLiteral( "/mActionAdd3DMap.svg" ) ),
-    []( QgsLayoutItem *item ) -> QgsLayoutItemBaseWidget * {
+    [=]( QgsLayoutItem *item ) -> QgsLayoutItemBaseWidget * {
       return new QgsLayout3DMapWidget( qobject_cast<QgsLayoutItem3DMap *>( item ) );
     },
     createRubberBand
@@ -13173,7 +13173,7 @@ void QgisApp::initLayouts()
   mLayoutImageDropHandler = new QgsLayoutImageDropHandler( this );
   registerCustomLayoutDropHandler( mLayoutImageDropHandler );
 
-  QgsLayoutElevationProfileWidget::sBuildCopyMenuFunction = [this]( QgsLayoutElevationProfileWidget *layoutWidget, QMenu *menu ) {
+  QgsLayoutElevationProfileWidget::sBuildCopyMenuFunction = [=]( QgsLayoutElevationProfileWidget *layoutWidget, QMenu *menu ) {
     menu->clear();
     const QList<QgsElevationProfileWidget *> elevationProfileWidgets = findChildren<QgsElevationProfileWidget *>();
 
@@ -13188,7 +13188,7 @@ void QgisApp::initLayouts()
       for ( QgsElevationProfileWidget *widget : elevationProfileWidgets )
       {
         QAction *action = new QAction( tr( "Copy From %1" ).arg( widget->canvasName() ), menu );
-        connect( action, &QAction::triggered, widget, [layoutWidget, widget] {
+        connect( action, &QAction::triggered, widget, [=] {
           layoutWidget->copySettingsFromProfileCanvas( widget->profileCanvas() );
         } );
         menu->addAction( action );
@@ -15887,7 +15887,7 @@ void QgisApp::renameView()
   renameDlg.setOverwriteEnabled( false );
   renameDlg.setConflictingNameWarning( tr( "A view with this name already exists" ) );
   renameDlg.buttonBox()->addButton( QDialogButtonBox::Help );
-  connect( renameDlg.buttonBox(), &QDialogButtonBox::helpRequested, this, [] {
+  connect( renameDlg.buttonBox(), &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "map_views/map_view.html" ) );
   } );
 
@@ -16566,9 +16566,9 @@ void QgisApp::showLayerProperties( QgsMapLayer *mapLayer, const QString &page )
       QgsVectorLayerProperties *vectorLayerPropertiesDialog = new QgsVectorLayerProperties( mMapCanvas, visibleMessageBar(), vlayer, this );
       connect(
         vectorLayerPropertiesDialog, static_cast<void ( QgsVectorLayerProperties::* )( QgsMapLayer * )>( &QgsVectorLayerProperties::toggleEditing ),
-        this, [this]( QgsMapLayer *layer ) { toggleEditing( layer ); }
+        this, [=]( QgsMapLayer *layer ) { toggleEditing( layer ); }
       );
-      connect( vectorLayerPropertiesDialog, &QgsVectorLayerProperties::exportAuxiliaryLayer, this, [this]( QgsAuxiliaryLayer *layer ) {
+      connect( vectorLayerPropertiesDialog, &QgsVectorLayerProperties::exportAuxiliaryLayer, this, [=]( QgsAuxiliaryLayer *layer ) {
         if ( layer )
         {
           std::unique_ptr<QgsVectorLayer> clone;

src/app/qgisappinterface.cpp

@@ -913,7 +913,7 @@ bool QgisAppInterface::openFeatureForm( QgsVectorLayer *vlayer, QgsFeature &f, b
 
 void QgisAppInterface::preloadForm( const QString &uifile )
 {
-  QTimer::singleShot( 0, this, [this, uifile] {
+  QTimer::singleShot( 0, this, [=] {
     cacheloadForm( uifile );
   } );
 }

src/app/qgsanimationexportdialog.cpp

@@ -71,7 +71,7 @@ QgsAnimationExportDialog::QgsAnimationExportDialog( QWidget *parent, QgsMapCanva
   QValidator *validator = new QRegularExpressionValidator( rx, this );
   mTemplateLineEdit->setValidator( validator );
 
-  connect( mTemplateLineEdit, &QLineEdit::textChanged, this, [this] {
+  connect( mTemplateLineEdit, &QLineEdit::textChanged, this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "ExportAnimation/fileNameTemplate" ), mTemplateLineEdit->text() );
   } );
@@ -82,7 +82,7 @@ QgsAnimationExportDialog::QgsAnimationExportDialog( QWidget *parent, QgsMapCanva
   mOutputDirFileWidget->setDefaultRoot( settings.value( QStringLiteral( "ExportAnimation/lastDir" ), QString(), QgsSettings::App ).toString() );
   mOutputDirFileWidget->setFilePath( settings.value( QStringLiteral( "ExportAnimation/lastDir" ), QString(), QgsSettings::App ).toString() );
 
-  connect( mOutputDirFileWidget, &QgsFileWidget::fileChanged, this, [this] {
+  connect( mOutputDirFileWidget, &QgsFileWidget::fileChanged, this, [=] {
     QgsSettings settings;
     settings.setValue( QStringLiteral( "ExportAnimation/lastDir" ), mOutputDirFileWidget->filePath(), QgsSettings::App );
   } );
@@ -114,18 +114,18 @@ QgsAnimationExportDialog::QgsAnimationExportDialog( QWidget *parent, QgsMapCanva
   mFrameDurationSpinBox->setValue( QgsProject::instance()->timeSettings()->timeStep() );
   mTimeStepsComboBox->setCurrentIndex( mTimeStepsComboBox->findData( static_cast<int>( QgsProject::instance()->timeSettings()->timeStepUnit() ) ) );
 
-  connect( mOutputWidthSpinBox, &QSpinBox::editingFinished, this, [this] { updateOutputWidth( mOutputWidthSpinBox->value() ); } );
-  connect( mOutputHeightSpinBox, &QSpinBox::editingFinished, this, [this] { updateOutputHeight( mOutputHeightSpinBox->value() ); } );
+  connect( mOutputWidthSpinBox, &QSpinBox::editingFinished, this, [=] { updateOutputWidth( mOutputWidthSpinBox->value() ); } );
+  connect( mOutputHeightSpinBox, &QSpinBox::editingFinished, this, [=] { updateOutputHeight( mOutputHeightSpinBox->value() ); } );
   connect( mExtentGroupBox, &QgsExtentGroupBox::extentChanged, this, &QgsAnimationExportDialog::updateExtent );
   connect( mLockAspectRatio, &QgsRatioLockButton::lockChanged, this, &QgsAnimationExportDialog::lockChanged );
 
   connect( mSetToProjectTimeButton, &QPushButton::clicked, this, &QgsAnimationExportDialog::setToProjectTime );
 
-  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "map_views/map_view.html#maptimecontrol" ) );
   } );
 
-  connect( buttonBox, &QDialogButtonBox::accepted, this, [this] {
+  connect( buttonBox, &QDialogButtonBox::accepted, this, [=] {
     emit startExport();
     accept();
   } );

src/app/qgsappbrowserproviders.cpp

@@ -239,7 +239,7 @@ bool QgsQptDataItem::handleDoubleClick()
 QList<QAction *> QgsQptDataItem::actions( QWidget *parent )
 {
   QAction *newLayout = new QAction( tr( "New Layout from Template" ), parent );
-  connect( newLayout, &QAction::triggered, this, [this] {
+  connect( newLayout, &QAction::triggered, this, [=] {
     QgisApp::instance()->openTemplate( path() );
   } );
   return QList<QAction *>() << newLayout;
@@ -283,11 +283,11 @@ bool QgsPyDataItem::handleDoubleClick()
 QList<QAction *> QgsPyDataItem::actions( QWidget *parent )
 {
   QAction *runScript = new QAction( tr( "&Run Script" ), parent );
-  connect( runScript, &QAction::triggered, this, [this] {
+  connect( runScript, &QAction::triggered, this, [=] {
     QgisApp::instance()->runScript( path() );
   } );
   QAction *editScript = new QAction( tr( "Open in External &Editor" ), this );
-  connect( editScript, &QAction::triggered, this, [this] {
+  connect( editScript, &QAction::triggered, this, [=] {
     QDesktopServices::openUrl( QUrl::fromLocalFile( path() ) );
   } );
   return QList<QAction *>() << runScript << editScript;
@@ -634,7 +634,7 @@ QgsBookmarkManagerItem::QgsBookmarkManagerItem( QgsDataItem *parent, const QStri
   mManager = manager;
   mIconName = QStringLiteral( "/mIconFolder.svg" );
 
-  connect( mManager, &QgsBookmarkManager::bookmarkAdded, this, [this]( const QString &id ) {
+  connect( mManager, &QgsBookmarkManager::bookmarkAdded, this, [=]( const QString &id ) {
     const QgsBookmark newDetails = mManager->bookmarkById( id );
     if ( newDetails.group().isEmpty() )
       addChildItem( new QgsBookmarkItem( this, newDetails.name(), newDetails, mManager ), true );
@@ -652,7 +652,7 @@ QgsBookmarkManagerItem::QgsBookmarkManagerItem( QgsDataItem *parent, const QStri
       }
     }
   } );
-  connect( mManager, &QgsBookmarkManager::bookmarkChanged, this, [this]( const QString &id ) {
+  connect( mManager, &QgsBookmarkManager::bookmarkChanged, this, [=]( const QString &id ) {
     const QgsBookmark newDetails = mManager->bookmarkById( id );
 
     // have to do a deep dive to find the old item...!
@@ -730,7 +730,7 @@ QgsBookmarkManagerItem::QgsBookmarkManagerItem( QgsDataItem *parent, const QStri
       }
     }
   } );
-  connect( mManager, &QgsBookmarkManager::bookmarkAboutToBeRemoved, this, [this]( const QString &id ) {
+  connect( mManager, &QgsBookmarkManager::bookmarkAboutToBeRemoved, this, [=]( const QString &id ) {
     const QgsBookmark b = mManager->bookmarkById( id );
     if ( !b.group().isEmpty() )
     {
@@ -970,23 +970,23 @@ void QgsBookmarksItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu
   if ( qobject_cast<QgsBookmarksItem *>( item ) )
   {
     QAction *addBookmark = new QAction( tr( "New Spatial Bookmark…" ), menu );
-    connect( addBookmark, &QAction::triggered, this, [] {
+    connect( addBookmark, &QAction::triggered, this, [=] {
       QgisApp::instance()->newBookmark();
     } );
     menu->addAction( addBookmark );
     QAction *showBookmarksPanel = new QAction( tr( "Show Spatial Bookmarks Manager" ), menu );
-    connect( showBookmarksPanel, &QAction::triggered, this, [] {
+    connect( showBookmarksPanel, &QAction::triggered, this, [=] {
       QgisApp::instance()->showBookmarkManager( true );
     } );
     menu->addAction( showBookmarksPanel );
     menu->addSeparator();
     QAction *importBookmarks = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionSharingImport.svg" ) ), tr( "Import Spatial Bookmarks…" ), menu );
-    connect( importBookmarks, &QAction::triggered, this, [this, context] {
+    connect( importBookmarks, &QAction::triggered, this, [=] {
       importBookmarksToManager( QgsApplication::bookmarkManager(), context.messageBar() );
     } );
     menu->addAction( importBookmarks );
     QAction *exportBookmarks = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionSharingExport.svg" ) ), tr( "Export Spatial Bookmarks…" ), menu );
-    connect( exportBookmarks, &QAction::triggered, this, [this, context] {
+    connect( exportBookmarks, &QAction::triggered, this, [=] {
       exportBookmarksFromManagers( QList<const QgsBookmarkManager *>() << QgsApplication::bookmarkManager() << QgsProject::instance()->bookmarkManager(), context.messageBar() );
     } );
     menu->addAction( exportBookmarks );
@@ -995,19 +995,19 @@ void QgsBookmarksItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu
   {
     QAction *addBookmark = new QAction( tr( "New Spatial Bookmark…" ), menu );
     const bool inProject = managerItem->manager() != QgsApplication::bookmarkManager();
-    connect( addBookmark, &QAction::triggered, this, [inProject] {
+    connect( addBookmark, &QAction::triggered, this, [=] {
       QgisApp::instance()->newBookmark( inProject );
     } );
     menu->addAction( addBookmark );
     menu->addSeparator();
     QAction *importBookmarks = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionSharingImport.svg" ) ), tr( "Import Spatial Bookmarks…" ), menu );
-    connect( importBookmarks, &QAction::triggered, this, [this, managerItem, context] {
+    connect( importBookmarks, &QAction::triggered, this, [=] {
       importBookmarksToManager( managerItem->manager(), context.messageBar() );
     } );
     menu->addAction( importBookmarks );
 
     QAction *exportBookmarks = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionSharingExport.svg" ) ), tr( "Export Spatial Bookmarks…" ), menu );
-    connect( exportBookmarks, &QAction::triggered, this, [this, managerItem, context] {
+    connect( exportBookmarks, &QAction::triggered, this, [=] {
       exportBookmarksFromManagers( QList<const QgsBookmarkManager *>() << managerItem->manager(), context.messageBar() );
     } );
     menu->addAction( exportBookmarks );
@@ -1089,7 +1089,7 @@ void QgsBookmarksItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu
 
     // Export bookmarks
     QAction *exportBookmarks = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionSharingExport.svg" ) ), tr( "Export Spatial Bookmarks…" ), menu );
-    connect( exportBookmarks, &QAction::triggered, this, [this, groupItem, context] {
+    connect( exportBookmarks, &QAction::triggered, this, [=] {
       exportBookmarksFromManagers( QList<const QgsBookmarkManager *>() << groupItem->manager(), context.messageBar(), groupItem->group() );
     } );
     menu->addAction( exportBookmarks );
@@ -1097,7 +1097,7 @@ void QgsBookmarksItemGuiProvider::populateContextMenu( QgsDataItem *item, QMenu
     // Add spatial bookmark
     QAction *addBookmarkToGroup = new QAction( tr( "New Spatial Bookmark…" ), menu );
     const bool inProject = manager != QgsApplication::bookmarkManager();
-    connect( addBookmarkToGroup, &QAction::triggered, this, [inProject, groupItem] {
+    connect( addBookmarkToGroup, &QAction::triggered, this, [=] {
       QgisApp::instance()->newBookmark( inProject, groupItem->group() );
     } );
     menu->addAction( addBookmarkToGroup );
@@ -1299,7 +1299,7 @@ bool QgsHtmlDataItem::handleDoubleClick()
 QList<QAction *> QgsHtmlDataItem::actions( QWidget *parent )
 {
   QAction *openAction = new QAction( tr( "&Open File…" ), parent );
-  connect( openAction, &QAction::triggered, this, [this] {
+  connect( openAction, &QAction::triggered, this, [=] {
     QDesktopServices::openUrl( QUrl::fromLocalFile( path() ) );
   } );
   return QList<QAction *>() << openAction;

src/app/qgsappcoordinateoperationhandlers.cpp

@@ -28,27 +28,27 @@
 QgsAppMissingGridHandler::QgsAppMissingGridHandler( QObject *parent )
   : QObject( parent )
 {
-  QgsCoordinateTransform::setCustomMissingRequiredGridHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::GridDetails &grid ) {
+  QgsCoordinateTransform::setCustomMissingRequiredGridHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::GridDetails &grid ) {
     emit missingRequiredGrid( sourceCrs, destinationCrs, grid );
   } );
 
-  QgsCoordinateTransform::setCustomMissingPreferredGridHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::TransformDetails &preferredOperation, const QgsDatumTransform::TransformDetails &availableOperation ) {
+  QgsCoordinateTransform::setCustomMissingPreferredGridHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::TransformDetails &preferredOperation, const QgsDatumTransform::TransformDetails &availableOperation ) {
     emit missingPreferredGrid( sourceCrs, destinationCrs, preferredOperation, availableOperation );
   } );
 
-  QgsCoordinateTransform::setCustomCoordinateOperationCreationErrorHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QString &error ) {
+  QgsCoordinateTransform::setCustomCoordinateOperationCreationErrorHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QString &error ) {
     emit coordinateOperationCreationError( sourceCrs, destinationCrs, error );
   } );
 
-  QgsCoordinateTransform::setCustomMissingGridUsedByContextHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::TransformDetails &desired ) {
+  QgsCoordinateTransform::setCustomMissingGridUsedByContextHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QgsDatumTransform::TransformDetails &desired ) {
     emit missingGridUsedByContextHandler( sourceCrs, destinationCrs, desired );
   } );
 
-  QgsCoordinateTransform::setFallbackOperationOccurredHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QString &desired ) {
+  QgsCoordinateTransform::setFallbackOperationOccurredHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs, const QString &desired ) {
     emit fallbackOperationOccurred( sourceCrs, destinationCrs, desired );
   } );
 
-  QgsCoordinateTransform::setDynamicCrsToDynamicCrsWarningHandler( [this]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs ) {
+  QgsCoordinateTransform::setDynamicCrsToDynamicCrsWarningHandler( [=]( const QgsCoordinateReferenceSystem &sourceCrs, const QgsCoordinateReferenceSystem &destinationCrs ) {
     emit dynamicToDynamicWarning( sourceCrs, destinationCrs );
   } );
 
@@ -59,7 +59,7 @@ QgsAppMissingGridHandler::QgsAppMissingGridHandler( QObject *parent )
   connect( this, &QgsAppMissingGridHandler::fallbackOperationOccurred, this, &QgsAppMissingGridHandler::onFallbackOperationOccurred, Qt::QueuedConnection );
   connect( this, &QgsAppMissingGridHandler::dynamicToDynamicWarning, this, &QgsAppMissingGridHandler::onDynamicToDynamicWarning, Qt::QueuedConnection );
 
-  connect( QgsProject::instance(), &QgsProject::cleared, this, [this] {
+  connect( QgsProject::instance(), &QgsProject::cleared, this, [=] {
     mAlreadyWarnedPairsForProject.clear();
     mAlreadyWarnedBallparkPairsForProject.clear();
   } );

src/app/qgsappdbutils.cpp

@@ -52,7 +52,7 @@ QgsQueryHistoryDialog::QgsQueryHistoryDialog( QWidget *parent )
   mButtonBox->addButton( clearButton, QDialogButtonBox::ActionRole );
 
   connect( clearButton, &QPushButton::clicked, this, &QgsQueryHistoryDialog::clearHistory );
-  connect( mButtonBox->button( QDialogButtonBox::Close ), &QPushButton::clicked, mWidget, [this]() { close(); } );
+  connect( mButtonBox->button( QDialogButtonBox::Close ), &QPushButton::clicked, mWidget, [=]() { close(); } );
 
   vl->addWidget( mButtonBox );
 

src/app/qgsapplayertreeviewmenuprovider.cpp

@@ -444,7 +444,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
         {
           QgsSettings settings;
           const QgsAttributeTableFilterModel::FilterMode initialMode = settings.enumValue( QStringLiteral( "qgis/attributeTableBehavior" ), QgsAttributeTableFilterModel::ShowAll );
-          const auto lambdaOpenAttributeTable = [initialMode] { QgisApp::instance()->attributeTable( initialMode ); };
+          const auto lambdaOpenAttributeTable = [=] { QgisApp::instance()->attributeTable( initialMode ); };
           QAction *attributeTableAction = menu->addAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionOpenTable.svg" ) ), tr( "Open &Attribute Table" ), QgisApp::instance(), lambdaOpenAttributeTable );
           attributeTableAction->setEnabled( vlayer->isValid() );
         }
@@ -495,7 +495,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
         }
         else
         {
-          connect( a, &QAction::triggered, this, [layer] {
+          connect( a, &QAction::triggered, this, [=] {
             QgisApp::instance()->changeDataSource( layer );
           } );
         }
@@ -517,7 +517,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
           {
             if ( target == Qgis::MapLayerActionTarget::SingleFeature )
             {
-              actionMenu->addAction( action->text(), action, [action, vlayer, context]() {
+              actionMenu->addAction( action->text(), action, [=]() {
                 Q_NOWARN_DEPRECATED_PUSH
                 action->triggerForFeature( vlayer, vlayer->selectedFeatures().at( 0 ) );
                 Q_NOWARN_DEPRECATED_POP
@@ -526,7 +526,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
             }
             else if ( target == Qgis::MapLayerActionTarget::MultipleFeatures )
             {
-              actionMenu->addAction( action->text(), action, [action, vlayer, context]() {
+              actionMenu->addAction( action->text(), action, [=]() {
                 Q_NOWARN_DEPRECATED_PUSH
                 action->triggerForFeatures( vlayer, vlayer->selectedFeatures() );
                 Q_NOWARN_DEPRECATED_POP
@@ -600,7 +600,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
               continue;
 
             QAction *action = menuSetCRS->addAction( tr( "Set to %1" ).arg( crs.userFriendlyIdentifier( Qgis::CrsIdentifierType::ShortString ) ) );
-            connect( action, &QAction::triggered, this, [this, crs] {
+            connect( action, &QAction::triggered, this, [=] {
               setLayerCrs( crs );
             } );
 
@@ -632,7 +632,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
               if ( vlayer->isTemporary() && mView->selectedLayerNodes().count() == 1 )
               {
                 QAction *actionMakePermanent = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "mActionFileSave.svg" ) ), tr( "Make Permanent…" ), menu );
-                connect( actionMakePermanent, &QAction::triggered, QgisApp::instance(), [vlayer] { QgisApp::instance()->makeMemoryLayerPermanent( vlayer ); } );
+                connect( actionMakePermanent, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->makeMemoryLayerPermanent( vlayer ); } );
                 menu->addAction( actionMakePermanent );
               }
               // save as vector file
@@ -641,11 +641,11 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
               if ( mView->selectedLayerNodes().count() == 1 )
               {
                 QAction *actionSaveAs = new QAction( tr( "Save Features &As…" ), menuExportVector );
-                connect( actionSaveAs, &QAction::triggered, QgisApp::instance(), [] { QgisApp::instance()->saveAsFile(); } );
+                connect( actionSaveAs, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->saveAsFile(); } );
                 actionSaveAs->setEnabled( vlayer->isValid() );
                 menuExportVector->addAction( actionSaveAs );
                 QAction *actionSaveSelectedFeaturesAs = new QAction( tr( "Save &Selected Features As…" ), menuExportVector );
-                connect( actionSaveSelectedFeaturesAs, &QAction::triggered, QgisApp::instance(), [] { QgisApp::instance()->saveAsFile( nullptr, true ); } );
+                connect( actionSaveSelectedFeaturesAs, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->saveAsFile( nullptr, true ); } );
                 actionSaveSelectedFeaturesAs->setEnabled( vlayer->isValid() && vlayer->selectedFeatureCount() > 0 );
                 menuExportVector->addAction( actionSaveSelectedFeaturesAs );
               }
@@ -655,7 +655,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
               if ( vlayer->isSpatial() )
               {
                 QAction *actionSaveStyle = new QAction( tr( "Save as &QGIS Layer Style File…" ), menuExportVector );
-                connect( actionSaveStyle, &QAction::triggered, QgisApp::instance(), [] { QgisApp::instance()->saveStyleFile(); } );
+                connect( actionSaveStyle, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->saveStyleFile(); } );
                 menuExportVector->addAction( actionSaveStyle );
               }
               menu->addMenu( menuExportVector );
@@ -673,14 +673,14 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
             if ( mView->selectedLayerNodes().count() == 1 )
             {
               QAction *actionSaveAs = new QAction( tr( "Save &As…" ), menuExportRaster );
-              connect( actionSaveAs, &QAction::triggered, QgisApp::instance(), [] { QgisApp::instance()->saveAsFile(); } );
+              connect( actionSaveAs, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->saveAsFile(); } );
               menuExportRaster->addAction( actionSaveAs );
             }
             QAction *actionSaveAsDefinitionLayer = new QAction( tr( "Save as Layer &Definition File…" ), menuExportRaster );
             QAction *actionSaveStyle = new QAction( tr( "Save as &QGIS Layer Style File…" ), menuExportRaster );
             connect( actionSaveAsDefinitionLayer, &QAction::triggered, QgisApp::instance(), &QgisApp::saveAsLayerDefinition );
             menuExportRaster->addAction( actionSaveAsDefinitionLayer );
-            connect( actionSaveStyle, &QAction::triggered, QgisApp::instance(), [] { QgisApp::instance()->saveStyleFile(); } );
+            connect( actionSaveStyle, &QAction::triggered, QgisApp::instance(), [=] { QgisApp::instance()->saveStyleFile(); } );
             menuExportRaster->addAction( actionSaveStyle );
             menu->addMenu( menuExportRaster );
           }
@@ -728,7 +728,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
             const QIcon icon = model->data( index, Qt::DecorationRole ).value<QIcon>();
             QAction *copyAction = new QAction( icon, name, copyStyleMenu );
             copyAction->setToolTip( tooltip );
-            connect( copyAction, &QAction::triggered, this, [app, layer, category]() { app->copyStyle( layer, category ); } );
+            connect( copyAction, &QAction::triggered, this, [=]() { app->copyStyle( layer, category ); } );
             copyStyleMenu->addAction( copyAction );
             if ( category == QgsMapLayer::AllStyleCategories )
               copyStyleMenu->addSeparator()->setObjectName( QLatin1String( "CopyStyleSeparator" ) );
@@ -736,7 +736,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
         }
         else
         {
-          menuStyleManager->addAction( tr( "Copy Style" ), app, [app] { app->copyStyle(); } );
+          menuStyleManager->addAction( tr( "Copy Style" ), app, [=] { app->copyStyle(); } );
         }
 
         if ( layer && app->clipboard()->hasFormat( QGSCLIPBOARD_STYLE_MIME ) )
@@ -767,7 +767,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
                   const QIcon icon = model->data( index, Qt::DecorationRole ).value<QIcon>();
                   QAction *pasteAction = new QAction( icon, name, pasteStyleMenu );
                   pasteAction->setToolTip( tooltip );
-                  connect( pasteAction, &QAction::triggered, this, [app, layer, category]() { app->pasteStyle( layer, category ); } );
+                  connect( pasteAction, &QAction::triggered, this, [=]() { app->pasteStyle( layer, category ); } );
                   pasteStyleMenu->addAction( pasteAction );
                   if ( category == QgsMapLayer::AllStyleCategories )
                     pasteStyleMenu->addSeparator()->setObjectName( QLatin1String( "PasteStyleSeparator" ) );
@@ -779,7 +779,7 @@ QMenu *QgsAppLayerTreeViewMenuProvider::createContextMenu()
           }
           else
           {
-            menuStyleManager->addAction( tr( "Paste Style" ), app, [app] { app->pasteStyle(); } );
+            menuStyleManager->addAction( tr( "Paste Style" ), app, [=] { app->pasteStyle(); } );
           }
         }
 

src/app/qgsattributetabledialog.cpp

@@ -282,17 +282,17 @@ QgsAttributeTableDialog::QgsAttributeTableDialog( QgsVectorLayer *layer, QgsAttr
   connect( mMainView, &QgsDualView::formModeChanged, this, &QgsAttributeTableDialog::viewModeChanged );
 
   // info from table to application
-  connect( this, &QgsAttributeTableDialog::saveEdits, this, [] { QgisApp::instance()->saveEdits(); } );
+  connect( this, &QgsAttributeTableDialog::saveEdits, this, [=] { QgisApp::instance()->saveEdits(); } );
 
   QgsDockableWidgetHelper::OpeningMode openingMode = QgsDockableWidgetHelper::OpeningMode::RespectSetting;
   if ( initiallyDocked )
     openingMode = *initiallyDocked ? QgsDockableWidgetHelper::OpeningMode::ForceDocked : QgsDockableWidgetHelper::OpeningMode::ForceDialog;
   mDockableWidgetHelper = new QgsDockableWidgetHelper( windowTitle(), this, QgisApp::instance(), QStringLiteral( "attribute-table" ), QStringList(), openingMode, true, Qt::BottomDockWidgetArea );
   toggleShortcuts( !mDockableWidgetHelper->isDocked() );
-  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [this]() {
+  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [=]() {
     close();
   } );
-  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::dockModeToggled, this, [this]( bool docked ) {
+  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::dockModeToggled, this, [=]( bool docked ) {
     if ( docked )
     {
       toggleShortcuts( mDockableWidgetHelper->dockWidget()->isFloating() );

src/app/qgsdatumtransformtablewidget.cpp

@@ -175,7 +175,7 @@ QgsDatumTransformTableWidget::QgsDatumTransformTableWidget( QWidget *parent )
 
   connect( mAddButton, &QToolButton::clicked, this, &QgsDatumTransformTableWidget::addDatumTransform );
   connect( mRemoveButton, &QToolButton::clicked, this, &QgsDatumTransformTableWidget::removeDatumTransform );
-  connect( mEditButton, &QToolButton::clicked, this, [this] {
+  connect( mEditButton, &QToolButton::clicked, this, [=] {
     const QModelIndexList selectedIndexes = mTableView->selectionModel()->selectedIndexes();
     if ( selectedIndexes.count() > 0 )
     {
@@ -185,7 +185,7 @@ QgsDatumTransformTableWidget::QgsDatumTransformTableWidget( QWidget *parent )
 
   connect( mTableView->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QgsDatumTransformTableWidget::selectionChanged );
 
-  connect( mTableView, &QTableView::doubleClicked, this, [this]( const QModelIndex &index ) {
+  connect( mTableView, &QTableView::doubleClicked, this, [=]( const QModelIndex &index ) {
     editDatumTransform( index );
   } );
   mEditButton->setEnabled( false );

src/app/qgsdevtoolspanelwidget.cpp

@@ -42,7 +42,7 @@ QgsDevToolsPanelWidget::QgsDevToolsPanelWidget( const QList<QgsDevToolWidgetFact
   for ( QgsDevToolWidgetFactory *factory : factories )
     addToolFactory( factory );
 
-  connect( mOptionsListWidget, &QListWidget::currentRowChanged, this, [this]( int row ) {
+  connect( mOptionsListWidget, &QListWidget::currentRowChanged, this, [=]( int row ) {
     setCurrentTool( row );
     settingLastActiveTab->setValue( mOptionsListWidget->currentItem()->data( Qt::UserRole ).toString() );
   } );

src/app/qgsdiscoverrelationsdialog.cpp

@@ -28,7 +28,7 @@ QgsDiscoverRelationsDialog::QgsDiscoverRelationsDialog( const QList<QgsRelation>
 
   mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
   mButtonBox->addButton( QDialogButtonBox::Help );
-  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( mButtonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "working_with_vector/attribute_table.html#defining-1-n-relation" ) );
   } );
   connect( mRelationsTable->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QgsDiscoverRelationsDialog::onSelectionChanged );

src/app/qgsdxfexportdialog.cpp

@@ -771,7 +771,7 @@ QgsDxfExportDialog::QgsDxfExportDialog( QWidget *parent, Qt::WindowFlags f )
   connect( mDeselectDataDefinedBlocks, &QAbstractButton::clicked, this, &QgsDxfExportDialog::deselectDataDefinedBlocks );
   connect( buttonBox, &QDialogButtonBox::helpRequested, this, &QgsDxfExportDialog::showHelp );
 
-  connect( mFileName, &QgsFileWidget::fileChanged, this, [this]( const QString &filePath ) {
+  connect( mFileName, &QgsFileWidget::fileChanged, this, [=]( const QString &filePath ) {
     QgsSettings settings;
     QFileInfo tmplFileInfo( filePath );
     settings.setValue( QStringLiteral( "qgis/lastDxfDir" ), tmplFileInfo.absolutePath() );

src/app/qgsfixattributedialog.cpp

@@ -65,10 +65,10 @@ void QgsFixAttributeDialog::init( QgsVectorLayer *layer, const QgsAttributeEdito
   {
     buttonBox->addButton( cancelAllBtn, QDialogButtonBox::ActionRole );
     buttonBox->addButton( cancelAllInvalidBtn, QDialogButtonBox::ActionRole );
-    connect( cancelAllBtn, &QAbstractButton::clicked, this, [this]() {
+    connect( cancelAllBtn, &QAbstractButton::clicked, this, [=]() {
       done( DiscardAll );
     } );
-    connect( cancelAllInvalidBtn, &QAbstractButton::clicked, this, [this]() {
+    connect( cancelAllInvalidBtn, &QAbstractButton::clicked, this, [=]() {
       done( PasteValid );
     } );
     buttonBox->button( QDialogButtonBox::Cancel )->setText( tr( "Skip" ) );
@@ -78,7 +78,7 @@ void QgsFixAttributeDialog::init( QgsVectorLayer *layer, const QgsAttributeEdito
     storeAllInvalidBtn->setText( tr( "Paste Anyway" ) );
   }
   buttonBox->addButton( storeAllInvalidBtn, QDialogButtonBox::ActionRole );
-  connect( storeAllInvalidBtn, &QAbstractButton::clicked, this, [this]() {
+  connect( storeAllInvalidBtn, &QAbstractButton::clicked, this, [=]() {
     done( PasteAll );
   } );
   connect( buttonBox, &QDialogButtonBox::rejected, this, &QgsFixAttributeDialog::reject );

src/app/qgsidentifyresultsdialog.cpp

@@ -1721,11 +1721,11 @@ void QgsIdentifyResultsDialog::contextMenuEvent( QContextMenuEvent *event )
   mActionPopup->addAction( tr( "Clear Results" ), this, &QgsIdentifyResultsDialog::clear );
   mActionPopup->addAction( tr( "Clear Highlights" ), this, &QgsIdentifyResultsDialog::clearHighlights );
   mActionPopup->addAction( tr( "Highlight All" ), this, &QgsIdentifyResultsDialog::highlightAll );
-  mActionPopup->addAction( tr( "Highlight Layer" ), this, [this] { highlightLayer(); } );
+  mActionPopup->addAction( tr( "Highlight Layer" ), this, [=] { highlightLayer(); } );
   if ( layer && QgsProject::instance()->layerIsEmbedded( layer->id() ).isEmpty() )
   {
-    mActionPopup->addAction( tr( "Activate Layer" ), this, [this] { activateLayer(); } );
-    mActionPopup->addAction( tr( "Layer Properties…" ), this, [this] { layerProperties(); } );
+    mActionPopup->addAction( tr( "Activate Layer" ), this, [=] { activateLayer(); } );
+    mActionPopup->addAction( tr( "Layer Properties…" ), this, [=] { layerProperties(); } );
   }
   mActionPopup->addSeparator();
   mActionPopup->addAction( tr( "Expand All" ), this, &QgsIdentifyResultsDialog::expandAll );

src/app/qgslayernotesmanager.cpp

@@ -50,7 +50,7 @@ QgsLayerNotesDialog::QgsLayerNotesDialog( QWidget *parent )
   QDialogButtonBox *buttonBox = new QDialogButtonBox( QDialogButtonBox::Save | QDialogButtonBox::Help | QDialogButtonBox::Cancel );
   connect( buttonBox->button( QDialogButtonBox::Save ), &QPushButton::clicked, this, &QDialog::accept );
   connect( buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject );
-  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [] {
+  connect( buttonBox, &QDialogButtonBox::helpRequested, this, [=] {
     QgsHelp::openHelp( QStringLiteral( "introduction/general_tools.html#layer-notes" ) );
   } );
   layout->addWidget( buttonBox );

src/app/qgsmapcanvasdockwidget.cpp

@@ -101,8 +101,8 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
   connect( mMapCanvas, &QgsMapCanvas::destinationCrsChanged, this, &QgsMapCanvasDockWidget::mapCrsChanged );
   connect( mMapCanvas, &QgsMapCanvas::destinationCrsChanged, this, &QgsMapCanvasDockWidget::updateExtentRect );
   connect( mActionZoomFullExtent, &QAction::triggered, mMapCanvas, &QgsMapCanvas::zoomToProjectExtent );
-  connect( mActionZoomToLayers, &QAction::triggered, mMapCanvas, [this] { QgisApp::instance()->layerTreeView()->defaultActions()->zoomToLayers( mMapCanvas ); } );
-  connect( mActionZoomToSelected, &QAction::triggered, mMapCanvas, [this] { mMapCanvas->zoomToSelected(); } );
+  connect( mActionZoomToLayers, &QAction::triggered, mMapCanvas, [=] { QgisApp::instance()->layerTreeView()->defaultActions()->zoomToLayers( mMapCanvas ); } );
+  connect( mActionZoomToSelected, &QAction::triggered, mMapCanvas, [=] { mMapCanvas->zoomToSelected(); } );
   mapCrsChanged();
 
   QgsMapSettingsAction *settingsAction = new QgsMapSettingsAction( settingsMenu );
@@ -127,11 +127,11 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
 
   connect( mActionRename, &QAction::triggered, this, &QgsMapCanvasDockWidget::renameTriggered );
   mActionShowAnnotations->setChecked( mMapCanvas->annotationsVisible() );
-  connect( mActionShowAnnotations, &QAction::toggled, this, [this]( bool checked ) { mMapCanvas->setAnnotationsVisible( checked ); } );
+  connect( mActionShowAnnotations, &QAction::toggled, this, [=]( bool checked ) { mMapCanvas->setAnnotationsVisible( checked ); } );
   mActionShowCursor->setChecked( true );
-  connect( mActionShowCursor, &QAction::toggled, this, [this]( bool checked ) { mXyMarker->setVisible( checked ); } );
+  connect( mActionShowCursor, &QAction::toggled, this, [=]( bool checked ) { mXyMarker->setVisible( checked ); } );
   mActionShowExtent->setChecked( false );
-  connect( mActionShowExtent, &QAction::toggled, this, [this]( bool checked ) { mExtentRubberBand->setVisible( checked ); updateExtentRect(); } );
+  connect( mActionShowExtent, &QAction::toggled, this, [=]( bool checked ) { mExtentRubberBand->setVisible( checked ); updateExtentRect(); } );
   mActionShowLabels->setChecked( true );
   connect( mActionShowLabels, &QAction::toggled, this, &QgsMapCanvasDockWidget::showLabels );
 
@@ -143,7 +143,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
   mSyncScaleCheckBox = settingsAction->syncScaleCheckBox();
   mScaleFactorWidget = settingsAction->scaleFactorSpinBox();
 
-  connect( mSyncSelectionCheck, &QCheckBox::toggled, this, [this]( bool checked ) {
+  connect( mSyncSelectionCheck, &QCheckBox::toggled, this, [=]( bool checked ) {
     autoZoomToSelection( checked );
     if ( checked )
     {
@@ -154,7 +154,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mSyncExtentCheck, &QCheckBox::toggled, this, [this]( bool checked ) {
+  connect( mSyncExtentCheck, &QCheckBox::toggled, this, [=]( bool checked ) {
     if ( checked )
     {
       syncViewCenter( mMainCanvas );
@@ -164,7 +164,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mScaleCombo, &QgsScaleComboBox::scaleChanged, this, [this]( double scale ) {
+  connect( mScaleCombo, &QgsScaleComboBox::scaleChanged, this, [=]( double scale ) {
     if ( !mBlockScaleUpdate )
     {
       mBlockScaleUpdate = true;
@@ -172,7 +172,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
       mBlockScaleUpdate = false;
     }
   } );
-  connect( mMapCanvas, &QgsMapCanvas::scaleChanged, this, [this]( double scale ) {
+  connect( mMapCanvas, &QgsMapCanvas::scaleChanged, this, [=]( double scale ) {
     if ( !mBlockScaleUpdate )
     {
       mBlockScaleUpdate = true;
@@ -181,7 +181,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mRotationEdit, static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [this]( double value ) {
+  connect( mRotationEdit, static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [=]( double value ) {
     if ( !mBlockRotationUpdate )
     {
       mBlockRotationUpdate = true;
@@ -191,7 +191,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mMapCanvas, &QgsMapCanvas::rotationChanged, this, [this]( double rotation ) {
+  connect( mMapCanvas, &QgsMapCanvas::rotationChanged, this, [=]( double rotation ) {
     if ( !mBlockRotationUpdate )
     {
       mBlockRotationUpdate = true;
@@ -200,7 +200,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mMagnificationEdit, static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [this]( double value ) {
+  connect( mMagnificationEdit, static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, [=]( double value ) {
     if ( !mBlockMagnificationUpdate )
     {
       mBlockMagnificationUpdate = true;
@@ -210,7 +210,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
     }
   } );
 
-  connect( mMapCanvas, &QgsMapCanvas::magnificationChanged, this, [this]( double factor ) {
+  connect( mMapCanvas, &QgsMapCanvas::magnificationChanged, this, [=]( double factor ) {
     if ( !mBlockMagnificationUpdate )
     {
       mBlockMagnificationUpdate = true;
@@ -220,13 +220,13 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
   } );
 
   connect( mScaleFactorWidget, static_cast<void ( QgsDoubleSpinBox::* )( double )>( &QgsDoubleSpinBox::valueChanged ), this, &QgsMapCanvasDockWidget::mapScaleChanged );
-  connect( mSyncScaleCheckBox, &QCheckBox::toggled, this, [this]( bool checked ) {
+  connect( mSyncScaleCheckBox, &QCheckBox::toggled, this, [=]( bool checked ) {
     if ( checked )
       mapScaleChanged();
   } );
 
   mResizeTimer.setSingleShot( true );
-  connect( &mResizeTimer, &QTimer::timeout, this, [this] {
+  connect( &mResizeTimer, &QTimer::timeout, this, [=] {
     mBlockExtentSync = false;
 
     if ( mSyncScaleCheckBox->isChecked() )
@@ -247,7 +247,7 @@ QgsMapCanvasDockWidget::QgsMapCanvasDockWidget( const QString &name, QWidget *pa
   QToolButton *toggleButton = mDockableWidgetHelper->createDockUndockToolButton();
   toggleButton->setToolTip( tr( "Dock 2D Map View" ) );
   mToolbar->addWidget( toggleButton );
-  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [this]() {
+  connect( mDockableWidgetHelper, &QgsDockableWidgetHelper::closed, this, [=]() {
     close();
   } );
 }
@@ -454,7 +454,7 @@ void QgsMapCanvasDockWidget::menuAboutToShow()
   {
     actionFollowMain->setChecked( true );
   }
-  connect( actionFollowMain, &QAction::triggered, this, [this] {
+  connect( actionFollowMain, &QAction::triggered, this, [=] {
     mMapCanvas->setTheme( QString() );
     mMapCanvas->refresh();
   } );

src/app/qgsmapsavedialog.cpp

@@ -88,9 +88,9 @@ QgsMapSaveDialog::QgsMapSaveDialog( QWidget *parent, QgsMapCanvas *mapCanvas, co
   }
   mDrawDecorations->setText( tr( "Draw active decorations: %1" ).arg( !activeDecorations.isEmpty() ? activeDecorations : tr( "none" ) ) );
 
-  connect( mResolutionSpinBox, &QSpinBox::editingFinished, this, [this] { updateDpi( mResolutionSpinBox->value() ); } );
-  connect( mOutputWidthSpinBox, &QSpinBox::editingFinished, this, [this] { updateOutputWidth( mOutputWidthSpinBox->value() ); } );
-  connect( mOutputHeightSpinBox, &QSpinBox::editingFinished, this, [this] { updateOutputHeight( mOutputHeightSpinBox->value() ); } );
+  connect( mResolutionSpinBox, &QSpinBox::editingFinished, this, [=] { updateDpi( mResolutionSpinBox->value() ); } );
+  connect( mOutputWidthSpinBox, &QSpinBox::editingFinished, this, [=] { updateOutputWidth( mOutputWidthSpinBox->value() ); } );
+  connect( mOutputHeightSpinBox, &QSpinBox::editingFinished, this, [=] { updateOutputHeight( mOutputHeightSpinBox->value() ); } );
   connect( mExtentGroupBox, &QgsExtentGroupBox::extentChanged, this, &QgsMapSaveDialog::updateExtent );
   connect( mScaleWidget, &QgsScaleWidget::scaleChanged, this, &QgsMapSaveDialog::updateScale );
   connect( mLockAspectRatio, &QgsRatioLockButton::lockChanged, this, &QgsMapSaveDialog::lockChanged );
@@ -424,7 +424,7 @@ void QgsMapSaveDialog::copyToClipboard()
     mapRendererTask->addDecorations( mDecorations );
   }
 
-  connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, this, [this, img, p] {
+  connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, this, [=] {
     QApplication::clipboard()->setImage( *img, QClipboard::Clipboard );
     QApplication::restoreOverrideCursor();
     QgisApp::instance()->messageBar()->pushSuccess( tr( "Save as image" ), tr( "Successfully copied map to clipboard" ) );
@@ -433,7 +433,7 @@ void QgsMapSaveDialog::copyToClipboard()
     delete img;
     setEnabled( true );
   } );
-  connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, this, [this, p, img]( int ) {
+  connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, this, [=]( int ) {
     QApplication::restoreOverrideCursor();
     QgisApp::instance()->messageBar()->pushWarning( tr( "Save as image" ), tr( "Could not copy the map to clipboard" ) );
 
@@ -481,10 +481,10 @@ void QgsMapSaveDialog::onAccepted()
 
         mapRendererTask->setSaveWorldFile( saveWorldFile() );
 
-        connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, [fileNameAndFilter] {
+        connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, [=] {
           QgisApp::instance()->messageBar()->pushSuccess( tr( "Save as image" ), tr( "Successfully saved map to <a href=\"%1\">%2</a>" ).arg( QUrl::fromLocalFile( fileNameAndFilter.first ).toString(), QDir::toNativeSeparators( fileNameAndFilter.first ) ) );
         } );
-        connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, []( int error ) {
+        connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, [=]( int error ) {
           switch ( error )
           {
             case QgsMapRendererTask::ImageAllocationFail:
@@ -573,10 +573,10 @@ void QgsMapSaveDialog::onAccepted()
           mapRendererTask->setExportMetadata( exportMetadata() );
         }
 
-        connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, [fileName] {
+        connect( mapRendererTask, &QgsMapRendererTask::renderingComplete, [=] {
           QgisApp::instance()->messageBar()->pushSuccess( tr( "Save as PDF" ), tr( "Successfully saved map to <a href=\"%1\">%2</a>" ).arg( QUrl::fromLocalFile( fileName ).toString(), QDir::toNativeSeparators( fileName ) ) );
         } );
-        connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, []( int ) {
+        connect( mapRendererTask, &QgsMapRendererTask::errorOccurred, [=]( int ) {
           QgisApp::instance()->messageBar()->pushWarning( tr( "Save as PDF" ), tr( "Could not save the map to PDF" ) );
         } );
 

src/app/qgsmapthemes.cpp

@@ -50,7 +50,7 @@ QgsMapThemes::QgsMapThemes()
   mReplaceMenu = new QMenu( tr( "Replace Theme" ) );
   mMenu->addMenu( mReplaceMenu );
   mActionRenameCurrentPreset = mMenu->addAction( tr( "Rename Current Theme…" ), this, &QgsMapThemes::renameCurrentPreset );
-  mActionAddPreset = mMenu->addAction( tr( "Add Theme…" ), this, [this] { addPreset(); } );
+  mActionAddPreset = mMenu->addAction( tr( "Add Theme…" ), this, [=] { addPreset(); } );
   mMenuSeparator = mMenu->addSeparator();
 
   mActionRemoveCurrentPreset = mMenu->addAction( tr( "Remove Current Theme" ), this, &QgsMapThemes::removeCurrentPreset );

src/app/qgsmaptoolfeatureaction.cpp

@@ -149,10 +149,10 @@ bool QgsMapToolFeatureAction::doAction( QgsVectorLayer *layer, int x, int y )
           featureTitle = FID_TO_STRING( feature.id() );
 
         QAction *featureAction = featureMenu->addAction( featureTitle );
-        connect( featureAction, &QAction::triggered, this, [this, layer, feature, point] { doActionForFeature( layer, feature, point ); } );
+        connect( featureAction, &QAction::triggered, this, [=] { doActionForFeature( layer, feature, point ); } );
       }
       QAction *allFeatureAction = featureMenu->addAction( tr( "All Features" ) );
-      connect( allFeatureAction, &QAction::triggered, this, [this, features, layer, point] {
+      connect( allFeatureAction, &QAction::triggered, this, [=] {
         for ( const QgsFeature &feature : std::as_const( features ) )
         {
           doActionForFeature( layer, feature, point );

src/app/qgsmaptooloffsetcurve.cpp

@@ -606,7 +606,7 @@ void QgsMapToolOffsetCurve::createUserInputWidget()
   connect( mUserInputWidget, &QgsOffsetUserWidget::offsetEditingFinished, this, &QgsMapToolOffsetCurve::applyOffsetFromWidget );
   connect( mUserInputWidget, &QgsOffsetUserWidget::offsetEditingCanceled, this, &QgsMapToolOffsetCurve::cancel );
 
-  connect( mUserInputWidget, &QgsOffsetUserWidget::offsetConfigChanged, this, [this] { updateGeometryAndRubberBand( mUserInputWidget->offset() ); } );
+  connect( mUserInputWidget, &QgsOffsetUserWidget::offsetConfigChanged, this, [=] { updateGeometryAndRubberBand( mUserInputWidget->offset() ); } );
 }
 
 void QgsMapToolOffsetCurve::deleteUserInputWidget()
@@ -710,16 +710,16 @@ QgsOffsetUserWidget::QgsOffsetUserWidget( QWidget *parent )
   mOffsetSpinBox->installEventFilter( this );
   connect( mOffsetSpinBox, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, &QgsOffsetUserWidget::offsetChanged );
 
-  connect( mJoinStyleComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this] { QgsSettingsRegistryCore::settingsDigitizingOffsetJoinStyle->setValue( static_cast< Qgis::JoinStyle >( mJoinStyleComboBox->currentData().toInt() ) ); emit offsetConfigChanged(); } );
-  connect( mQuadrantSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QSpinBox::valueChanged ), this, [this]( const int quadSegments ) { QgsSettingsRegistryCore::settingsDigitizingOffsetQuadSeg->setValue( quadSegments ); emit offsetConfigChanged(); } );
-  connect( mMiterLimitSpinBox, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [this]( double miterLimit ) { QgsSettingsRegistryCore::settingsDigitizingOffsetMiterLimit->setValue( miterLimit ); emit offsetConfigChanged(); } );
-  connect( mCapStyleComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this] { QgsSettingsRegistryCore::settingsDigitizingOffsetCapStyle->setValue( static_cast< Qgis::EndCapStyle >( mCapStyleComboBox->currentData().toInt() ) ); emit offsetConfigChanged(); } );
+  connect( mJoinStyleComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=] { QgsSettingsRegistryCore::settingsDigitizingOffsetJoinStyle->setValue( static_cast< Qgis::JoinStyle >( mJoinStyleComboBox->currentData().toInt() ) ); emit offsetConfigChanged(); } );
+  connect( mQuadrantSpinBox, static_cast<void ( QSpinBox::* )( int )>( &QSpinBox::valueChanged ), this, [=]( const int quadSegments ) { QgsSettingsRegistryCore::settingsDigitizingOffsetQuadSeg->setValue( quadSegments ); emit offsetConfigChanged(); } );
+  connect( mMiterLimitSpinBox, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, [=]( double miterLimit ) { QgsSettingsRegistryCore::settingsDigitizingOffsetMiterLimit->setValue( miterLimit ); emit offsetConfigChanged(); } );
+  connect( mCapStyleComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=] { QgsSettingsRegistryCore::settingsDigitizingOffsetCapStyle->setValue( static_cast< Qgis::EndCapStyle >( mCapStyleComboBox->currentData().toInt() ) ); emit offsetConfigChanged(); } );
 
   const bool showAdvanced = QgsSettingsRegistryCore::settingsDigitizingOffsetShowAdvanced->value();
   mShowAdvancedButton->setChecked( showAdvanced );
   mAdvancedConfigWidget->setVisible( showAdvanced );
   connect( mShowAdvancedButton, &QToolButton::clicked, mAdvancedConfigWidget, &QWidget::setVisible );
-  connect( mShowAdvancedButton, &QToolButton::clicked, this, []( const bool clicked ) { QgsSettingsRegistryCore::settingsDigitizingConvertToCurveDistanceTolerance->setValue( clicked ); } );
+  connect( mShowAdvancedButton, &QToolButton::clicked, this, [=]( const bool clicked ) { QgsSettingsRegistryCore::settingsDigitizingConvertToCurveDistanceTolerance->setValue( clicked ); } );
 
   // config focus
   setFocusProxy( mOffsetSpinBox );

src/app/qgsmaptoolselectionhandler.cpp

@@ -207,7 +207,7 @@ void QgsMapToolSelectionHandler::selectFeaturesMoveEvent( QgsMapMouseEvent *e )
       setSelectedGeometry( QgsGeometry::fromPointXY( toMapCoordinates( e->pos() ) ), e->modifiers() );
       mOnMouseMoveDelayTimer = std::make_unique<QTimer>();
       mOnMouseMoveDelayTimer->setSingleShot( true );
-      connect( mOnMouseMoveDelayTimer.get(), &QTimer::timeout, this, [this, e] {
+      connect( mOnMouseMoveDelayTimer.get(), &QTimer::timeout, this, [=] {
         if ( !mMoveLastCursorPos.isNull() )
         {
           setSelectedGeometry( QgsGeometry::fromPointXY( toMapCoordinates( mMoveLastCursorPos ) ), e->modifiers() );

src/app/qgsmaptoolsimplify.cpp

@@ -57,16 +57,16 @@ QgsSimplifyUserInputWidget::QgsSimplifyUserInputWidget( QWidget *parent )
 
   // communication with map tool
   connect( mToleranceSpinBox, static_cast<void ( QDoubleSpinBox::* )( double )>( &QDoubleSpinBox::valueChanged ), this, &QgsSimplifyUserInputWidget::toleranceChanged );
-  connect( mToleranceUnitsComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this]( int ) { emit toleranceUnitsChanged( mToleranceUnitsComboBox->currentData().value<Qgis::MapToolUnit>() ); } );
-  connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this]( const int method ) { emit methodChanged( ( QgsMapToolSimplify::Method ) method ); } );
-  connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this] {
+  connect( mToleranceUnitsComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]( int ) { emit toleranceUnitsChanged( mToleranceUnitsComboBox->currentData().value<Qgis::MapToolUnit>() ); } );
+  connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]( const int method ) { emit methodChanged( ( QgsMapToolSimplify::Method ) method ); } );
+  connect( mMethodComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=] {
     if ( mMethodComboBox->currentData().toInt() != QgsMapToolSimplify::Smooth )
       mOptionsStackedWidget->setCurrentIndex( 0 );
     else
       mOptionsStackedWidget->setCurrentIndex( 1 );
   } );
 
-  connect( mOffsetSpin, static_cast<void ( QSpinBox::* )( int )>( &QSpinBox::valueChanged ), this, [this]( const int offset ) { emit smoothOffsetChanged( offset / 100.0 ); } );
+  connect( mOffsetSpin, static_cast<void ( QSpinBox::* )( int )>( &QSpinBox::valueChanged ), this, [=]( const int offset ) { emit smoothOffsetChanged( offset / 100.0 ); } );
   connect( mIterationsSpin, static_cast<void ( QSpinBox::* )( int )>( &QSpinBox::valueChanged ), this, &QgsSimplifyUserInputWidget::smoothIterationsChanged );
 
   connect( mButtonBox, &QDialogButtonBox::accepted, this, &QgsSimplifyUserInputWidget::accepted );

src/app/qgsmergeattributesdialog.cpp

@@ -455,7 +455,7 @@ QComboBox *QgsMergeAttributesDialog::createMergeComboBox( QMetaType::Type column
   newComboBox->addItem( tr( "Manual Value" ), QStringLiteral( "manual" ) );
   newComboBox->addItem( tr( "Set to NULL" ), QStringLiteral( "null" ) );
 
-  connect( newComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [this, newComboBox, column]() {
+  connect( newComboBox, static_cast<void ( QComboBox::* )( int )>( &QComboBox::currentIndexChanged ), this, [=]() {
     bool isManual = newComboBox->currentData() == QLatin1String( "manual" );
     updateManualWidget( column, isManual );
     refreshMergedValue( column );