diff --git a/python/core/auto_generated/qgsunittypes.sip.in b/python/core/auto_generated/qgsunittypes.sip.in
index 72e40b9e2fd..71efb36e862 100644
--- a/python/core/auto_generated/qgsunittypes.sip.in
+++ b/python/core/auto_generated/qgsunittypes.sip.in
@@ -290,6 +290,8 @@ Converts an area unit to its corresponding distance unit, e.g., square meters to
 :param areaUnit: area unit to convert
 
 :return: matching distance unit
+
+.. versionadded:: 3.10
 %End
 
 
diff --git a/src/core/qgsunittypes.h b/src/core/qgsunittypes.h
index 6b20cecbe2a..8e8ea24d33e 100644
--- a/src/core/qgsunittypes.h
+++ b/src/core/qgsunittypes.h
@@ -310,6 +310,7 @@ class CORE_EXPORT QgsUnitTypes
      * Converts an area unit to its corresponding distance unit, e.g., square meters to meters
      * \param areaUnit area unit to convert
      * \returns matching distance unit
+     * \since QGIS 3.10
      */
     Q_INVOKABLE static QgsUnitTypes::DistanceUnit areaToDistanceUnit( QgsUnitTypes::AreaUnit areaUnit );