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 Hackfest # | Venue | Date | Page
 ---------- | ----- | ---- | -----
-26 | Switzerland - to be confirmed | 2025? | 
-27 |  Slovakia ? | Sept. 2024 | 
+28 | Switzerland | 2025 | 
+29 |  Slovakia  | Sept. 2024 | 
+25 | Vienna | 6-11 November 2023 | [Join sprint with OSGeo](https://wiki.osgeo.org/wiki/OSGeo_Community_Sprint_2023#Participants)
 25 | 's-Hertogenbosch | 20-23 April 2023 | ['s-Hertogenbosch 2023](https://github.com/qgis/QGIS/wiki/25th-Contributor-Meeting-in-'s-Hertogenbosch)
 24 | Firenze | 18. August- 22. August 2022 |[Firenze 2022](https://github.com/qgis/QGIS/wiki/24th-Contributors-Meeting-in-Firenze) 
 ~24~ | ~Nødebo~| ~8. August- 23. August 2020~|~[Nødebo 2020](https://github.com/qgis/QGIS/wiki/25th-Developer-Meeting-in-N%C3%B8debo,-Denmark)~