Hi,
GNOME 40.4 is now available. This is a stable bugfix release for GNOME 40. All operating systems shipping GNOME 40 are encouraged to upgrade.
If you want to compile GNOME 40.4, you can use the official BuildStream project snapshot:
http://download.gnome.org/teams/releng/40.4/gnome-40.4.tar.xz
The list of updated modules and changes is available here:
https://download.gnome.org/core/40/40.4/NEWS
The source packages are available here:
https://download.gnome.org/core/40/40.4/sources/
GNOME 40.4 is designed to be a boring bugfix update for GNOME 40, so it should be safe to upgrade from earlier versions of GNOME 40.
Enjoy,
Matthias Clasen
GNOME Release Team