Gnome Shell and Mutter completed transition to GTK4

GNOME Shell user shell and composite manager MUTTER completely transposed to use the GTK4 library and got rid of the rigid dependence on GTK3. In addition, the dependence of Gnome-Desktop-3.0 is replaced by Gnome-Desktop-4 and Gnome-BG-4, and Libnma on Libnma4.

In general, GNOME is still attached to GTK3, since not all applications and libraries are spoiled on GTK4. For example, on the GTK3 remain webkit , Libpeas , Libibus, Viewer of the documents Evince , video player total , viewer of images EOG, Boxes, ConNECTIONS , disks, Simple-scan , Photos and System Monitor.

/Media reports cited above.