Does gnome-shell use gtk3 or gtk4?

[romulasry]

If gtk3, when will it move to gtk4?

Want to know because this package uses gtk3: Tree - rpms/gnome-shell - src.fedoraproject.org

[ebassi (Emmanuele Bassi)]

GNOME Shell (and Mutter) use GTK3 for some of the internals—themes and icons, mostly.

The Extensions application shipped inside GNOME Shell 40 uses GTK4.

@romulasry

If gtk3, when will it move to gtk4?

I don’t think there’s a tracker issue for that.

[garnacho (Carlos Garnacho)]

@ebassi

themes and icons, mostly.

Also server-side window decorations for X11 clients. And X11 event dispatching largely clings on a X11 GdkDisplay.

@ebassi

I don’t think there’s a tracker issue for that.

This came from Is this ported to gtk4, if not when will it be? (#4316) · Issues · GNOME / gnome-shell · GitLab, I think :).

@romulasry

If gtk3, when will it move to gtk4?

This is no run of the mill port, there’s a series of complex tasks that need to happen before we can move away from gtk3, there’s no single timeline and no simple answer.

[fmuellner (Florian Müllner)]

@garnacho

Also server-side window decorations for X11 clients

Also Xembed (legacy status icons) support.