While the GNOME tool-kit developers have been hard at work on GTK4 roughly the past two years and have kept GTK3 frozen at GTK+ 3.22, a GTK+ 3.24 release is now being worked on to deliver some new features until GTK+ 4.0 is ready to be released…

Source: Phoronix – GTK+ 3.24 To Deliver Some New Features While Waiting For GTK4