Release Notes: Introspection data for gdk-pixbuf, GDK, and GTK is now included in GTK+ itself. The ability to store and retrieve embedded ICC color profiles in PNG and TIFF images was added to gdk-pixbuf. Several issues with client-side windows were resolved. An API to handle printer hard margins was added. A new gdk_screen_get_primary_monitor() function for getting the primary monitor in a multi-monitor setup was added. Many bugs were fixed.
Release Notes: The configuration file and immodules cache locations were backported from GTK+3. Various minor bugs were fixed.
Release Notes: GtkSearchBar, a pop-up search toolbar, and GtkListBox, a vertical container that can sort and filter its children, were added. GtkStack gained position-dependent transitions. Various minor bugs were fixed.
Release Notes: GtkWindow gained support for client-side decorations, for use with Wayland. GtkFileChooser was improved. Various new APIs, widgets, and features were added, such as GtkHeaderBar, GtkPlacesSidebar, GtkStack, and GtkRevealer. The Wayland and Broadway backends were improved. GdkDisplayManager is no longer backend-specific. The symbol exporting functionality was refactored. Further improvements and many bugfixes were made.
Release Notes: Several minor bugs were fixed.
Release Notes: Cycle detection was added to CSS color resolving. The Broadway backend gained various improvements. Several bugs were fixed.