** Description changed: [ Impact ] 4.18.5 is a new bugfix release from upstream: https://gitlab.gnome.org/GNOME/gtk/-/blob/4.18.5/NEWS?ref_type=tags * Bugs fixed: - - #5844 `gdk_surface_get_device_position: assertion 'GDK_IS_SURFACE (surface)' - failed` on popover close (Alessandro Astone) - - #7451 Cairo device scale changes lead to significant performance regression - in cairo blur (Sebastian Keller) (bug 2107245) - - #7479 gtkmm programs fail to start on Windows with AccessKit support enabled - (Matthias Clasen) - - #7482 Epiphany Crash in GTK file chooser when last used directory has - insufficient filesystem permissions: "GFileInfo created without - standard::type" (Philip Withnall) - - #7495 Failed to link with the mold linker (Matthias Clasen) - - #7513 Broken boxed-list ListBox (Sergey Bugaev) - - #7520 XCompose preventing GTK4 applications from launching (again) (Matthias - Clasen) - - #7522 critical when selecting label with use-underline but mnemonic with - screenreader enabled (Markus Göllnitz) - + - #5844 `gdk_surface_get_device_position: assertion 'GDK_IS_SURFACE (surface)' + failed` on popover close (Alessandro Astone) + - #7451 Cairo device scale changes lead to significant performance regression + in cairo blur (Sebastian Keller) (bug 2107245) + - #7479 gtkmm programs fail to start on Windows with AccessKit support enabled + (Matthias Clasen) + - #7482 Epiphany Crash in GTK file chooser when last used directory has + insufficient filesystem permissions: "GFileInfo created without + standard::type" (Philip Withnall) + - #7495 Failed to link with the mold linker (Matthias Clasen) + - #7513 Broken boxed-list ListBox (Sergey Bugaev) + - #7520 XCompose preventing GTK4 applications from launching (again) (Matthias + Clasen) + - #7522 critical when selecting label with use-underline but mnemonic with + screenreader enabled (Markus Göllnitz) [ Test Plan ] Test Case 0 ----------- gtk4 has an extensive build test suite, and failures will fail the build. gtk4 also has thorough autopkgtests. Ensure that the build succeeds and that the autopgktests pass. Test Case 1 ----------- Make sure that opening and saving files from the Firefox and Chromium snaps still work Test Case 2 ----------- snap install portal-test --edge snap run portal-test Verify that the app seems to still work ok Test Case 3 ----------- Install and test gtk4-demo (from the gtk-4-examples package) as well as a few other GTK/GNOME applications like nautilus and gnome-text-editor, and verify that they continue to launch and work as expected. - [ What Could Go Wrong ] Many of the default Ubuntu desktop apps use GTK4. A serious enough regression could severely break the Ubuntu Desktop. Ubuntu includes xdg-desktop-portal-gnome by default which is used for - many snap actions like providing a file chooser. This is critical - functionality for our snaps. The Ubuntu flavors use a different portal - backend, most commonly xdg-desktop-portal-gtk which uses GTK3, so are - not affected by this SRU. - + many snap actions like providing a file chooser using GTK4. This is + critical functionality for our snaps. The Ubuntu flavors use a different + portal backend, most commonly xdg-desktop-portal-gtk which uses GTK3, so + are not affected by this SRU. [ Other info ] gtk4 is included in the GNOME micro release exception. https://wiki.ubuntu.com/StableReleaseUpdates/GNOME
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