Overview of Changes in 4.21.6, 27-02-2026
=========================================

* GtkTryExpression is a new type of expression that allows for fallback

* GtkSvg:
 - Setting states will have immediate effect when paused
 - Various optimizations and crash fixes

* Media:
 - The gstreamer backend will use gapless looping with gstreamer 1.28

* Printing:
 - Avoid applying the n-copies setting twice

* Debugging:
 - The inspector can show GSK profiling information with GSK_DEBUG=profile
 - gtk4-rendernode-tool has gained a new filter command for node manipulation

* Bugs fixed:
  - #5794 Click gesture doesn't reset properly (Carlos Garnacho)
  - #6054 GtkSwitch ignores one click after dragging the handle (Carlos
    Garnacho)
  - #7432 unexpected enter event before popover close event (Alessandro Astone)
  - #7605 Printing two copies prints four copies (Lucas Baudin)
  - #7844 Debugging weird gesture behaviour (Carlos Garnacho)
  - #7901 Add `key-capture-widget` property to `GtkSearchEntry` (Zoey Ahmed)
  - #7930 "Broken accounting of active state for widget" (Carlos Garnacho)
  - #7959 `GtkFilterListModel:watch-items` causes `GtkFilterListModel:n-items`
    to not notify (Georges Basile Stavracas Neto)
  - #7994 `Gtk.Expression.bind` fallback expression
  - #8017 Icon Shaper crash when opening a file (Matthias Clasen)
  - #8023 Icon editor crash when using a `rect` shape (Matthias Clasen)
  - #8025 Shaper crashes when opening an icon with a line (Matthias Clasen)
  - #8035 svg: rotate transformation does not behave as expected (Matthias
    Clasen)
  - #8038 GNOME Tour window is incorrectly sized/placed in GNOME 50 (Sebastian
    Keller)
  - #8040 Mismatches between GtkSvg and GtkIconPaintable for symbolic icons
    (Matthias Clasen)
  - #8041 Legacy icons from gtk4-demo aren't recolored in GtkSvg (Matthias
    Clasen)
  - #8042 4.21: Application Class demo doesn't work (Matthias Clasen)
  - #8043 Instantaneously setting state for GtkSvg (Matthias Clasen)
  - #8045 GtkFileFilter batch formats function (for glycin)
  - #8051 Shaper: crash when opening the states popover (Matthias Clasen)
  - #8053 gradient rendering bug (Benjamin Otte)
  - #8055 Switching GtkSvg states doesn't work correctly
  - #8064 Shaper: stroke width defaults changed (Matthias Clasen)
  - !7541 gdk/wayland/dmabuf: Some cleanups (Marco Trevisan (Treviño))
  - !8532 macos: fix deprecation messages (Arjan Molenaar)
  - !8748 surface: Ignore events for unmapped surface (Alessandro Astone)
  - !9289 gtkgstmediafile: Use gapless looping (Adrien Plazas)
  - !9366 Plug GTask leaks (Sergey Bugaev)
  - !9385 popoverbin: Take into account gesture coordinates and
    triggers_context_menu (Maximiliano Sandoval)
  - !9412 gtkwidget: Improve cancellation/denial of gestures on active input
    (Carlos Garnacho)
  - !9413 node editor: Stop using support-save (Matthias Clasen)
  - !9414 android: Init cleanup & Add deprecation checker utility (Florian
    "sp1rit"​)
  - !9415 Add some more profiling information (Benjamin Otte)
  - !9416 gtkapplication: Only keep window state if enabled (Adrian Vovk)
  - !9417 ci: Use EXTRA_MESON_FLAGS in the gnomeos job (Jordan Petridis)
  - !9420 snapshot: Avoid scaling textures (Matthias Clasen)
  - !9421 application: Fix private comments (Maximiliano Sandoval)
  - !9422 Update Lithuanian translation
  - !9424 Add even more profiling and heatmap stuff (Benjamin Otte)
  - !9425 Add gtk4-rendernode-tool filter (Benjamin Otte)
  - !9427 icons: Apply stroking consistently (Matthias Clasen)
  - !9429 svg: Fix a crash (Matthias Clasen)
  - !9430 icon editor: Make it work again (Matthias Clasen)
  - !9431 icon editor: Fix up shape editing (Matthias Clasen)
  - !9432 Misc icon editor work (Matthias Clasen)
  - !9433 icons: Open end arrows (Jakub Steiner)
  - !9434 Various improvements, in particular glDisable(GL_BLEND) (Benjamin
    Otte)
  - !9435 docs: Some updates (Matthias Clasen)
  - !9436 Tweak the icon paintable parser again (Matthias Clasen)
  - !9438 node-editor: Improve zoom levels (Benjamin Otte)
  - !9439 node editor: UI perfectionism (Matthias Clasen)
  - !9440 Add GtkTryExpression (Jamie Gravendeel)
  - !9442 icon paintable: Fix up visibility handling (Matthias Clasen)
  - !9443 Revert "directory list: Fix directory changes" (Matthias Clasen)
  - !9445 Add G_GNUC_WARN_UNUSED_RESULT to gsk_rect_intersection() (Benjamin
    Otte)
  - !9446 Improve GPU renderer handling of composite nodes (Benjamin Otte)
  - !9447 demo/shadertoy: Provide GLES shaders (Florian "sp1rit"​)
  - !9448 gsk: Remove duplicated line (Jules Maselbas)
  - !9449 icons: Update to the latest (Jakub Steiner)
  - !9451 Make gsk_render_node_get_children() public (Benjamin Otte)
  - !9453 Fix up icons to work with the symbolic parser (Matthias Clasen)
  - !9454 CI: Make Vulkan work (Benjamin Otte, Alessandro Astone)
  - !9456 icon editor: Support open files by drag'n'drop (g.willems)
  - !9457 icon editor: Add toggle to show the pixel grid (g.willems)
  - !9460 vulkan: Fix type mismatch on 32-bit (Alessandro Astone)
  - !9461 builder: Add initial attribute to constant element (Jamie Gravendeel)
  - !9462 path: Fix alignment issue on 32-bit (Alessandro Astone)
  - !9463 Updated Lithuanian translaton
  - !9465 tools: Add rendernodetool filter texture (Benjamin Otte)
  - !9466 Update Romanian translation
  - !9467 Update Russian translation
  - !9468 Update Bulgarian translation
  - !9469 iconhelper: Respect pixel-size and -gtk-icon-size for icons (Alice
    Mikhaylenko)
  - !9470 inspector: Make data copyable (Matthias Clasen)
  - !9471 vulkan: Use g_get_monotonic_time_ns() in debug code
  - !9472 Update Kazakh translation
  - !9473 Update Czech translation
  - !9474 filefilter: Fix win32 native filechooser not used when any file filter
    uses a mimetype rule (g.willems)
  - !9477 rendernode: Remove leftover debug output from repeat nodes (Sebastian
    Keller)
  - !9478 pathbuilder: preallocate the arrays to fit a 4k page (Benjamin Otte)
  - !9479 svg: Handle fill rules for clip-path (Matthias Clasen)
  - !9480 svg: Optimize allocations a bit (Matthias Clasen)
  - !9481 isolationnode: Add utility to check if features are needed (Benjamin
    Otte, Matthias Clasen)
  - !9482 gsk: Fix setting of the hdr flag (Matthias Clasen)
  - !9485 testsuite: Make a test more robust (Matthias Clasen)
  - !9486 snapshot: Mention optimization in the docs (Matthias Clasen)
  - !9487 builder: Fix initial GObject constant expressions (Jamie Gravendeel)
  - !9488 snapshot: Unpack container nodes (Benjamin Otte)
  - !9490 testsuite: Add missing test files to meson.build (Alessandro Astone)
  - !9491 svg: optimizations (Matthias Clasen)
  - !9492 svg: Fix a corner case (Matthias Clasen)
  - !9493 svg: Fix a corner case (Matthias Clasen)
  - !9494 svg: Implement some conditional processing (Matthias Clasen)
  - !9495 Pass D-Bus a11y details through gtk-shell protocol (Carlos Garnacho)
  - !9497 rendernode tool: Allow matching nodes (Matthias Clasen)
  - !9498 svg: Support a description (Matthias Clasen)
  - !9499 icon editor: Some robustness for the state dialog (Matthias Clasen)
  - !9500 gdk/wayland: Clean up EGL surface when detaching a GdkWaylandGLContext
    (davidaf3)
  - !9501 filefilter: Add plural mime_types function (Matthias Clasen, Peter
    Eisenmann)
  - !9502 svg: Support state updates when paused (Matthias Clasen)
  - !9503 Update Ukrainian translation
  - !9504 svg: More fixes for non-animated state changed (Matthias Clasen)
  - !9506 Update German translation (Christian Kirbach)
  - !9507 Update Greek translation
  - !9509 Update Chinese (China) translation (luming zh)
  - !9510 icon editor: Make a metadata expander (Matthias Clasen)
  - !9511 svg: Fix animating filter attributes (Matthias Clasen)
  - !9513 Update Finnish translation
  - !9514 svg: Make empty language lists static (Matthias Clasen)
  - !9515 Update Basque translation
  - !9516 svg: Fix a corner case of pausing (Matthias Clasen)
  - !9518 Update Slovenian translation
  - !9519 More fixes for instantaneous state changes (Matthias Clasen)
  - !9521 cssimagerecolor: Fix typos (Matthias Clasen)
  - !9522 gsk/gi: Add missing since annotation (Bilal Elmoussaoui)
  - !9524 wayland: Add some color mgmt v2 defines (Matthias Clasen)
  - !9525 Update Spanish translation
  - !9526 Update Lithuanian translation
  - !9527 tooltip: Fix typo in comment (Robert Ancell)
  - !9528 svg: Redo the morph transition (Matthias Clasen)
  - !9529 Update Catalan translation
  - !9531 Fix brokenness in widget active state maintenance (Carlos Garnacho)
  - !9532 Stop using emblem-system-symbolic (Matthias Clasen)
  - !9534 printing: do not do manual copies/number up when the printing portal
    is used (Lucas Baudin)
  - !9535 Small android improvements for 4.22 (Florian "sp1rit"​)
  - !9536 gtkwindow: Also update resize cursor on
    GtkEventControllerMotion::enter (Carlos Garnacho)
  - !9537 Update Brazilian Portuguese translation
  - !9539 Update Turkish translation
  - !9540 Update Czech translation (AsciiWolf)
  - !9541 docs: Clarify CSS custom properties support across GTK releases
    (Leonid Zaburunov)
  - !9543 svg crash fixes (Matthias Clasen)
  - !9544 Update French translation
  - !9546 Another round of crash fixes (Matthias Clasen)

* Translation updates:
  - Basque (Asier Saratsua Garmendia)
  - Bulgarian (Alexander Alexandrov Shopov)
  - Catalan (Victor Dargallo)
  - Chinese (China) (luming zh)
  - Czech (AsciiWolf, Daniel Rusek)
  - Finnish (Jiri Grönroos)
  - French (Guillaume Bernard)
  - German (Christian Kirbach)
  - Greek, Modern (1453-) (Efstathios Iosifidis)
  - Kazakh (Baurzhan Muftakhidinov)
  - Lithuanian (Aurimas Černius, Aurimas Aurimas Černius)
  - Portuguese (Brazil) (Rafael Fontenelle)
  - Romanian (Antonio Marin)
  - Russian (Artur S0)
  - Slovenian (Martin)
  - Spanish (Daniel Mustieles)
  - Turkish (Emin Tufan Çetin)
  - Ukrainian (Yuri Chornoivan)