gtk4 (4.12.3+ds-1) unstable; urgency=medium

gtk4 (4.12.3+ds-1) unstable; urgency=medium

  * New upstream release
    - GtkWindow:
      + Don't assume titlebars are GtkHeaderBar
        (https://gitlab.gnome.org/GNOME/gtk/-/issues/6116)
    - GtkTreeView:
      + Fix a crash in gtk_tree_view_is_blank_at_pos
        (https://gitlab.gnome.org/GNOME/gtk/-/issues/6114)
    - printing:
      + Fix some issues with the portal implementation
        (https://gitlab.gnome.org/GNOME/gtk/-/commit/03679fe6bf5ae391bd7cb21ad0492f530c86cd5e)
    - GSK:
      + Some optimizations in the GL renderer
        (https://gitlab.gnome.org/GNOME/gtk/-/commit/3698cadcd21e2a52c30766d311043093ea557b3f,
         https://gitlab.gnome.org/GNOME/gtk/-/commit/d4d0883a924f94fdc89fad50bce9ecad3128e0f3,
         https://gitlab.gnome.org/GNOME/gtk/-/commit/0030c572d47f551847be0aed8054d4df34afffda)
      + Fix memory leaks in the Broadway renderer
        (https://gitlab.gnome.org/GNOME/gtk/-/issues/6120)
    - demos:
      + Fix a crash in gtk4-demo
        (https://gitlab.gnome.org/GNOME/gtk/-/issues/6113)

[dgit import unpatched gtk4 4.12.3+ds-1]