4.22.0 (stable) 2026-03-12

Some unstable API has been removed.
The corresponding API was removed in gtk 4.22.0.

* Fix build with build-deprecated-api=false.
  (Kjell Ahlstedt)

Gtk:
* Add TryExpression.
* FileFilter: Add add_mime_types().
* SearchEntry2: Add property_key_capture_widget().
* Svg: Add get_state_names(). Remove get_n_states().
  (Kjell Ahlstedt)

Documentation:
* Gtk::GestureClick: Improve the class description.
  (Kjell Ahlstedt) Issue #168 (gkv311)

Tests:
* Add test of Gtk::TryExpression.
  (Kjell Ahlstedt)

Build:
* Require gtk4 >= 4.22.0
  (Kjell Ahlstedt)