Add release notes for v0.4.4

Author: freakboy3742

changes/2919.bugfix.md

@@ -2,6 +2,20 @@
 
 <!-- towncrier release notes start -->
 
+## 0.4.4 (2026-07-08)
+
+### Bugfixes
+
+* The Toga bootstrap now enforces a dependency on `libgirepository 2.0`. This is required by changes introduced in Toga 0.5.5. ([#2919](https://github.com/beeware/briefcase/issues/2919))
+
+### Backward Incompatible Changes
+
+* The Toga app generated by Briefcase is no longer compatible with Debian 12 or Ubuntu 22.04. ([#2919](https://github.com/beeware/briefcase/issues/2919))
+
+### Misc
+
+* [#2920](https://github.com/beeware/briefcase/issues/2920), [#2921](https://github.com/beeware/briefcase/issues/2921), [#2922](https://github.com/beeware/briefcase/issues/2922), [#2923](https://github.com/beeware/briefcase/issues/2923), [#2924](https://github.com/beeware/briefcase/issues/2924), [#2925](https://github.com/beeware/briefcase/issues/2925), [#2926](https://github.com/beeware/briefcase/issues/2926)
+
 ## 0.4.3 (2026-07-02)
 
 ### Features