3.57.0 - 2026-07-20
-------------------

* doc: Update tutorial and examples :mr:`536` :mr:`537` :mr:`538`
* Fix memory leak when initializing GTK templates :mr:`526`
* Fix potential buffer overflow errors where the C API exposes `GArray`'s :mr:`540` :mr:`550`
* gio: Support creating `GFile` child with slash operator, similar to `pathlib.Path` :mr:`539`
* Refactor memory management for marshaller cache :mr:`490` :mr:`517`
* Fix deprecation warning for register_object :mr:`542`
* Find libraries automatically on Windows :mr:`415`
* Fix crash when `user_data` is defined before callback :mr:`554`
* Avoid extraneous deprecation warnings :mr:`545`
* Support generic annotations on `Async` :mr:`547`
* fix: Simplify string prefix handling :mr:`548`
* doc: Use gobject-linter for linting GObject code :mr:`543` :mr:`551` :mr:`552`