Add v4.12.0 to CHANGELOG

CHANGELOG.md

@@ -1,19 +1,13 @@
 # Ember Changelog
 
-## v4.12.0-beta.3 (March 13, 2023)
-
-- [#20388](https://github.com/emberjs/ember.js/pull/20388) [BUGFIX] Don't run getters while applying mixins
-- [#20398](https://github.com/emberjs/ember.js/pull/20398) [BUGFIX] Fix runloop types on TS 5.0+
-
-## v4.12.0-beta.2 (February 27, 2023)
-
-- [#20385](https://github.com/emberjs/ember.js/pull/20385) [BUGFIX] Improve error for owner methods called after destroy
-
-## v4.12.0-beta.1 (February 20, 2023)
+## v4.12.0 (April 3, 2023)
 
 - [#20352](https://github.com/emberjs/ember.js/pull/20352) [FEATURE] Enable generating Typescript blueprints when `isTypeScriptProject` is true without additional environment variables per [RFC #800](https://rfcs.emberjs.com/id/0800-ts-adoption-plan).
 - [#20355](https://github.com/emberjs/ember.js/pull/20355) [FEATURE] Enhance the Typescript blueprint for generated services per [RFC #800](https://rfcs.emberjs.com/id/0800-ts-adoption-plan).
 - [#20356](https://github.com/emberjs/ember.js/pull/20356) [FEATURE] Generate signature in Typescript component blueprints per [RFC #800](https://rfcs.emberjs.com/id/0800-ts-adoption-plan).
+- [#20388](https://github.com/emberjs/ember.js/pull/20388) [BUGFIX] Don't run getters while applying mixins
+- [#20398](https://github.com/emberjs/ember.js/pull/20398) [BUGFIX] Fix runloop types on TS 5.0+
+- [#20385](https://github.com/emberjs/ember.js/pull/20385) [BUGFIX] Improve error for owner methods called after destroy
 
 ## v4.11.0 (February 20, 2023)