Updated changelog

CHANGELOG.md

@@ -1,3 +1,13 @@
+# 3.3.0
+
+* Undeprecated `transaction`, see [#1139](https://github.com/mobxjs/mobx/issues/1139)
+* Use `.mjs` extension for module build [1131](https://github.com/mobxjs/mobx/issues/1131)
+* Fixed typings of reaction [#1136](https://github.com/mobxjs/mobx/issues/1136)
+* It is now possible to re-define a computed property [#1121](https://github.com/mobxjs/mobx/issues/1121)
+* Print an helpful error message when using `@action` on a getter [#971](https://github.com/mobxjs/mobx/issues/971)
+* Improved typings of intercept [#1119](https://github.com/mobxjs/mobx/issues/1119)
+* Made code base Prettier [#1103](https://github.com/mobxjs/mobx/issues/1103)
+
 # 3.2.2
 
 * Fixes a bug (or a known limitation) described in [#1092](https://github.com/mobxjs/mobx/issue/1092/). It is now possible to have different observable administration on different levels of the prototype chain. By @guillaumeleclerc