diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4b1392683f..8da1a73b83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,69 @@
+<a name"2.0.0-alpha.22"></a>
+### 2.0.0-alpha.22 (2015-05-07)
+
+
+#### Bug Fixes
+
+* **brocolli:** escape special regexp characters when building regexps ([a58c9f83](https://github.com/angular/angular/commit/a58c9f83), closes [#1721](https://github.com/angular/angular/issues/1721), [#1752](https://github.com/angular/angular/issues/1752))
+* **build:**
+  * build the broccoli tools with correct typescript version. ([6bba289a](https://github.com/angular/angular/commit/6bba289a))
+  * use correct tsd command to get typings at requested versions ([1205f54d](https://github.com/angular/angular/commit/1205f54d))
+  * revert typescript upgrade which broke the build. ([b5032fd3](https://github.com/angular/angular/commit/b5032fd3))
+  * refer to newest version of hammerjs typings ([a7a94636](https://github.com/angular/angular/commit/a7a94636))
+* **bundle:** update the bundle config to point to rx.js ([cf322130](https://github.com/angular/angular/commit/cf322130))
+* **change_detector:** ensure that locals are only used when implicit receiver ([d4925b61](https://github.com/angular/angular/commit/d4925b61), closes [#1542](https://github.com/angular/angular/issues/1542))
+* **compiler:**
+  * clone templates before compiling them ([9e8d31d5](https://github.com/angular/angular/commit/9e8d31d5), closes [#1058](https://github.com/angular/angular/issues/1058))
+  * changed the compiler to set up event listeners and host properties on host view  ([e3c11045](https://github.com/angular/angular/commit/e3c11045), closes [#1584](https://github.com/angular/angular/issues/1584))
+  * only sets viewDefinition absUrl if the view has either a template or templateUrl ([3d625463](https://github.com/angular/angular/commit/3d625463), closes [#1326](https://github.com/angular/angular/issues/1326), [#1327](https://github.com/angular/angular/issues/1327))
+* **decorators:**
+  * incorrect annotation to decorator adapter ([b0c735f7](https://github.com/angular/angular/commit/b0c735f7))
+  * fixed decorators ([49777648](https://github.com/angular/angular/commit/49777648))
+  * fixes decorator reflection. ([be7504d4](https://github.com/angular/angular/commit/be7504d4))
+  * updates missing benchmark and fixes typo. ([87dcd5eb](https://github.com/angular/angular/commit/87dcd5eb))
+* **decorators.es6:** export Directive decorator ([93c331d1](https://github.com/angular/angular/commit/93c331d1), closes [#1688](https://github.com/angular/angular/issues/1688))
+* **di:** improve error messages for invalid bindings ([ee1b574b](https://github.com/angular/angular/commit/ee1b574b), closes [#1515](https://github.com/angular/angular/issues/1515), [#1573](https://github.com/angular/angular/issues/1573))
+* **docs:** fix broken docs test after addition of .ts extension to dgeni regex. ([62bf777e](https://github.com/angular/angular/commit/62bf777e))
+* **exception_handler:** log errors via `console.error` ([ead21c91](https://github.com/angular/angular/commit/ead21c91))
+* **formatter:** point to the newest clang-format ([51c47792](https://github.com/angular/angular/commit/51c47792))
+* **router:**
+  * fix for leading slash in dart ([c9cec600](https://github.com/angular/angular/commit/c9cec600))
+  * navigate on popstate event ([2713b787](https://github.com/angular/angular/commit/2713b787))
+  * throw if config does not contain required fields ([259f872c](https://github.com/angular/angular/commit/259f872c))
+  * infer top-level routing from app component ([46ad3552](https://github.com/angular/angular/commit/46ad3552), closes [#1600](https://github.com/angular/angular/issues/1600))
+  * use lists for RouteConfig annotations ([4965226f](https://github.com/angular/angular/commit/4965226f))
+* **view:** changed view manager to hydrate change detector after creating directives ([c1579222](https://github.com/angular/angular/commit/c1579222))
+
+
+#### Features
+
+* **benchmark:** added an implementation of the tree benchmark in React ([e4342743](https://github.com/angular/angular/commit/e4342743))
+* **benchmarks:** Add basic dart transformer benchmarks. ([1864f60a](https://github.com/angular/angular/commit/1864f60a))
+* **decorators:**
+  * adds decorator versions of DI annotations. ([457c15cd](https://github.com/angular/angular/commit/457c15cd))
+  * adds support for parameter decorators. ([f863ea0d](https://github.com/angular/angular/commit/f863ea0d))
+  * adds decorators to be used by TS and Babel transpiled apps. ([fb67e373](https://github.com/angular/angular/commit/fb67e373))
+* **dom:** add location and history as DOM-like APIs. ([f356d033](https://github.com/angular/angular/commit/f356d033))
+* **material:** add prototype dialog component w/ demo. ([f88c4b77](https://github.com/angular/angular/commit/f88c4b77))
+* **router:**
+  * adds the router to the self-executing bundle. ([8e1d53b5](https://github.com/angular/angular/commit/8e1d53b5))
+  * export decorator version of RouteConfig ([75da6e4c](https://github.com/angular/angular/commit/75da6e4c))
+  * route redirects ([91533313](https://github.com/angular/angular/commit/91533313))
+  * sibling outlets ([9d5c33f9](https://github.com/angular/angular/commit/9d5c33f9))
+  * export routerInjectables ([ef7014fe](https://github.com/angular/angular/commit/ef7014fe))
+  * add location service ([ea546f50](https://github.com/angular/angular/commit/ea546f50))
+
+
+#### Breaking Changes
+
+* Previously, `Directive` was the abstract base class of several directives.
+Now, `Directive` is the former `Decorator`, and `Component` inherits from it.
+
+ ([f75a50c1](https://github.com/angular/angular/commit/f75a50c1))
+* A dynamic component is just a component that has no @View annotation…
+ ([8faf6364](https://github.com/angular/angular/commit/8faf6364))
+
+
 <a name="2.0.0-alpha.21"></a>
 # 2.0.0-alpha.21 (2015-04-27)
 
diff --git a/package.json b/package.json
index 90b5477e84..0919a041f0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "angular",
-  "version": "2.0.0-alpha.21",
+  "version": "2.0.0-alpha.22",
   "description": "Angular 2 - a web framework for modern web apps",
   "homepage": "https://github.com/angular/angular",
   "bugs": "https://github.com/angular/angular/issues",