diff --git a/public/docs/_examples/cb-component-communication/ts/app/app.component.html b/public/docs/_examples/cb-component-communication/ts/app/app.component.html
index 224f3b5b2b..0c71b7379f 100644
--- a/public/docs/_examples/cb-component-communication/ts/app/app.component.html
+++ b/public/docs/_examples/cb-component-communication/ts/app/app.component.html
@@ -1,10 +1,5 @@
 <h1 id="top">Component Communication Cookbook</h1>
 
-<div style="background: yellow; font-weight:bold; margin: 1em 0; padding: 1em">
-  Known problem with beta.11 prevents this sample from working properly.
-  We'll fix it for beta.12.
-</div>
-
 <a href="#parent-to-child">Pass data from parent to child with input binding ("Heros")</a><br/>
 <a href="#parent-to-child-setter">Intercept input property changes with a setter ("Master")</a><br/>
 <a href="#parent-to-child-on-changes">Intercept input property changes with <i>ngOnChanges</i> ("Source code version")</a><br/>
diff --git a/public/docs/_examples/homepage-hello-world/ts/index.1.html b/public/docs/_examples/homepage-hello-world/ts/index.1.html
index 3fe4e81573..b76916e721 100644
--- a/public/docs/_examples/homepage-hello-world/ts/index.1.html
+++ b/public/docs/_examples/homepage-hello-world/ts/index.1.html
@@ -14,9 +14,9 @@
 
     <script src="https://code.angularjs.org/tools/system.js"></script>
     <script src="https://code.angularjs.org/tools/typescript.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2-polyfills.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/Rx.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2.dev.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2-polyfills.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/Rx.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2.dev.js"></script>
 
     <!-- 2. Configure SystemJS -->
     <script>
diff --git a/public/docs/_examples/homepage-tabs/ts/index.1.html b/public/docs/_examples/homepage-tabs/ts/index.1.html
index 736be2f68b..a8d306a933 100644
--- a/public/docs/_examples/homepage-tabs/ts/index.1.html
+++ b/public/docs/_examples/homepage-tabs/ts/index.1.html
@@ -15,9 +15,9 @@
     
     <script src="https://code.angularjs.org/tools/system.js"></script>
     <script src="https://code.angularjs.org/tools/typescript.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2-polyfills.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/Rx.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2.dev.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2-polyfills.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/Rx.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2.dev.js"></script>
 
     <!-- 2. Configure SystemJS -->
     <script>
diff --git a/public/docs/_examples/homepage-todo/ts/index.1.html b/public/docs/_examples/homepage-todo/ts/index.1.html
index d37b060c38..96ac20053a 100644
--- a/public/docs/_examples/homepage-todo/ts/index.1.html
+++ b/public/docs/_examples/homepage-todo/ts/index.1.html
@@ -15,9 +15,9 @@
     
     <script src="https://code.angularjs.org/tools/system.js"></script>
     <script src="https://code.angularjs.org/tools/typescript.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2-polyfills.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/Rx.js"></script>
-    <script src="https://code.angularjs.org/2.0.0-beta.11/angular2.dev.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2-polyfills.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/Rx.js"></script>
+    <script src="https://code.angularjs.org/2.0.0-beta.12/angular2.dev.js"></script>
 
     <!-- 2. Configure SystemJS -->
     <script>
diff --git a/public/docs/_examples/package.json b/public/docs/_examples/package.json
index a7dd4ecae7..84eec0a3c6 100644
--- a/public/docs/_examples/package.json
+++ b/public/docs/_examples/package.json
@@ -19,15 +19,14 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "angular2": "2.0.0-beta.11",
+    "angular2": "2.0.0-beta.12",
     "systemjs": "0.19.24",
-    "es6-promise": "^3.0.2",
     "es6-shim": "^0.35.0",
     "reflect-metadata": "0.1.2",
     "rxjs": "5.0.0-beta.2",
-    "zone.js": "0.6.4",
+    "zone.js": "0.6.6",
     
-    "a2-in-memory-web-api": "^0.1.11",
+    "a2-in-memory-web-api": "^0.1.12",
     "bootstrap": "^3.3.6"
 
   },
@@ -40,7 +39,7 @@
     "http-server": "^0.9.0",
     "jasmine-core": "~2.4.1",
     "karma": "^0.13.22",
-    "karma-chrome-launcher": "^0.2.2",
+    "karma-chrome-launcher": "^0.2.3",
     "karma-cli": "^0.1.2",
     "karma-jasmine": "^0.3.8",
     "live-server": "^0.9.2",
diff --git a/public/docs/_examples/quickstart/js/package.1.json b/public/docs/_examples/quickstart/js/package.1.json
index 3153cc4e44..95d0f6ddba 100644
--- a/public/docs/_examples/quickstart/js/package.1.json
+++ b/public/docs/_examples/quickstart/js/package.1.json
@@ -7,12 +7,11 @@
   },
   "license": "ISC",
   "dependencies": {
-    "angular2": "2.0.0-beta.11",
-    "es6-promise": "^3.0.2",
+    "angular2": "2.0.0-beta.12",
     "es6-shim": "^0.35.0",
     "reflect-metadata": "0.1.2",
     "rxjs": "5.0.0-beta.2",
-    "zone.js": "0.6.4"
+    "zone.js": "0.6.6"
   },
   "devDependencies": {
     "concurrently": "^2.0.0",
diff --git a/public/docs/_examples/quickstart/ts/package.1.json b/public/docs/_examples/quickstart/ts/package.1.json
index f756ef62eb..a11d8ca25f 100644
--- a/public/docs/_examples/quickstart/ts/package.1.json
+++ b/public/docs/_examples/quickstart/ts/package.1.json
@@ -11,13 +11,12 @@
   },
   "license": "ISC",
   "dependencies": {
-    "angular2": "2.0.0-beta.11",
+    "angular2": "2.0.0-beta.12",
     "systemjs": "0.19.24",
-    "es6-promise": "^3.0.2",
     "es6-shim": "^0.35.0",
     "reflect-metadata": "0.1.2",
     "rxjs": "5.0.0-beta.2",
-    "zone.js": "0.6.4"
+    "zone.js": "0.6.6"
   },
   "devDependencies": {
     "concurrently": "^2.0.0",
diff --git a/public/docs/ts/latest/_data.json b/public/docs/ts/latest/_data.json
index 8c221c6385..ff6262b3b3 100644
--- a/public/docs/ts/latest/_data.json
+++ b/public/docs/ts/latest/_data.json
@@ -3,7 +3,7 @@
     "icon": "home",
     "title": "Angular Docs",
     "menuTitle": "Docs Home",
-    "banner": "Angular 2 is currently in Beta."
+    "banner": "The current Angular 2 release is beta.12. Please consult the <a href='https://github.com/angular/angular/blob/master/CHANGELOG.md' target='_blank'>  Change Log</a> about recent enhancements, fixes, and breaking changes."
   },
 
   "quickstart": {
diff --git a/public/docs/ts/latest/guide/lifecycle-hooks.jade b/public/docs/ts/latest/guide/lifecycle-hooks.jade
index 54a682da8d..df2bbab80e 100644
--- a/public/docs/ts/latest/guide/lifecycle-hooks.jade
+++ b/public/docs/ts/latest/guide/lifecycle-hooks.jade
@@ -434,14 +434,12 @@ figure.image-display
 .l-main-section
 :marked
   ## DoCheck
-  
   We can use the `DoCheck` hook to detect and act upon changes that Angular doesn't catch on its own.
 .l-sub-section
   :marked
     With this method we can detect a change that Angular overlooked. 
     What we do with that information to refresh the display is a separate matter.
 :marked
-  
   The *DoCheck* sample extends the *OnChanges* sample with this implementation of `DoCheck`:
 +makeExample('lifecycle-hooks/ts/app/do-check.component.ts', 'ng-do-check', 'DoCheckComponent (ngDoCheck)')(format=".")
 :marked
@@ -544,7 +542,7 @@ figure.image-display
   In this case, the projected content is the `<child-view>` from the parent.
 figure.image-display
   img(src='/resources/images/devguide/lifecycle-hooks/projected-child-view.png' width="230" alt="Projected Content")
-:marked  
+:marked
 .l-sub-section
   :marked
     The tell-tale signs of *content projection* are (a) HTML between component element tags
diff --git a/public/docs/ts/latest/index.jade b/public/docs/ts/latest/index.jade
index 5105fb21a8..ca01c00647 100644
--- a/public/docs/ts/latest/index.jade
+++ b/public/docs/ts/latest/index.jade
@@ -1,14 +1,3 @@
-.alert.is-critical
-  :marked
-    The current beta.11 release has known bugs relating to
-    significant changes to the  _zones_ subsystem.
-    All apps will report an error to the console:<br>
-    <span style="color:red; font-family:Lucida Console;">
-    Uncaught TypeError: Cannot read property 'zone' of undefined</span><br>
-    The app will run unimpeded but it is disconcerting.
-    We hope to have this and other bugs repaired by beta.12.
-    Thanks for your patience.
-    
 div.card-row(layout='row')
   div(flex)
     md-card.card
diff --git a/public/docs/ts/latest/tutorial/toh-pt4.jade b/public/docs/ts/latest/tutorial/toh-pt4.jade
index 68b93b2cc9..84620536fb 100644
--- a/public/docs/ts/latest/tutorial/toh-pt4.jade
+++ b/public/docs/ts/latest/tutorial/toh-pt4.jade
@@ -288,7 +288,7 @@ code-example(format="." language="html").
   It does that work (somewhere) and eventually it calls our function with the results of the work or an error.
 .l-sub-section
   :marked
-    We are simplifying. Learn about ES2015 Promises [here](http://www.datchley.name/es6-promises/) and elsewhere on the web.
+    We are simplifying. Learn about ES2015 Promises [here](http://www.2ality.com/2014/10/es6-promises-api.html) and elsewhere on the web.
 :marked
   Update the `HeroService` with this promise-returning `getHeroes` method:
 +makeExample('toh-4/ts/app/hero.service.ts', 'get-heroes', 'hero.service.ts (getHeroes)')(format=".")
diff --git a/tools/plunker-builder/indexHtmlTranslator.js b/tools/plunker-builder/indexHtmlTranslator.js
index 03a46e1e4e..65789c4ad4 100644
--- a/tools/plunker-builder/indexHtmlTranslator.js
+++ b/tools/plunker-builder/indexHtmlTranslator.js
@@ -40,47 +40,47 @@ var _rxData = [
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/angular2.dev.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/angular2.dev.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/angular2.dev.js'
   },
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/angular2-all.umd.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/angular2-all.umd.dev.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/angular2-all.umd.dev.js'
   },  
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/angular2-polyfills.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/angular2-polyfills.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/angular2-polyfills.js'
   },
   {
     pattern: 'script',
     from: 'node_modules/rxjs/bundles/Rx.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/Rx.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/Rx.js'
   },  
   {
     pattern: 'script',
     from: 'node_modules/rxjs/bundles/Rx.umd.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/Rx.umd.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/Rx.umd.js'
   },  
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/router.dev.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/router.dev.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/router.dev.js'
   },
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/http.dev.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/http.dev.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/http.dev.js'
   },
   {
     pattern: 'script',
     from: 'node_modules/angular2/bundles/testing.dev.js',
-    to: 'https://code.angularjs.org/2.0.0-beta.11/testing.dev.js'
+    to: 'https://code.angularjs.org/2.0.0-beta.12/testing.dev.js'
   },
   {
     pattern: 'script',
     from: 'node_modules/angular2/es6/dev/src/testing/shims_for_IE.js',
-    to: 'https://npmcdn.com/angular2@2.0.0-beta.11/es6/dev/src/testing/shims_for_IE.js'
+    to: 'https://npmcdn.com/angular2@2.0.0-beta.12/es6/dev/src/testing/shims_for_IE.js'
   },
   {
     pattern: 'script',