angular-cn/CHANGELOG.md

<a name"2.0.0-alpha.31"></a>
### 2.0.0-alpha.31 (2015-07-14)


#### Bug Fixes

* **build:**
  * remove the travis deploy step, which is broken. ([206c9bdd](https://github.com/angular/angular/commit/206c9bdd))
  * reduce the deploy upload. ([4264bd3b](https://github.com/angular/angular/commit/4264bd3b))
  * clang-format ([df877a7d](https://github.com/angular/angular/commit/df877a7d))
* **compiler:** keep `DOM.hasProperty` in sync between browser and transformer. ([b3a763a7](https://github.com/angular/angular/commit/b3a763a7), closes [#2984](https://github.com/angular/angular/issues/2984), [#2981](https://github.com/angular/angular/issues/2981))
* **css_shim:** fixes multiple uses of polyfill-unscoped-rule. ([749d0432](https://github.com/angular/angular/commit/749d0432))
* **di:**
  * removed default visibility ([04baa46e](https://github.com/angular/angular/commit/04baa46e))
  * do not use exceptions to detect if reflection is enabled ([a6210466](https://github.com/angular/angular/commit/a6210466))
  * hostInjector and viewInjector support nested arrays ([0ed5dd0d](https://github.com/angular/angular/commit/0ed5dd0d))
* **example:** add missing todo ([1427d73b](https://github.com/angular/angular/commit/1427d73b))
* **package.json:** move some deps into dev deps. ([546a8f92](https://github.com/angular/angular/commit/546a8f92), closes [#2448](https://github.com/angular/angular/issues/2448))
* **router:**
  * export lifecycle hooks in bundle ([97ef1c27](https://github.com/angular/angular/commit/97ef1c27))
  * fix broken `HashLocationStrategy` string issue for dart ([d6dadc6e](https://github.com/angular/angular/commit/d6dadc6e))
  * ensure that page refresh with hash URLs works ([c177d889](https://github.com/angular/angular/commit/c177d889), closes [#2920](https://github.com/angular/angular/issues/2920))
* **transform:** handle multiple interfaces in directive processor ([ac50ffca](https://github.com/angular/angular/commit/ac50ffca), closes [#2941](https://github.com/angular/angular/issues/2941))
* **transformer:**
  * Event getters now use property name not event name ([cf103de4](https://github.com/angular/angular/commit/cf103de4))
  * fix 'pub build' in examples ([62589293](https://github.com/angular/angular/commit/62589293))
* **tsconfig:** target should be lower case ([0792f1a7](https://github.com/angular/angular/commit/0792f1a7), closes [#2938](https://github.com/angular/angular/issues/2938))


#### Features

* upgrade clang-format to v1.0.28. ([45994a53](https://github.com/angular/angular/commit/45994a53))
* **build:** Allow building in windows without admin priviledges ([f1f57843](https://github.com/angular/angular/commit/f1f57843), closes [#2873](https://github.com/angular/angular/issues/2873))
* **forms:** changed all form directives to have basic control attributes ([3f7ebde0](https://github.com/angular/angular/commit/3f7ebde0))
* **license:** include license files in dev and dev.sfx bundles ([1eab4f5f](https://github.com/angular/angular/commit/1eab4f5f))
* **pipes:**
  * add static append method to Pipes ([1eebceab](https://github.com/angular/angular/commit/1eebceab), closes [#2901](https://github.com/angular/angular/issues/2901))
  * add date pipe ([b716046b](https://github.com/angular/angular/commit/b716046b), closes [#2877](https://github.com/angular/angular/issues/2877))
  * add number (decimal, percent, currency) pipes ([3143d188](https://github.com/angular/angular/commit/3143d188))
* **query:** initial implementation of view query. ([7ee6963f](https://github.com/angular/angular/commit/7ee6963f), closes [#1935](https://github.com/angular/angular/issues/1935))
* **router:**
  * introduce matrix params ([5677bf73](https://github.com/angular/angular/commit/5677bf73), closes [#2774](https://github.com/angular/angular/issues/2774), [#2989](https://github.com/angular/angular/issues/2989))
  * lifecycle hooks ([a9a552c1](https://github.com/angular/angular/commit/a9a552c1), closes [#2640](https://github.com/angular/angular/issues/2640))
* **test:** add test bundle ([71c65b47](https://github.com/angular/angular/commit/71c65b47))
* **zone:** add "on event done" zone hook ([0e28297e](https://github.com/angular/angular/commit/0e28297e))


#### Breaking Changes

*     Directives will use the Unbounded visibility by default, whereas before the change they used Self

 ([04baa46e](https://github.com/angular/angular/commit/04baa46e))
*     This change renames all instances of PipeRegistry to Pipes.
    As part of this change, the former "defaultPipes" export is
    now a Pipes instance, instead of a map. The map that was previously
    called "defaultPipes" no longer exists, but may be accessed via
    defaultPipes.config.

 ([9a70f84e](https://github.com/angular/angular/commit/9a70f84e))

* We export InjectMetadata instead of InjectAnnotation

  ([b54e7214](https://github.com/angular/angular/commit/b54e7214)) 

<a name"2.0.0-alpha.30"></a>
### 2.0.0-alpha.30 (2015-07-07)


#### Bug Fixes

* handle errors w/o file information. ([e69af1a3](https://github.com/angular/angular/commit/e69af1a3))
* **.d.ts:** correct ComponentAnnotation inheritance ([12a427e1](https://github.com/angular/angular/commit/12a427e1), closes [#2356](https://github.com/angular/angular/issues/2356))
* **Http:** add support for headers ([883b5064](https://github.com/angular/angular/commit/883b5064))
* **angular2.d.ts:** show typing for Component, etc ([b10d7a2e](https://github.com/angular/angular/commit/b10d7a2e))
* **change_detection:**
  * throw ChangeDetectionError in JIT mode ([c2efa23e](https://github.com/angular/angular/commit/c2efa23e))
  * do not coalesce records with different directive indices ([d2774421](https://github.com/angular/angular/commit/d2774421))
* **compiler:** detect and strip data- prefix from bindings ([cd65fc2a](https://github.com/angular/angular/commit/cd65fc2a), closes [#2687](https://github.com/angular/angular/issues/2687), [#2719](https://github.com/angular/angular/issues/2719))
* **di:** injecting null causes a cyclic dependency ([d1393b05](https://github.com/angular/angular/commit/d1393b05))
* **forms:** Remove cyclic dependency ([e5405e4b](https://github.com/angular/angular/commit/e5405e4b), closes [#2856](https://github.com/angular/angular/issues/2856))
* **router:**
  * allow generating links with numeric params ([d828664d](https://github.com/angular/angular/commit/d828664d))
  * child routers should delegate navigation to the root router ([1c94c32f](https://github.com/angular/angular/commit/1c94c32f))
* **transformer:**
  * Support prefixed annotations in the transformer. ([9e1158de](https://github.com/angular/angular/commit/9e1158de))
  * Put paramater data in the same order as the reflected version. ([2b45bd2a](https://github.com/angular/angular/commit/2b45bd2a))
  * Fix string interpolation for bindings. ([311b4772](https://github.com/angular/angular/commit/311b4772))


#### Features

* upgrade t2dart to 0.6.8. ([d381c5fc](https://github.com/angular/angular/commit/d381c5fc))
* **NgStyle:** Export NgStyle in angular2/directives ([edf5053b](https://github.com/angular/angular/commit/edf5053b), closes [#2878](https://github.com/angular/angular/issues/2878))
* **router:** support deep-linking to siblings ([286a249a](https://github.com/angular/angular/commit/286a249a), closes [#2807](https://github.com/angular/angular/issues/2807))
* **transformer:** Support @Injectable() on static functions ([7986e7ce](https://github.com/angular/angular/commit/7986e7ce))
* **typings:** mark void methods in angular2.d.ts ([a56d33d7](https://github.com/angular/angular/commit/a56d33d7))


<a name"2.0.0-alpha.29"></a>
### 2.0.0-alpha.29 (2015-07-01)


#### Bug Fixes

* export top-level pipe factories as const ([393f703a](https://github.com/angular/angular/commit/393f703a))
* **Router:** mark Pipeline and RouteRegistry as Injectable ([eea989be](https://github.com/angular/angular/commit/eea989be))
* **build:**
  * Reduce rx typings to what we actually require. ([8bab6dd2](https://github.com/angular/angular/commit/8bab6dd2))
  * add missing return types now enforced by linter ([44891996](https://github.com/angular/angular/commit/44891996))
  * fix paths in `test.typings` task ([1c8a5896](https://github.com/angular/angular/commit/1c8a5896))
* **bundle:**
  * don’t bundle traceur/reflect into benchpress - amended change ([d629ed7d](https://github.com/angular/angular/commit/d629ed7d))
  * don’t bundle traceur/reflect into benchpress ([da4de21f](https://github.com/angular/angular/commit/da4de21f))
* **change detectors:** Fix deduping of protos in transformed dart mode. ([73a939e7](https://github.com/angular/angular/commit/73a939e7))
* **compiler:** don't trigger duplicated directives ([0598226e](https://github.com/angular/angular/commit/0598226e), closes [#2756](https://github.com/angular/angular/issues/2756), [#2568](https://github.com/angular/angular/issues/2568))
* **docs:**
  * to run js test 'gulp docs' is needed ([3e650378](https://github.com/angular/angular/commit/3e650378), closes [#2762](https://github.com/angular/angular/issues/2762))
  * link to clang-format ([f1cf5298](https://github.com/angular/angular/commit/f1cf5298))
* **dynamic_component_loader:** check whether the dynamically loaded component has already been destroyed ([d6cef88d](https://github.com/angular/angular/commit/d6cef88d), closes [#2748](https://github.com/angular/angular/issues/2748), [#2767](https://github.com/angular/angular/issues/2767))
* **transformer:**
  * Add getters for `events`. ([5a21dc53](https://github.com/angular/angular/commit/5a21dc53))
  * Don't hang on bad urls and log better errors ([d037c082](https://github.com/angular/angular/commit/d037c082))
  * Fix annotation_matcher for NgForm directive. ([9c768501](https://github.com/angular/angular/commit/9c768501))
* **typings:** Minor issues preventing angular2.d.ts from working in TS 1.4. ([7a4a3c85](https://github.com/angular/angular/commit/7a4a3c85))


#### Features

* upgrade clang-format and gulp-clang-format. ([1f7296c0](https://github.com/angular/angular/commit/1f7296c0))
* **NgStyle:** add new NgStyle directive ([b50edfd1](https://github.com/angular/angular/commit/b50edfd1), closes [#2665](https://github.com/angular/angular/issues/2665))
* **async:** added PromiseWrapper.wrap ([b688dee4](https://github.com/angular/angular/commit/b688dee4))
* **benchpress:** initial support for firefox ([0949a4b0](https://github.com/angular/angular/commit/0949a4b0), closes [#2419](https://github.com/angular/angular/issues/2419))
* **build:** add tslint to the build. ([bc585f27](https://github.com/angular/angular/commit/bc585f27))
* **di:**
  * removed app injector ([f0e962c5](https://github.com/angular/angular/commit/f0e962c5))
  * changed InstantiationError to print the original stack ([eb0fd796](https://github.com/angular/angular/commit/eb0fd796))
* **facade:** add ListWrapper.toJSON method ([23350755](https://github.com/angular/angular/commit/23350755))
* **http:** refactor library to work in dart ([55bf0e55](https://github.com/angular/angular/commit/55bf0e55), closes [#2415](https://github.com/angular/angular/issues/2415))
* **lang:** added originalException and originalStack to BaseException ([56245c6a](https://github.com/angular/angular/commit/56245c6a))
* **pipes:**
  * add limitTo pipe ([0b502588](https://github.com/angular/angular/commit/0b502588))
  * support arguments in transform function ([600d53c6](https://github.com/angular/angular/commit/600d53c6))
* **router:** support deep-linking to anywhere in the app ([f66ce096](https://github.com/angular/angular/commit/f66ce096), closes [#2642](https://github.com/angular/angular/issues/2642))
* **transformers:** provide a flag to disable inlining views ([dcdd7306](https://github.com/angular/angular/commit/dcdd7306), closes [#2658](https://github.com/angular/angular/issues/2658))


#### Breaking Changes

* 
THe appInjector property has been removed. Instead use viewInjector or hostInjector.

 ([f0e962c5](https://github.com/angular/angular/commit/f0e962c5))
*     The Http module previously would return RxJS Observables from method calls
    of the Http class. In order to support Dart, the module was refactored to
    return the EventEmitter abstraction instead, which does not contain the same
    combinators or subscription semantics as an RxJS Observable. However, the
    EventEmitter provides a toRx() method which will return an RxJS Subject,
    providing the same subscription and combinator conveniences as were
    available prior to this refactor.

    This is temporary, until issue #2794 is resolved, when Observables will
    again be returned directly from Http class methods.

 ([34eaf65a](https://github.com/angular/angular/commit/34eaf65a))
* HttpFactory is no longer available. 
    This factory provided a function alternative to the `request` method of the
    Http class, but added no real value. The additional factory required an
    additional IHttp interface, an odd way to inject while preserving type information
    (`@Inject(HttpFactory) http:IHttp`), and required additional documentation in the
    http module.

Closes #2564

 ([146dbf12](https://github.com/angular/angular/commit/146dbf12))


<a name"2.0.0-alpha.28"></a>
### 2.0.0-alpha.28 (2015-06-24)


#### Bug Fixes

* **ShadowDomStrategy:** always inline import rules ([1c4d233f](https://github.com/angular/angular/commit/1c4d233f), closes [#1694](https://github.com/angular/angular/issues/1694))
* **XHRImpl:** file:/// and IE9 bugs ([cd735c48](https://github.com/angular/angular/commit/cd735c48))
* **annotations:** swap DirectiveArgs & ComponentArgs ([dcc4bc27](https://github.com/angular/angular/commit/dcc4bc27))
* **benchmarks:** add waits for naive scrolling benchmark to ensure loading ([d8929c1d](https://github.com/angular/angular/commit/d8929c1d), closes [#1706](https://github.com/angular/angular/issues/1706))
* **benchpress:** do not throw on unkown frame timestamp event ([ed3af5f7](https://github.com/angular/angular/commit/ed3af5f7), closes [#2622](https://github.com/angular/angular/issues/2622))
* **change detection:** preserve memoized results from pure functions ([5beaf6d7](https://github.com/angular/angular/commit/5beaf6d7))
* **compiler:** make text interpolation more robust ([9d4111d6](https://github.com/angular/angular/commit/9d4111d6), closes [#2591](https://github.com/angular/angular/issues/2591))
* **docs:** Fix docs for Directive.compileChildren ([9700e806](https://github.com/angular/angular/commit/9700e806))
* **injectors:** sync injector tree with dom element tree. ([d800d2f5](https://github.com/angular/angular/commit/d800d2f5))
* **parse5:** do not try to insert empty text node ([0a2f6ddc](https://github.com/angular/angular/commit/0a2f6ddc))
* **render:** fix failing tests in dynamic_component_loader.ts ([6149ce28](https://github.com/angular/angular/commit/6149ce28))
* **router:** return promise with error handler ([bc798b18](https://github.com/angular/angular/commit/bc798b18))
* **transformer:** Throw unimplemented errors in HtmlAdapter. ([f9d72bd8](https://github.com/angular/angular/commit/f9d72bd8), closes [#2624](https://github.com/angular/angular/issues/2624), [#2627](https://github.com/angular/angular/issues/2627))
* **views:** remove dynamic component views, free host views, free embedded views ([5dee8e26](https://github.com/angular/angular/commit/5dee8e26), closes [#2472](https://github.com/angular/angular/issues/2472), [#2339](https://github.com/angular/angular/issues/2339))


#### Features

* update clang-format to 1.0.21. ([254e58c2](https://github.com/angular/angular/commit/254e58c2))
* remove MapWrapper.clear(). ([94136201](https://github.com/angular/angular/commit/94136201))
* remove MapWrapper.contains(). ([dfd30910](https://github.com/angular/angular/commit/dfd30910))
* remove MapWrapper.create()/get()/set(). ([be7ac9fd](https://github.com/angular/angular/commit/be7ac9fd))
* add constructors without type arguments. ([35e882e7](https://github.com/angular/angular/commit/35e882e7))
* upgrade ts2dart to 0.6.4. ([58b38c92](https://github.com/angular/angular/commit/58b38c92))
* **CSSClass:** add support for string and array expresions ([8c993dca](https://github.com/angular/angular/commit/8c993dca), closes [#2025](https://github.com/angular/angular/issues/2025))
* **compiler:** detect dangling property bindings ([d7b9345b](https://github.com/angular/angular/commit/d7b9345b), closes [#2598](https://github.com/angular/angular/issues/2598))
* **element_injector:** support multiple injectables with the same token ([c899b0a7](https://github.com/angular/angular/commit/c899b0a7))
* **host:** limits host properties to renames ([92ffc465](https://github.com/angular/angular/commit/92ffc465))
* **mock:** add mock module and bundle ([29323777](https://github.com/angular/angular/commit/29323777), closes [#2325](https://github.com/angular/angular/issues/2325))
* **query:** added support for querying by var bindings ([b0e2ebda](https://github.com/angular/angular/commit/b0e2ebda))
* **render:** don’t use the reflector for setting properties ([0a51ccbd](https://github.com/angular/angular/commit/0a51ccbd), closes [#2637](https://github.com/angular/angular/issues/2637))
* **router:**
  * add support for hash-based location ([a67f2314](https://github.com/angular/angular/commit/a67f2314), closes [#2555](https://github.com/angular/angular/issues/2555))
  * enforce usage of ... syntax for parent to child component routes ([2d2ae9b8](https://github.com/angular/angular/commit/2d2ae9b8))
* **transformers:** inline styleUrls to view directive ([f2ef90b2](https://github.com/angular/angular/commit/f2ef90b2), closes [#2566](https://github.com/angular/angular/issues/2566))
* **typings:** add typing specs ([24646e7e](https://github.com/angular/angular/commit/24646e7e))


#### Breaking Changes

* compiler will throw on binding to non-existing properties.

Till now it was possible to have a binding to a non-existing property,
ex.: `<div [foo]="exp">`. From now on this is compilation error - any
property binding needs to have at least one associated property:
eaither on an HTML element or on any directive associated with a
given element (directives' properites need to be declared using the
`properties` field in the `@Directive` / `@Component` annotation).

Closes #2598

 ([d7b9345b](https://github.com/angular/angular/commit/d7b9345b))
* 
This PR remove an ability to use pipes in the properties config. Instead, inject the pipe registry.

 ([20a8f0db](https://github.com/angular/angular/commit/20a8f0db))


<a name"2.0.0-alpha.27"></a>
### 2.0.0-alpha.27 (2015-06-16)


#### Bug Fixes

* makes NgModel work in strict mode ([eb3586d7](https://github.com/angular/angular/commit/eb3586d7))
* Class factory now adds annotations ([bc9e482b](https://github.com/angular/angular/commit/bc9e482b))
* improve type safety by typing `refs`. ([4ae7df27](https://github.com/angular/angular/commit/4ae7df27))
* improve type of TreeNode.children. ([c3c2ad14](https://github.com/angular/angular/commit/c3c2ad14))
* add types for ts2dart's façade handling. ([f3d74185](https://github.com/angular/angular/commit/f3d74185))
* rename FORWARD_REF to forwardRef in the Angular code base. ([c4ecbf0a](https://github.com/angular/angular/commit/c4ecbf0a))
* declare var global. ([13466604](https://github.com/angular/angular/commit/13466604))
* Improve error message on missing dependency ([2ccc65d7](https://github.com/angular/angular/commit/2ccc65d7))
* compare strings with StringWrapper.equals ([633cf636](https://github.com/angular/angular/commit/633cf636))
* corrected var/# parsing in template ([a4183971](https://github.com/angular/angular/commit/a4183971), closes [#2084](https://github.com/angular/angular/issues/2084))
* increase the stack frame size for tests ([ab8eb4f6](https://github.com/angular/angular/commit/ab8eb4f6))
* include error message in the stack trace ([8d081ea7](https://github.com/angular/angular/commit/8d081ea7))
* **Compiler:** fix text nodes after content tags ([d599fd34](https://github.com/angular/angular/commit/d599fd34), closes [#2095](https://github.com/angular/angular/issues/2095))
* **DirectiveMetadata:** add support for events, changeDetection ([b4e82b8b](https://github.com/angular/angular/commit/b4e82b8b))
* **JsonPipe:** always transform to json ([e77710a3](https://github.com/angular/angular/commit/e77710a3))
* **Parser:** Parse pipes in arguments ([f9745327](https://github.com/angular/angular/commit/f9745327), closes [#1680](https://github.com/angular/angular/issues/1680))
* **ShadowDom:** fix emulation integration spec to test all 3 strategies ([6e385154](https://github.com/angular/angular/commit/6e385154), closes [#2546](https://github.com/angular/angular/issues/2546))
* **analzyer:** removed unused imports ([902759e1](https://github.com/angular/angular/commit/902759e1))
* **benchmarks:** Do not apply the angular transformer to e2e tests ([cee26826](https://github.com/angular/angular/commit/cee26826))
* **bootstrap:** temporary disable jit change detection because of a bug in handling pure functio ([9908def8](https://github.com/angular/angular/commit/9908def8))
* **broccoli:** ensure that inputTrees are stable ([928ec1c5](https://github.com/angular/angular/commit/928ec1c5))
* **build:**
  * ensure that asset files are copied over to example directories ([60b97b27](https://github.com/angular/angular/commit/60b97b27))
  * Minify files for angular2.min.js bundle ([76797dfb](https://github.com/angular/angular/commit/76797dfb))
  * only pass ts files to ts2dart transpilation. ([b5431e4c](https://github.com/angular/angular/commit/b5431e4c))
* **bundle:** makes interfaces.ts non-empty when transpiled. ([83e99fc7](https://github.com/angular/angular/commit/83e99fc7))
* **change detect:** Fix bug in JIT change detectors ([e0fbd4b6](https://github.com/angular/angular/commit/e0fbd4b6))
* **ci:** remove non-existent gulp task from test_e2e_dart ([1cf807c3](https://github.com/angular/angular/commit/1cf807c3), closes [#2509](https://github.com/angular/angular/issues/2509))
* **dartfmt:** don't break win32 command line limit ([617d6931](https://github.com/angular/angular/commit/617d6931), closes [#2420](https://github.com/angular/angular/issues/2420), [#1875](https://github.com/angular/angular/issues/1875))
* **diffing-broccoli-plugin:** wrapped trees are always stable ([7611f92f](https://github.com/angular/angular/commit/7611f92f))
* **docs:**
  * order class members in order of declaration ([ea27704e](https://github.com/angular/angular/commit/ea27704e), closes [#2569](https://github.com/angular/angular/issues/2569))
  * update link paths in annotations ([dd23bab3](https://github.com/angular/angular/commit/dd23bab3), closes [#2475](https://github.com/angular/angular/issues/2475))
  * ensure no duplicates in alias names of docs ([05d02fa9](https://github.com/angular/angular/commit/05d02fa9))
  * Working generated angular2.d.ts ([7141c15e](https://github.com/angular/angular/commit/7141c15e))
* **dynamic_component_loader:**
  * Fix for ts2dart issue ([bbfb4e1d](https://github.com/angular/angular/commit/bbfb4e1d))
  * implemented dispose for dynamically-loaded components ([21dcfc89](https://github.com/angular/angular/commit/21dcfc89))
* **element_injector:** changed visibility rules to expose hostInjector of the component to its shadow d ([c51aef9f](https://github.com/angular/angular/commit/c51aef9f))
* **forms:**
  * updated form examples to contain select elements ([c34cb014](https://github.com/angular/angular/commit/c34cb014))
  * fixed the handling of the select element ([f1541e65](https://github.com/angular/angular/commit/f1541e65))
  * fixed the selector of NgRequiredValidator ([35197acc](https://github.com/angular/angular/commit/35197acc))
  * getError does not work without path ([a858f6ac](https://github.com/angular/angular/commit/a858f6ac))
* **life_cycle:** throw when recursively reentering LifeCycle.tick ([af35ab56](https://github.com/angular/angular/commit/af35ab56))
* **locals:** improved an error message ([4eb8c9b2](https://github.com/angular/angular/commit/4eb8c9b2))
* **ng_zone:** updated zone not to run onTurnDown when invoking run synchronously from onTurnDo ([15dab7c5](https://github.com/angular/angular/commit/15dab7c5))
* **npm:** update scripts and readme for npm packages. ([8923103c](https://github.com/angular/angular/commit/8923103c), closes [#2377](https://github.com/angular/angular/issues/2377))
* **router:**
  * ensure that root URL redirect doesn't redirect non-root URLs ([73d15250](https://github.com/angular/angular/commit/73d15250), closes [#2221](https://github.com/angular/angular/issues/2221))
  * rethrow exceptions ([5782f063](https://github.com/angular/angular/commit/5782f063), closes [#2391](https://github.com/angular/angular/issues/2391))
  * avoid two slash values between the baseHref and the path ([cdc7b03e](https://github.com/angular/angular/commit/cdc7b03e))
  * do not prepend the root URL with a starting slash ([e372cc77](https://github.com/angular/angular/commit/e372cc77))
* **selector:** select by attribute independent of value and order ([9bad70be](https://github.com/angular/angular/commit/9bad70be), closes [#2513](https://github.com/angular/angular/issues/2513))
* **shadow_dom:** moves the imported nodes into the correct location. ([92d56584](https://github.com/angular/angular/commit/92d56584))
* **shrinkwrap:** restore fsevents dependency ([833048f3](https://github.com/angular/angular/commit/833048f3), closes [#2511](https://github.com/angular/angular/issues/2511))
* **view:** local variables override local variables set by ng-for ([d8e27953](https://github.com/angular/angular/commit/d8e27953))


#### Features

* allow Type.annotations = Component(...).View(...) ([b2c66949](https://github.com/angular/angular/commit/b2c66949), closes [#2577](https://github.com/angular/angular/issues/2577))
* support decorator chaining and class creation in ES5 ([c3ae34f0](https://github.com/angular/angular/commit/c3ae34f0), closes [#2534](https://github.com/angular/angular/issues/2534))
* update ts2dart to 0.6.1. ([96137724](https://github.com/angular/angular/commit/96137724))
* adjust formatting for clang-format v1.0.19. ([a6e71239](https://github.com/angular/angular/commit/a6e71239))
* upgrade to clang-format v1.0.19. ([1c2abbc6](https://github.com/angular/angular/commit/1c2abbc6))
* **AstTranformer:** add support for missing nodes ([da60381c](https://github.com/angular/angular/commit/da60381c))
* **BaseRequestOptions:** add merge method to make copies of options ([93596dff](https://github.com/angular/angular/commit/93596dff))
* **Directive:** Have a single Directive.host which mimics HTML ([f3b49378](https://github.com/angular/angular/commit/f3b49378), closes [#2268](https://github.com/angular/angular/issues/2268))
* **ElementInjector:** throw if multiple directives define the same host injectable ([6a6b43de](https://github.com/angular/angular/commit/6a6b43de))
* **Events:** allow a different event vs field name ([29c72abc](https://github.com/angular/angular/commit/29c72abc), closes [#2272](https://github.com/angular/angular/issues/2272), [#2344](https://github.com/angular/angular/issues/2344))
* **FakeAsync:** check pending timers at the end of fakeAsync in Dart ([53694eb6](https://github.com/angular/angular/commit/53694eb6))
* **Http:** add Http class ([b68e561c](https://github.com/angular/angular/commit/b68e561c), closes [#2530](https://github.com/angular/angular/issues/2530))
* **Parser:**
  * support if statements in actions ([7d328799](https://github.com/angular/angular/commit/7d328799), closes [#2022](https://github.com/angular/angular/issues/2022))
  * implement Unparser ([331a051e](https://github.com/angular/angular/commit/331a051e), closes [#1949](https://github.com/angular/angular/issues/1949), [#2395](https://github.com/angular/angular/issues/2395))
* **View:** add support for styleUrls and styles ([ac3e624d](https://github.com/angular/angular/commit/ac3e624d), closes [#2382](https://github.com/angular/angular/issues/2382))
* **benchpress:**
  * more smoothness metrics ([35589a6b](https://github.com/angular/angular/commit/35589a6b))
  * add mean frame time metric ([6834c499](https://github.com/angular/angular/commit/6834c499), closes [#2474](https://github.com/angular/angular/issues/2474))
* **broccoli:**
  * improve merge-trees plugin and add "overwrite" option ([dc8dac7c](https://github.com/angular/angular/commit/dc8dac7c))
  * add diffing MergeTrees plugin ([4ee3fdaf](https://github.com/angular/angular/commit/4ee3fdaf), closes [#1815](https://github.com/angular/angular/issues/1815), [#2064](https://github.com/angular/angular/issues/2064))
* **build:** add `test.unit.dartvm` for a faster roundtrip of dartvm tests ([46eeee6b](https://github.com/angular/angular/commit/46eeee6b))
* **change detect:** Throw on attempts to use dehydrated detector ([b6e95bb9](https://github.com/angular/angular/commit/b6e95bb9))
* **diffing-broccoli-plugin:** support multiple inputTrees ([41ae8e76](https://github.com/angular/angular/commit/41ae8e76), closes [#1815](https://github.com/angular/angular/issues/1815), [#2064](https://github.com/angular/angular/issues/2064))
* **e2e:** added e2e tests for forms ([552d1ed6](https://github.com/angular/angular/commit/552d1ed6))
* **facade:** add isMap method ([548f3dd5](https://github.com/angular/angular/commit/548f3dd5))
* **forms:**
  * set exportAs to form for all form related directives ([e7e82cbe](https://github.com/angular/angular/commit/e7e82cbe))
  * export validator directives as part of formDirectives ([73bce402](https://github.com/angular/angular/commit/73bce402))
  * changed forms to capture submit events and fires synthetic ng-submit events ([5fc23cae](https://github.com/angular/angular/commit/5fc23cae))
  * added hasError and getError methods to all controls ([1a4d2374](https://github.com/angular/angular/commit/1a4d2374))
* **forms.ts:** formInjectables with FormBuilder ([a6cb86ba](https://github.com/angular/angular/commit/a6cb86ba), closes [#2367](https://github.com/angular/angular/issues/2367))
* **http:** add basic http service ([21568106](https://github.com/angular/angular/commit/21568106), closes [#2028](https://github.com/angular/angular/issues/2028))
* **query:**
  * notify on changes ([5bfcca2d](https://github.com/angular/angular/commit/5bfcca2d))
  * adds support for descendants and more list apis. ([355ab5b3](https://github.com/angular/angular/commit/355ab5b3))
* **router:**
  * allow configuring app base href via token ([cab1d0ef](https://github.com/angular/angular/commit/cab1d0ef))
  * add routing to async components ([cd95e078](https://github.com/angular/angular/commit/cd95e078))
* **transform:** update for Directive.host ([591f742d](https://github.com/angular/angular/commit/591f742d))
* **transformers:** updated transformers ([e5419feb](https://github.com/angular/angular/commit/e5419feb))
* **view:** added support for exportAs, so any directive can be assigned to a variable ([69b75b7f](https://github.com/angular/angular/commit/69b75b7f))


#### Breaking Changes

* By default Query only queries direct children.

 ([355ab5b3](https://github.com/angular/angular/commit/355ab5b3))
* 
Before

    @Directive({
      hostListeners: {'event': 'statement'},
      hostProperties: {'expression': 'hostProp'},
      hostAttributes: {'attr': 'value'},
      hostActions: {'action': 'statement'}
    })

After

    @Directive({
      host: {
        '(event)': 'statement',
        '[hostProp]': 'expression'  // k & v swapped
        'attr': 'value',
        '@action': 'statement'
      }
    })

 ([f3b49378](https://github.com/angular/angular/commit/f3b49378))
* 
no longer cache ref

 ([e77710a3](https://github.com/angular/angular/commit/e77710a3))


<a name"2.0.0-alpha.26"></a>
### 2.0.0-alpha.26 (2015-06-03)


#### Bug Fixes

* format a file that slipped in. ([471a1b6d](https://github.com/angular/angular/commit/471a1b6d))
* fix clang errors ([01fb8e66](https://github.com/angular/angular/commit/01fb8e66))
* **ShadowCss:** keyframes tests failing in Safari ([4c8e11a5](https://github.com/angular/angular/commit/4c8e11a5), closes [#2283](https://github.com/angular/angular/issues/2283))
* **Tools:** Moves files out of dart2js/**/web. ([40150379](https://github.com/angular/angular/commit/40150379))
* **ast:** fix the size of a list in _evalListCache ([0387221d](https://github.com/angular/angular/commit/0387221d))
* **benchpress:**
  * support nested intervals ([c280fe81](https://github.com/angular/angular/commit/c280fe81))
  * add index to root of module ([383f0a1f](https://github.com/angular/angular/commit/383f0a1f))
* **binding:** unbalanced curly brackets in documentation ([a80921b4](https://github.com/angular/angular/commit/a80921b4))
* **browser_adapter:**
  * HTMLStyleElement.innerText does not trigger creation of CSS rules (Firefox) ([b2a24e02](https://github.com/angular/angular/commit/b2a24e02))
  * event creation fails (IE11, Firefox) ([665ccafd](https://github.com/angular/angular/commit/665ccafd))
  * element.getBoundingClientRect fails when element not in DOM (IE11) ([f35dbb99](https://github.com/angular/angular/commit/f35dbb99))
  * element.matches only available with prefix (IE11) ([a393f84f](https://github.com/angular/angular/commit/a393f84f))
  * assigning null to document.title sets the title to "null" (IE11, Firefox) ([92c2c33a](https://github.com/angular/angular/commit/92c2c33a))
* **build:**
  * remove nonexistant dart format task from gulpfile ([f74d7727](https://github.com/angular/angular/commit/f74d7727))
  * make dart formatter errors more readable ([31b66878](https://github.com/angular/angular/commit/31b66878))
  * also run ts tests in node. ([05774f6c](https://github.com/angular/angular/commit/05774f6c))
* **collection:**
  * iterator on Map keys is not supported (Safari) ([4b98ed11](https://github.com/angular/angular/commit/4b98ed11), closes [#2096](https://github.com/angular/angular/issues/2096))
  * new Map(iterable) is not supported (Safari) ([d308e55e](https://github.com/angular/angular/commit/d308e55e))
  * new Set(iterable) is not supported (IE11, Safari) ([57b88ec2](https://github.com/angular/angular/commit/57b88ec2), closes [#2063](https://github.com/angular/angular/issues/2063))
* **core:** resurrect OnChange interface ([d48fae35](https://github.com/angular/angular/commit/d48fae35))
* **dartdocs:** Hide duplicate exports from guinness. ([17e1d7f1](https://github.com/angular/angular/commit/17e1d7f1))
* **deps:** Update clang-format to 1.0.14. ([15f1eb28](https://github.com/angular/angular/commit/15f1eb28))
* **di:** allow `@Inject(…)` to work in dart2js and dynamic reflection ([4a3fd5e8](https://github.com/angular/angular/commit/4a3fd5e8), closes [#2185](https://github.com/angular/angular/issues/2185))
* **docs:** generate d.ts file only for angular2/angular2. ([0a0b84a0](https://github.com/angular/angular/commit/0a0b84a0))
* **dom:**
  * allow to correctly clone document fragments ([2351896c](https://github.com/angular/angular/commit/2351896c))
  * `querySelectorAll` should only query child nodes ([307011a9](https://github.com/angular/angular/commit/307011a9))
* **example:** unused event ([f83f1ee0](https://github.com/angular/angular/commit/f83f1ee0))
* **examples:** update form example to use NgIf ([1ad65582](https://github.com/angular/angular/commit/1ad65582))
* **facade:**
  * Make PromiseWrapper#all semantics equivalent ([22f59252](https://github.com/angular/angular/commit/22f59252))
  * Fix bug in TS indexOf ([cda35101](https://github.com/angular/angular/commit/cda35101))
* **fake_async:** fixed fakeAsync to throw instead of crashing on cjs ([5c53cf64](https://github.com/angular/angular/commit/5c53cf64))
* **forms:** disabled form tests on cjs until fakeAsync is fixed ([cd52d8a3](https://github.com/angular/angular/commit/cd52d8a3))
* **gulp:** prevent duplicate error messages ([381d4cb3](https://github.com/angular/angular/commit/381d4cb3), closes [#2021](https://github.com/angular/angular/issues/2021))
* **injectable:** add missing @Injectables annotations ([0c7f05f5](https://github.com/angular/angular/commit/0c7f05f5), closes [#2173](https://github.com/angular/angular/issues/2173))
* **package.json:** add `reflect-metadata` to package.json ([60801777](https://github.com/angular/angular/commit/60801777), closes [#2170](https://github.com/angular/angular/issues/2170))
* **render:**
  * only look for content tags in views that might have them. ([ba7956f5](https://github.com/angular/angular/commit/ba7956f5), closes [#2297](https://github.com/angular/angular/issues/2297))
  * don’t store a document fragment as bound element ([24bc4b66](https://github.com/angular/angular/commit/24bc4b66))
* **router:** event.defaultPrevented is not reliable (IE11) ([2287938f](https://github.com/angular/angular/commit/2287938f))
* **selector:** support multiple `:not` clauses ([62a95823](https://github.com/angular/angular/commit/62a95823), closes [#2243](https://github.com/angular/angular/issues/2243))
* **test:**
  * clang formatting errors ([05d66bba](https://github.com/angular/angular/commit/05d66bba))
  * solve CSS discrepancies across browsers ([fb42d590](https://github.com/angular/angular/commit/fb42d590), closes [#2177](https://github.com/angular/angular/issues/2177))
  * use a not expandable CSS rule in ShadowCSS spec (Firefox) ([588fbfd8](https://github.com/angular/angular/commit/588fbfd8), closes [#2061](https://github.com/angular/angular/issues/2061))
  * adds longer timers for NgZone and PromisePipe tests (IE11) ([661a0479](https://github.com/angular/angular/commit/661a0479), closes [#2055](https://github.com/angular/angular/issues/2055))
  * native shadow DOM is required (IE11, Firefox) ([9802debf](https://github.com/angular/angular/commit/9802debf))
  * function.name is not available (IE11) ([5103f080](https://github.com/angular/angular/commit/5103f080))
* **tests:** disable mobile emulation so benchmarks run on current chrome ([b071b66b](https://github.com/angular/angular/commit/b071b66b))
* **types:** parametrize QueryList. ([552985e3](https://github.com/angular/angular/commit/552985e3))


#### Features

* add support for the safe navigation (aka Elvis) operator ([a9be2ebf](https://github.com/angular/angular/commit/a9be2ebf), closes [#791](https://github.com/angular/angular/issues/791))
* **Directive:** convert properties to an array ([d7df853b](https://github.com/angular/angular/commit/d7df853b), closes [#2013](https://github.com/angular/angular/issues/2013))
* **ElementInjector:** support an arbitrary number of bindings ([b1c9bf14](https://github.com/angular/angular/commit/b1c9bf14), closes [#1853](https://github.com/angular/angular/issues/1853))
* **OpaqueToken:** now a const constructor ([c571b269](https://github.com/angular/angular/commit/c571b269))
* **RegExpWrapper:** implement a test method ([551586ce](https://github.com/angular/angular/commit/551586ce))
* **benchpress:** Add extension for ff metrics reporting ([b390f441](https://github.com/angular/angular/commit/b390f441), closes [#1976](https://github.com/angular/angular/issues/1976))
* **binding:** throw on binding to a blank alias ([ec2d8cc2](https://github.com/angular/angular/commit/ec2d8cc2), closes [#2068](https://github.com/angular/angular/issues/2068))
* **broccoli:** add incremental dartfmt plugin ([e5d06e47](https://github.com/angular/angular/commit/e5d06e47), closes [#2211](https://github.com/angular/angular/issues/2211))
* **change_detection:** added onInit and onCheck hooks ([c39c8ebc](https://github.com/angular/angular/commit/c39c8ebc))
* **change_detection.ts:** export PipeFactory ([93f464a1](https://github.com/angular/angular/commit/93f464a1), closes [#2245](https://github.com/angular/angular/issues/2245))
* **core:**
  * added support for detecting lifecycle events based on interfaces ([30b6542f](https://github.com/angular/angular/commit/30b6542f))
  * added missing interfaces for onDestroy and onAllChangesDone lifecycle events ([2b6a6530](https://github.com/angular/angular/commit/2b6a6530))
* **di:** added optional self parameter to Parent, Ancestor, and Unbounded ([34cfc9f4](https://github.com/angular/angular/commit/34cfc9f4))
* **dom:** add `setData()` method. ([6f3368ef](https://github.com/angular/angular/commit/6f3368ef))
* **facade:** add read/write access to global variables ([cdf791f0](https://github.com/angular/angular/commit/cdf791f0))
* **fakeAsync:** flush the microtasks before returning ([c7572ac1](https://github.com/angular/angular/commit/c7572ac1), closes [#2269](https://github.com/angular/angular/issues/2269))
* **form:** implemented an imperative way of updating the view by updating the value of a co ([652ed0cf](https://github.com/angular/angular/commit/652ed0cf))
* **forms:**
  * added support for status classes ([3baf815d](https://github.com/angular/angular/commit/3baf815d))
  * added touched and untouched to Control ([ec3a7828](https://github.com/angular/angular/commit/ec3a7828))
  * renamed control, control-group into ng-control and ng-control-group ([f543834b](https://github.com/angular/angular/commit/f543834b))
  * changed the selector of TemplatdrivenFormDirective to match <form> ([6bef1c41](https://github.com/angular/angular/commit/6bef1c41))
  * added ng-model ([559f54e9](https://github.com/angular/angular/commit/559f54e9))
  * implemented template-driven forms ([a9d6fd9a](https://github.com/angular/angular/commit/a9d6fd9a))
* **key_event:** alias esc to escape ([10bc7e94](https://github.com/angular/angular/commit/10bc7e94), closes [#2010](https://github.com/angular/angular/issues/2010))
* **reflector:** added a method to get type's interfaces ([34d75e89](https://github.com/angular/angular/commit/34d75e89))
* **render:** re-export render and export `DirectiveResolver` ([662da0d7](https://github.com/angular/angular/commit/662da0d7), closes [#2026](https://github.com/angular/angular/issues/2026))
* **router:** add the router bundle to the bundle task. ([05fa9bc9](https://github.com/angular/angular/commit/05fa9bc9))
* **router.js:**
  * export router injectables ([28ee0612](https://github.com/angular/angular/commit/28ee0612))
  * export routerDirectives ([1f20ef97](https://github.com/angular/angular/commit/1f20ef97))
* **test:**
  * added not.toBeNull ([74882c6c](https://github.com/angular/angular/commit/74882c6c))
  * add element probe ([f9908cd4](https://github.com/angular/angular/commit/f9908cd4), closes [#1992](https://github.com/angular/angular/issues/1992))
* **test_lib:**
  * add method to compare stringified DOM element ([c6335c12](https://github.com/angular/angular/commit/c6335c12), closes [#2106](https://github.com/angular/angular/issues/2106))
  * add `containsRegex` ([23d59df8](https://github.com/angular/angular/commit/23d59df8))
* **tests:** add TestComponentBuilder ([c32dbad7](https://github.com/angular/angular/commit/c32dbad7), closes [#1812](https://github.com/angular/angular/issues/1812))
* **transformers:** added support for lifecycle events ([f19970a4](https://github.com/angular/angular/commit/f19970a4))
* **view:**
  * introduce free embedded views ([5030ffb0](https://github.com/angular/angular/commit/5030ffb0))
  * add `AppViewListener` interface ([75578f41](https://github.com/angular/angular/commit/75578f41))


#### Breaking Changes

* 
- `Renderer.detachFreeHostView` was renamed to
  `Renderer.detachFreeView`
- `DomRenderer.getHostElement()` was generalized into
  `DomRenderer.getRootNodes()`

 ([5030ffb0](https://github.com/angular/angular/commit/5030ffb0))
* 
now a `const` constructor

 ([c571b269](https://github.com/angular/angular/commit/c571b269))
* 
Before

    @Directive(properties: {
      'sameName': 'sameName',
      'directiveProp': 'elProp | pipe'
    })

After

    @Directive(properties: [
      'sameName',
      'directiveProp: elProp | pipe'
    ])

 ([d7df853b](https://github.com/angular/angular/commit/d7df853b))


<a name"2.0.0-alpha.25"></a>
### 2.0.0-alpha.25 (2015-05-21)


#### Bug Fixes

* don't call onAllChangesDone on checkNoChanges ([a664f5a6](https://github.com/angular/angular/commit/a664f5a6))
* **XHRImpl:** fix errors, add a spec ([91ccc9af](https://github.com/angular/angular/commit/91ccc9af), closes [#1715](https://github.com/angular/angular/issues/1715))
* **browser:** template elements should have content imported instead of the element itself. ([c9ab8e4b](https://github.com/angular/angular/commit/c9ab8e4b))
* **di:** changed host and view injector to respect visibility ([705ee46f](https://github.com/angular/angular/commit/705ee46f))
* **element_injector:**
  * fixed element injector to inject view dependencies into its components ([b6b52e62](https://github.com/angular/angular/commit/b6b52e62))
  * fixed element injector to resolve dependencies of regular services ([28c2b8f4](https://github.com/angular/angular/commit/28c2b8f4))
* **forms:** changed forms to create only one value accessor instead of always creating Defau ([30c3e5a8](https://github.com/angular/angular/commit/30c3e5a8))
* **gulp:** continue watching when tasks throw ([ac28ac32](https://github.com/angular/angular/commit/ac28ac32), closes [#1915](https://github.com/angular/angular/issues/1915))
* **router:** router link should navigate to non-base Url. ([c4528321](https://github.com/angular/angular/commit/c4528321))
* **test_lib:** fixes nested beforeEach. ([826af401](https://github.com/angular/angular/commit/826af401))


#### Features

* **CD:** add support for === and !== ([0ae89ac0](https://github.com/angular/angular/commit/0ae89ac0))
* **PromisePipe:** remove ref onDestroy ([4afd2b41](https://github.com/angular/angular/commit/4afd2b41))
* **di:** changed toFactory to support dependency annotations ([f210c41c](https://github.com/angular/angular/commit/f210c41c))
* **forms:** migrated forms to typescript ([00c3693d](https://github.com/angular/angular/commit/00c3693d))
* **injector:** support forwardRef in toAlias ([fed86fc8](https://github.com/angular/angular/commit/fed86fc8))


<a name"2.0.0-alpha.24"></a>
### 2.0.0-alpha.24 (2015-05-19)


#### Bug Fixes

* **Compiler:** add an error when a directive is null or undefined ([25cd6e43](https://github.com/angular/angular/commit/25cd6e43), closes [#1908](https://github.com/angular/angular/issues/1908))
* **benchmark:**
  * change If for NgIf ([cdbb2473](https://github.com/angular/angular/commit/cdbb2473))
  * fixes ng-if ng-for renaming for templates. ([38926f71](https://github.com/angular/angular/commit/38926f71))
* **build:** npm shrinkwrap to pick up changed SHA1. ([04a9eb88](https://github.com/angular/angular/commit/04a9eb88))
* **directives:** fix import path ([c20060d2](https://github.com/angular/angular/commit/c20060d2))
* **errors:** require passing stack traces explicitly in ng2 own code ([8ab77353](https://github.com/angular/angular/commit/8ab77353))
* **examples:** prefix directives with Ng ([0e82970a](https://github.com/angular/angular/commit/0e82970a))
* **facade:** MapWrapper.createFromPairs ([af9dcad8](https://github.com/angular/angular/commit/af9dcad8), closes [#1640](https://github.com/angular/angular/issues/1640))
* **ng1 benchmarks:** revert *ng-if to ng-if ([909233f7](https://github.com/angular/angular/commit/909233f7))
* **router:**
  * use appRootComponentToken to get root route configs ([791caf00](https://github.com/angular/angular/commit/791caf00), closes [#1947](https://github.com/angular/angular/issues/1947))
  * improve route matching priorities ([5db89071](https://github.com/angular/angular/commit/5db89071))
  * generate links for router-link with baseHref ([390cfb79](https://github.com/angular/angular/commit/390cfb79))
  * sort possible routes by cost ([17392f66](https://github.com/angular/angular/commit/17392f66))
* **tree-differ:** treat symlinks to deleted paths as removals ([aad57954](https://github.com/angular/angular/commit/aad57954), closes [#1961](https://github.com/angular/angular/issues/1961))


#### Features

* allow for forward references in injection ([1eea2b25](https://github.com/angular/angular/commit/1eea2b25), closes [#1891](https://github.com/angular/angular/issues/1891))
* **change_detection:**
  * json pipe ([98603824](https://github.com/angular/angular/commit/98603824), closes [#1957](https://github.com/angular/angular/issues/1957))
  * uppercase and lowercase pipes ([7a4a6353](https://github.com/angular/angular/commit/7a4a6353))
  * implemented change detection that can be configured with pregenerated change det ([08f21dbf](https://github.com/angular/angular/commit/08f21dbf))
* **compiler:**
  * special-case class attribute in hostAttributes ([3011cd86](https://github.com/angular/angular/commit/3011cd86), closes [#1774](https://github.com/angular/angular/issues/1774), [#1841](https://github.com/angular/angular/issues/1841))
  * added support for [()] syntax ([685a6507](https://github.com/angular/angular/commit/685a6507))
* **di:**
  * added hostInjector and viewInjector to the Directive annotation ([b066b8d1](https://github.com/angular/angular/commit/b066b8d1))
  * removed publishAs ([3a53f679](https://github.com/angular/angular/commit/3a53f679))
* **element_injector:** allow @Optional for ProtoViewRef ([bb2eda2d](https://github.com/angular/angular/commit/bb2eda2d))
* **errors:** preserve stack traces of user exceptions in Dart ([b6f29b44](https://github.com/angular/angular/commit/b6f29b44))
* **facade:** toUpperCase and toLowerCase ([557d54b3](https://github.com/angular/angular/commit/557d54b3))
* **fakeAsync:** allow simulating the passage of time ([0f002a5b](https://github.com/angular/angular/commit/0f002a5b))
* **forms:** improved error messages ([11e43851](https://github.com/angular/angular/commit/11e43851), closes [#1839](https://github.com/angular/angular/issues/1839))
* **pipe:** reexported pipes to genereate docs ([155b1e2b](https://github.com/angular/angular/commit/155b1e2b))


#### Breaking Changes

* `AppViewManager.createInPlaceHostView` is replaced by
`AppViewManager.createRootHostView` (for bootstrap) and
`AppViewManager.createFreeHostView` (for imperative components).

The later creates new host elements that are not attached anywhere.
To attach them, use `DomRenderer.getHostElement(hostviewRef)`
to get the host element.

Closes #1920

 ([421d8916](https://github.com/angular/angular/commit/421d8916))
* - renames `DirectiveMetadataReader` into `DirectiveResolver`
  and removes `src/core/compiler/directive_metadata`.

Fixes #1712
Fixes #1713
 ([ecb06801](https://github.com/angular/angular/commit/ecb06801))


<a name"2.0.0-alpha.23"></a>
### 2.0.0-alpha.23 (2015-05-12)


#### Bug Fixes

* **change_detection:** updated dynamic change detector not to mutate when throwing ([d717529e](https://github.com/angular/angular/commit/d717529e), closes [#1762](https://github.com/angular/angular/issues/1762))
* **dart:** Remove unused imports. ([4ce0d5e0](https://github.com/angular/angular/commit/4ce0d5e0))
* **forms:** export directives as const in Dart ([5036086f](https://github.com/angular/angular/commit/5036086f), closes [#1283](https://github.com/angular/angular/issues/1283))
* **gulpfile:** fixed test.unit.dart to format dart code before running test ([92d6aa1f](https://github.com/angular/angular/commit/92d6aa1f))
* **location:** dartium does not like pushState with null. ([c2a42d5d](https://github.com/angular/angular/commit/c2a42d5d))
* **router:**
  * add baseUrl to relative paths, but not absolute. ([a5741541](https://github.com/angular/angular/commit/a5741541), closes [#1783](https://github.com/angular/angular/issues/1783))
  * reuse common parent components ([ac80df09](https://github.com/angular/angular/commit/ac80df09))
  * router-link works without params ([77d1fc14](https://github.com/angular/angular/commit/77d1fc14))
  * strip base href from URLs when navigating ([853d1de6](https://github.com/angular/angular/commit/853d1de6))
* **test_lib:** spy funcs should match null arguments ([84dc6ae7](https://github.com/angular/angular/commit/84dc6ae7))
* **transformer:** remove classDefParser in favor of hardcoded strings to speed up build ([01d5c295](https://github.com/angular/angular/commit/01d5c295))
* **view:** fixed ProtoViewFactory to get all property bindings ([7f976381](https://github.com/angular/angular/commit/7f976381))


#### Features

* **PromisePipe:** add pipe for promises ([74987585](https://github.com/angular/angular/commit/74987585))
* **VmTurnZone:** Rework the implementation to minimize change detection runs ([e8a6c95e](https://github.com/angular/angular/commit/e8a6c95e))
* **change_detection.js:** export null pipes ([4b62a722](https://github.com/angular/angular/commit/4b62a722), closes [#1624](https://github.com/angular/angular/issues/1624))
* **compiler:**
  * added support for host actions ([f9c1de46](https://github.com/angular/angular/commit/f9c1de46))
  * allow setting attributes on a host element ([51839ca6](https://github.com/angular/angular/commit/51839ca6), closes [#1402](https://github.com/angular/angular/issues/1402))
* **di:**
  * support type literals in DI ([358a6750](https://github.com/angular/angular/commit/358a6750))
  * expose parent injector ([2185e7ce](https://github.com/angular/angular/commit/2185e7ce))
  * components can self-publish via publishAs ([1a0da11e](https://github.com/angular/angular/commit/1a0da11e))
* **directives:** export collection of core directives ([a5638a94](https://github.com/angular/angular/commit/a5638a94), closes [#1524](https://github.com/angular/angular/issues/1524))
* **dom:** add getBaseHref method ([05219a54](https://github.com/angular/angular/commit/05219a54))
* **facade:** add equals method to StringMapWrapper ([aff85b50](https://github.com/angular/angular/commit/aff85b50))
* **gulpfuile:** added watch.js.dev ([3256ff1c](https://github.com/angular/angular/commit/3256ff1c))
* **lang:** support const expressions in TS/JS and Dart ([4665726f](https://github.com/angular/angular/commit/4665726f), closes [#1796](https://github.com/angular/angular/issues/1796))
* **material:**
  * add early version of md-grid-list. ([8ef183b5](https://github.com/angular/angular/commit/8ef183b5), closes [#1683](https://github.com/angular/angular/issues/1683))
  * early version of md-input ([ad239218](https://github.com/angular/angular/commit/ad239218), closes [#1753](https://github.com/angular/angular/issues/1753))
* **view:** allow to transplant a view into a ViewContainer at another place. ([4f3433b5](https://github.com/angular/angular/commit/4f3433b5), closes [#1492](https://github.com/angular/angular/issues/1492))


#### Breaking Changes

* 
VmTurnZone has been renamed to NgZone.

- The public API has not chnanged,
- The "outer" zone is now named "mount" zone (private to NgZone).

 ([e11c2054](https://github.com/angular/angular/commit/e11c2054))
* 
A collection of all the form directives is exported
under `formDirectives`
while those were previously available
under `FormDirectives`.

Closes #1804

 ([229e770a](https://github.com/angular/angular/commit/229e770a))


<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)


## Features

- **dart/transform:** Dedup getters, setters, & methods
  ([15376a6d](https://github.com/angular/angular/commit/15376a6d243740c73cf90f55525d1710cdd156f5))
- **facade:** add isType method
  ([e617ca63](https://github.com/angular/angular/commit/e617ca6323902bd98c0f1eb990b82f6b8d3c98e3))
- **parser:** support === and !== operators
  ([afe0e454](https://github.com/angular/angular/commit/afe0e454537f9252f9cf313647e649cfa464f96f),
   [#1496](https://github.com/angular/angular/issues/1496), [#1500](https://github.com/angular/angular/issues/1500))
- **router:** add initial implementation
  ([1b2754da](https://github.com/angular/angular/commit/1b2754dacdd15e8fea429d56cdacb28eae76d2b1))
- **view:** reimplemented property setters using change detection
  ([8ccafb05](https://github.com/angular/angular/commit/8ccafb0524e3ac4c51af34ef88e0fe27482336a6))


## Performance Improvements

- **benchmarks:**
  - benchmark that measure cost of dynamic components
  ([427f0d02](https://github.com/angular/angular/commit/427f0d021c51ea6923edd07574a4cc74a1ef84e6))
  - benchmark measuring cost of decorators (fixes #1479)
  ([9fc9d535](https://github.com/angular/angular/commit/9fc9d535667c620017367877dbc2a3bc56d358b7))


## Other (malformed commit messages)

- **other:**
  - feat: alllow specifying directives as bindings
  ([4bab25b3](https://github.com/angular/angular/commit/4bab25b3666f4247434ad5cb871906fb063fef51),
   [#1498](https://github.com/angular/angular/issues/1498))
  - fix: export ShadowDom strategies
  ([6896305e](https://github.com/angular/angular/commit/6896305e34082c246769829e4258631c1d2363d1),
   [#1510](https://github.com/angular/angular/issues/1510), [#1511](https://github.com/angular/angular/issues/1511))