<a name="4.2.0-rc.1"></a>

# [4.2.0-rc.1](https://github.com/angular/angular/compare/4.2.0-rc.0...4.2.0-rc.1) (2017-05-26)

### Bug Fixes

* **animations:** repair flicker issues with WA polyfill ([#16937](https://github.com/angular/angular/issues/16937)) ([e7d9fd8](https://github.com/angular/angular/commit/e7d9fd8)), closes [#16919](https://github.com/angular/angular/issues/16919) [#16918](https://github.com/angular/angular/issues/16918)

* **animations:** use a lightweight renderer for non-animation components ([#17003](https://github.com/angular/angular/issues/17003)) ([3ab86bd](https://github.com/angular/angular/commit/3ab86bd))

* **compiler:** compile `.ngfactory.ts` files even if nobody references them. ([#16899](https://github.com/angular/angular/issues/16899)) ([573b861](https://github.com/angular/angular/commit/573b861)), closes [#16741](https://github.com/angular/angular/issues/16741)

* **compiler:** do not report type errors for arguments with `@Inject` ([#16222](https://github.com/angular/angular/issues/16222)) ([27761b4](https://github.com/angular/angular/commit/27761b4)), closes [#15424](https://github.com/angular/angular/issues/15424)

* **core:** make decorators closure safe ([#16905](https://github.com/angular/angular/issues/16905)) ([a80ac0a](https://github.com/angular/angular/commit/a80ac0a)), closes [#16889](https://github.com/angular/angular/issues/16889)

* **tsc-wrapped:** ignore `|null` and `|undefined` when collecting types ([#16222](https://github.com/angular/angular/issues/16222)) ([1651a8f](https://github.com/angular/angular/commit/1651a8f))

* **tsc-wrapped:** resolve short-hand literal values to locals ([#16873](https://github.com/angular/angular/issues/16873)) ([11c10b2](https://github.com/angular/angular/commit/11c10b2))

### Features

* **compiler:** add location note to extracted xliff2 files ([#16791](https://github.com/angular/angular/issues/16791)) ([08dfe91](https://github.com/angular/angular/commit/08dfe91)), closes [#16531](https://github.com/angular/angular/issues/16531)

* **core:** update zone.js to 0.8.10 and expose the flush method ([#16860](https://github.com/angular/angular/issues/16860)) ([85d4c4b](https://github.com/angular/angular/commit/85d4c4b))

* **tsc-wrapped:** support template literals in metadata collection ([#16880](https://github.com/angular/angular/issues/16880)) ([6e41add](https://github.com/angular/angular/commit/6e41add))