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chore(changelog): 3.9.0 changelog
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‎CHANGELOG.md‎

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<a name="3.9.0"></a>
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# [3.9.0](https://github.com/ionic-team/ionic/compare/v3.8.0...v3.9.0) (2017-11-08)
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### Upgrade Instructions
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`ionic-angular` 3.9.0 adds support for `@angular` 5.0.0 :tada:! It is a drop-in replacement for `ionic-angular` 3.8.x.
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To update, remove existing `node_modules` and any lock files, and then update `package.json` to the following deps.
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```
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"dependencies" : {
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...
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"@angular/common": "5.0.0",
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"@angular/compiler": "5.0.0",
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"@angular/compiler-cli": "5.0.0",
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"@angular/core": "5.0.0",
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"@angular/forms": "5.0.0",
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"@angular/http": "5.0.0",
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"@angular/platform-browser": "5.0.0",
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"@angular/platform-browser-dynamic": "5.0.0",
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"@ionic/storage": "2.1.3",
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"ionic-angular": "3.9.0",
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"rxjs": "5.5.2",
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"zone.js": "0.8.18"
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...
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},
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"devDependencies: {
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"@ionic/app-scripts": "3.1.0"
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"typescript" : "2.4.2"
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}
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```
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If your app uses RXJS, see the instructions below to update.
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### RXJS 5.5.2 Updates
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The recent update of RXJS includes a change in how operators are applied.
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Traditionally, operators were applied like this:
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```typescript
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import 'rxjs/add/operator/debounceTime';
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import 'rxjs/add/operator/switchMap';
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export MyClass {
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someMethod(){
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// Using Reactive Forms
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this.input.valueChanges
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.debounceTime(500)
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.switchMap(inputVal => this.service.get(inputVal))
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.subscribe(res => console.log(res))
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}
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}
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```
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This approach involved modifying the Observable prototype and patching on the
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methods.
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RXJS 5.5 introduces a different way to do this that can lead to significantly
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smaller code bundles, lettable operators.
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To use lettable operators, modify the code from above to look like this:
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```typescript
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//Use Deep imports here for smallest bunlde size
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import { debounceTime } from 'rxjs/operators/debounceTime';
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import { switch } from 'rxjs/operators/switchMap';
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export MyClass {
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someMethod(){
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// Using Reactive Forms
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// We use the new `.pipe` method on the observable
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// too apply operators now
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this.input.valueChanges
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.pipe(
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debounceTime(500),
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switchMap(inputVal => this.service.get(inputVal))
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)
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.subscribe(res => console.log(res))
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}
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}
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```
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This slight change allows only import the operators we need in our code. This will result in a smaller, faster application. This example uses Deep Imports, which allow the module we want to import to be isolated.
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Take a look at [this
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doc](https://github.com/ReactiveX/rxjs/blob/master/doc/lettable-operators.md) for more information.
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### Bug Fixes
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* **action-sheet:** move box-shadow to first group ([4f3e91b](https://github.com/ionic-team/ionic/commit/4f3e91b))
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* **alert:** focus input after it is ready ([#13259](https://github.com/ionic-team/ionic/issues/13259)) ([e555eae](https://github.com/ionic-team/ionic/commit/e555eae))
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* **datetime:** use spread operator to copy pickerOptions ([#13202](https://github.com/ionic-team/ionic/issues/13202)) ([2ab8385](https://github.com/ionic-team/ionic/commit/2ab8385)), closes [#11641](https://github.com/ionic-team/ionic/issues/11641)
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* **input:** better support for WKKeyboard ([#13106](https://github.com/ionic-team/ionic/issues/13106)) ([e7ac15f](https://github.com/ionic-team/ionic/commit/e7ac15f))
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* **tabs:** no safe area padding for top tabs ([236e7f8](https://github.com/ionic-team/ionic/commit/236e7f8))
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* **tap-click:** clear activated state on activable element when appropriate ([#13258](https://github.com/ionic-team/ionic/issues/13258)) ([5742540](https://github.com/ionic-team/ionic/commit/5742540)), closes [#13044](https://github.com/ionic-team/ionic/issues/13044)
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* **VirtualScroll:** stop from resizing while out of view ([#13143](https://github.com/ionic-team/ionic/issues/13143)) ([6978bb5](https://github.com/ionic-team/ionic/commit/6978bb5))
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<a name="3.8.0"></a>
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# [3.8.0](https://github.com/ionic-team/ionic/compare/v3.7.1...v3.8.0) (2017-10-26)
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‎package.json‎

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{
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"private": true,
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"name": "ionic2",
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"version": "3.8.0",
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"version": "3.9.0",
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"description": "A powerful framework for building mobile and progressive web apps with JavaScript and Angular",
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"keywords": [
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"ionic",
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"pre-push#master": [
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"test"
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]
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}
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}

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