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docs: add IE mobile to deprecated browsers (#37313) 

Mobile versions of IE should also be deprecated, as the same reasons for deprecating IE 9 and 10 apply.

PR Close #37313
This commit is contained in:
Andrew Scott 2020-05-27 10:07:06 -07:00 committed by Matias Niemelä
parent a62c1c441c
commit 64fc8b8ee5
2 changed files with 10 additions and 9 deletions
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5
aio/content/guide/browser-support.md
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@ -54,16 +54,17 @@ Angular supports most recent browsers. This includes the following specific vers
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<div> 11, 10*, 9* ("compatibility view" mode not supported) </div>
<div>*deprecated in v10, see the <a href="/guide/deprecations#ie-9-10">deprecations guide</a>.</div>
<div>*deprecated in v10, see the {@link guide/deprecations#ie-9-10-and-mobile deprecations guide}.</div>
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IE Mobile
IE Mobile*
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<div>*deprecated in v10, see the {@link guide/deprecations#ie-9-10-and-mobile deprecations guide}.</div>
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aio/content/guide/deprecations.md
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@ -59,7 +59,7 @@ v9 - v12
| `@angular/core/testing` | [`TestBed.get`](#testing) | <!--v9--> v12 |
| `@angular/router` | [`ActivatedRoute` params and `queryParams` properties](#activatedroute-props) | unspecified |
| template syntax | [`/deep/`, `>>>`, and `::ng-deep`](#deep-component-style-selector) | <!--v7--> unspecified |
| browser support | [`IE 9 and 10`](#ie-9-10) | <!--v10--> v11 |
| browser support | [`IE 9 and 10, IE mobile`](#ie-9-10-and-mobile) | <!--v10--> v11 |
@ -459,17 +459,17 @@ export class MyModule {
```
{@a ie-9-10}
### IE 9 and 10 support
{@a ie-9-10-and-mobile}
### IE 9, 10, and IE mobile support
Support for IE 9 and 10 has been deprecated and will be removed in a future version.
Support for IE 9 and 10 has been deprecated, as well as support for IE Mobile. These will be dropped in a future version.
Supporting outdated browsers like these increases bundle size, code complexity, and test load, and also requires time and effort that could be spent on improvements to the framework.
For example, fixing issues can be more difficult, as a straightforward fix for modern browsers could break old ones that have quirks due to not receiving updates from vendors.
The final decision was made on three key points:
* __Vendor support__: Microsoft dropped support of IE 9 and 10 on 1/12/16, meaning they no longer provide security updates or technical support.
* __Usage statistics__: We looked at usage trends for IE 9 and 10 from various sources and all indicated that usage percentages were extremely small (fractions of 1%).
* __Feedback from partners__: We also reached out to some of our Angular customers and none expressed concern about dropping IE 9 and 10 support.
* __Vendor support__: Microsoft dropped support of IE 9 and 10 on 1/12/16, meaning they no longer provide security updates or technical support. Additionally, Microsoft dropped support for of Windows 10 Mobile in December 2019.
* __Usage statistics__: We looked at usage trends for IE 9 and 10 (as well as IE Mobile) from various sources and all indicated that usage percentages were extremely small (fractions of 1%).
* __Feedback from partners__: We also reached out to some of our Angular customers and none expressed concern about dropping IE 9, 10, nor IE Mobile support.
{@a wrapped-value}