From 1408357198a95c7dd3a5365f259e259e5ad8debf Mon Sep 17 00:00:00 2001 From: Victor Berchet Date: Wed, 31 May 2017 14:34:51 -0700 Subject: [PATCH] docs: add details about the WeakMap polyfill for 4.x in the changelog (#17146) --- CHANGELOG.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index 101d405987..132278f2d6 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -342,7 +342,9 @@ Note: 4.1.0-beta.0 release also contains all the changes present in the 4.0.1 re * **router:** should pass new data to Observable when query params change ([#15387](https://github.com/angular/angular/issues/15387)) ([08f2f08](https://github.com/angular/angular/commit/08f2f08)), closes [#15290](https://github.com/angular/angular/issues/15290) * prevent strictNullChecks support until [#15432](https://github.com/angular/angular/issues/15432) is fixed ([#15434](https://github.com/angular/angular/issues/15434)) ([b800a0c](https://github.com/angular/angular/commit/b800a0c)) +### BREAKING CHANGES +From 4.0.0 @angular/core uses a [`WeakMap`](https://github.com/angular/angular/commit/52b21275f4c2c26c46627f5648b41a33bb5c8283), a polyfill needs to be included for [browsers that do not support it natively](http://kangax.github.io/compat-table/es6/#test-WeakMap). # [4.0.0-rc.6](https://github.com/angular/angular/compare/4.0.0-rc.5...4.0.0-rc.6) (2017-03-23)