Ember.js v2.2.0-beta.2 发布，此版本主要是 bug 修复，更新内容如下：
#12445 [BUGFIX] Ensure rest arg positionalParams can be supplied as hash arguments.
#12456 [BUGFIX] Allow usage of bound properties in {{link-to}} for bubbles, preventDefault, target, replace, and disabledWhen.
#12503 [BUGFIX] Add assertions for tagless components that include event handler functions (i.e. click).
#12464 [BUGFIX] Ember.String.htmlSafe() should return a instance of SafeString for null / undefined.
#12463 [BUGFIX] Fix uglification introduced bug with super wrapping.
#12519 [BUGFIX] Ensure closure actions are wrapped in a run loop.
下载：https://github.com/emberjs/ember.js/archive/v2.2.0-beta.2.zip。
来自:开源中国社区
