Ember v2.1.0-beta.4 发布，此版本主要是 bug 修复：
#12075 [PERF] Avoid creating a run-loop for events that are unhandled.
#12260 [BUGFIX] Ensure init is completed before didReceiveAttrs is fired.
#12323 [BUGFIX beta] Make {{get something 'path.goes.here'}} work.
#12331 [BUGFIX beta] Update backburner.js to prevent issues when interleaving run.later and run.next.
下载：
https://github.com/emberjs/ember.js/archive/v2.1.0-beta.4.zip
来自:开源中国社区
