Prior to the 1.0 RC, Ember's API changed a lot because we were seeking for the best abstractions. We didn't want to lock ourselves in when there was a better wa

Prior to the 1.0 RC, Ember's API changed a lot because we were seeking for the best abstractions. We didn't want to lock ourselves in when there was a better way to do things. Now that we've hit 1.0 RC, the API is generally frozen. We'll only break existing APIs in exceptional cases. Once 1.0 Final is release we'll be sticking to SemVer.