I tried to search about this and could not find any deprecation note… Where can I find the explanation for making aliasMethod private? What’s the rational?
Could just be a doc issue, I would raise an issue on github to question https://github.com/emberjs/ember.js/blob/v2.0.1/packages/ember-metal/lib/mixin.js#L772
Edit: I went ahead and created an issue https://github.com/emberjs/ember.js/issues/12238
Sent a PR to update to remove the private flag and it was merged, so safe to say you can can consider it public