[mixonic]

This release of Ember.js integrates the new Glimmer rendering engine and stabilizes a year of work by contributors. It is a backwards compatible drop-in upgrade that should also yield a significant performance bump for many use-cases.

Additionally it unblocks other feature work Ember has coming down the pipeline!

For those who haven't been keeping up with Ember or the Glimmer effort, I wrote a list of five things you should know about this release: http://madhatted.com/2016/11/30/5-things-to-know-about-ember... It should be approachable even if you don't know the framework well.

Congrats to all the contributors for making such a difficult change so easy for everyone else to use!