Today the Ember project is releasing version 3.12 of Ember.js, Ember Data, and Ember CLI. This release of Ember.js is an LTS (Long Term Support) candidate. LTS candidates contain no new features, and have an extended support schedule. To learn about the next wave of features coming in future releases, see the Octane release plan post.
This is a companion discussion topic for the original entry at https://emberjs.com/blog/2019/08/16/ember-3-12-released.html