Ember.js 2.3, a minor version release of Ember with backwards compatible
changes, is released today.
Ember.js 2.4 beta, the branch of Ember that will be released as stable in
roughly six weeks, is also being released today.
Changes in Ember.js 2.3
Ember.js 2.3 introduces a number of features we're excited to see in a stable
release.
ember-qunit 0.4.16+ is required for your codebase's test suite to be
compatible with Ember 2.3. See "Introducing Owners and Deprecating Containers"
below for more detail.