See comment here: https://discuss.emberjs.com/t/ember-js-ember-3-16-released/17507/2, when you go to http://emberjs.com/builds/ it still shows 3.15 Took a look at https://github.com/ember-learn/ember-website/blob/master/app/models/project.js but not sure what's wrong, any ideas? Aside: Submitted update for it to be https://emberjs.com/releases/, not /builds redirect ... here https://github.com/ember-learn/ember-blog/pull/534