Ember 3.7 Released

– By Melanie Sumner, Kenneth Larsen

Today the Ember project is releasing version 3.7 of Ember.js, Ember Data, and Ember CLI. This release kicks off the 3.8 beta cycle for all sub-projects. We encourage our community (especially addon authors) to help test these beta builds and report any bugs before they are published as a final release in six weeks' time. The ember-try addon is a great way to continuously test your projects against the latest Ember releases.

You can read more about our general release process here:


Ember.js is the core framework for building ambitious web applications.

Changes in Ember.js 3.7

Ember.js 3.7 is an incremental, backwards compatible release of Ember with bugfixes, performance improvements, and minor deprecations. There is zero (0) new feature, zero (0) deprecations, and three (3) bugfixes in this 3.7 version.

Note that in Ember.js 3.7 support for Node 4 has been explicitly dropped. Node 4 is no longer supported by the Node.js team either, and that Ember CLI had already dropped support in early 2018. This means that if you are on Node 4 and want to upgrade you will need to upgrade your version of Node first.

Node 6 support is planned to end in the next few months. Keep an eye on the release posts for more information on this.

New Features (0)

There are no new features in Ember.js 3.7.

Deprecations (0)

Deprecations are added to Ember.js when an API will be removed at a later date. Each deprecation has an entry in the deprecation guide describing the migration path to a more stable API. Deprecated public APIs are not removed until a major release of the framework.

Consider using the ember-cli-deprecation-workflow addon if you would like to upgrade your application without immediately addressing deprecations.

For more details on changes in Ember.js 3.7, please review the Ember.js 3.7.0 release page.

Ember Data

Ember Data is the official data persistence library for Ember.js applications.

Changes in Ember Data 3.7

No changes in Ember Data 3.7

New Features (0)

No new features introduced in Ember Data 3.7.

Deprecations (0)

No new deprecations introduced in Ember Data 3.7.

For more details on changes in Ember Data 3.7, please review the Ember Data 3.7.0 release page.

Ember CLI

Ember CLI is the command line interface for managing and packaging Ember.js applications.

Upgrading Ember CLI

You may upgrade Ember CLI using the ember-cli-update project:

npm install -g ember-cli-update

This utility will help you to update your app or add-on to the latest Ember CLI version. You will probably encounter merge conflicts, in which the default behavior is to let you resolve conflicts on your own. For more information on the ember-cli-update project, see the github README.

While it is recommended to keep Ember CLI versions in sync with Ember and Ember Data, this is not required. After updating ember-cli, you can keep your current version(s) of Ember or Ember Data by editing package.json to undo the changes to the lines containing ember-source and ember-data.

Changes in Ember CLI 3.7

New Features (2)

Compatibility section in addon README (1 of 2)

Whenever you generate a new addon using Ember CLI it will automatically generate a README file for your addon. With Ember CLI 3.7 this README will now include a compatibility section that will allow you to better communicate to users of the addon what is needed to use the addon.

Remove last usage of Babel 6 (2 of 2)

Ember CLI 3.7 has removed the last usage of Babel 6 which was used for supporting compiling templates in addon/ and supporting addon-test-support/ in addons that themselves do not have any .js processors (e.g. no dependency on ember-cli-babel).

This change is not a breaking change since the module compilation between Babel 6 and Babel 7 is compatible.

Deprecations (0)

No new deprecations introduced in Ember CLI 3.7.

For more details on the changes in Ember CLI 3.7 and detailed upgrade instructions, please review the Ember CLI 3.7.0 release page.

Thank You!

As a community-driven open-source project with an ambitious scope, each of these releases serve as a reminder that the Ember project would not have been possible without your continued support. We are extremely grateful to our contributors for their efforts.