Ember 4.10 Released

– By The Ember Learning Team

Today the Ember project is releasing version 4.10 of Ember.js, Ember Data, and Ember CLI.

This release kicks off the 4.11 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 4.10

Ember.js 4.10 is an incremental, backwards compatible release of Ember with bug fixes, performance improvements, and minor deprecations.

Bug Fixes

Ember.js 4.10 introduced 2 bug fixes.

  • #20327 - Fix the types for the mutation-methods of NativeArray
  • #20283 - revert TS compilerOptions.target to ES2017


Ember.js 4.10 introduced 3 features.

  • #20270 / #20271 - Add new imports for getOwner and setOwner from @ember/owner and introduce new @ember/routing sub-modules
  • #20253 - Add the Resolver type to preview types
  • #20319 - resolve services with Owner.lookup


Ember.js 4.10 introduced 3 deprecations.

  • #20341 - Deprecations for importing htmlSafe and isHTMLSafe from @ember/string. They have moved to @ember/template
  • #20344 - Deprecate @ember/string when used from ember-source. You should use the @ember/string-addon
  • #20342 - Deprecate @ember/error

For more details on changes in Ember.js 4.10, please review the Ember.js 4.10.0 release page.

Ember Data

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

Changes in Ember Data 4.10

Due to low availability for the Ember Data team this cycle, Ember Data does not have a new release, so it remains at 4.9.

Please see the Ember 4.0 release blog post for details about v4.9 of Ember Data.

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:

npx ember-cli-update

This utility will help you to update your app or addon 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 revert the changes to the lines containing ember-source and ember-data.

Changes in Ember CLI 4.10

Bug Fixes

Ember CLI 4.10 introduced 0 bug fixes.


Ember CLI 4.10 introduced 5 features.

  • #10048 Make addAddonsToProject support creating a new project with custom target directory
  • #10054 Conditionally apply ESLint parser options in app and addon blueprints
  • #10060 Replace eslint-plugin-node with eslint-plugin-n in blueprints
  • #10062 Update Prettier config in blueprints to only use single quotes for .js and .ts files
  • #10132 Add @ember/string as a dependency of projects


Ember CLI 4.10 introduced 0 deprecations.

For more details on the changes in Ember CLI 4.10 and detailed upgrade instructions, please review the Ember CLI 4.10.0 release page.

Thank You!

As a community-driven open-source project with an ambitious scope, each of these releases serves 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.