Ember 7.0 Released

May 29, 2026 –<br>By

Jared Galanis,<br>Chris Manson,<br>Katie Gengler

The Ember project is excited to announce the release of Ember v7.0. Following Ember's Major Version Policy, the major includes only the removal of features that were deprecated until 7.0 as well as other bugfixes. This release of Ember.js means the previous version, 6.12, is now an LTS (Long Term Support) version.

When it comes to introducing new features, Ember generally aims to ship new features in minor releases, offering backwards compatibility for existing code at the same time as giving developers the chance to try out new capabilities. This approach reduces the challenges that teams face for major upgrades, compared to producing big, breaking, splashy major versions with lots of new features.

Looking back at improvements in the 6.x series

In Ember 6.x minor releases, we landed many notable features:

In Ember 6.1 we began publishing ember-source as a v2 addon, which enabled Embroider to consume ember-source directly.

In Ember 6.3 we added support for template-tag components as route templates per RFC #1046.

In Ember 6.8 we landed a new app blueprint with Embroider and Vite-based build system as the default.

Also in Ember 6.8 we moved to strict-mode (aka template-tag) component authoring format as the default.

Also in Ember 6.8 we added the renderComponent API that allows rendering individual components without a full project.

Also in Ember 6.8 we built in tracked versions of JavaScript's native collection types: trackedArray, trackedObject, trackedMap, trackedSet, trackedWeakMap, and trackedWeakSet.

Ember v6.8 was the biggest change to how an Ember project is built in recent memory. The Ember Core Teams have been working on the Embroider+Vite build system and the strict-mode-templates (a.k.a template-tag) for literal years, and this is the first version that we made them the default experience for newly generated Ember apps. Early adopters have been opting into these features for quite some time, but generating an app with Ember v6.8 (or newer) now gives you an incredibly modern developer experience 🎉

Along with these features, countless bugfixes, deprecations that cleared the way<br>for future improvements, RFCs setting the stage for new features, in 6.x the community also:

Merged the glimmer-vm monorepo into ember.js to faciliate faster iteration on the rendering engine and the integration with ember.js.

Merged the router.js repo into the ember.js repo to prepare for experimentation with a new router architecture and the implementation of the Route Manager RFC

Updated our packages to publish via OIDC.

Updated broccoli and other dependencies in an ongoing effort to reduce the number of security vulnerabilities. Current vulnerability warnings are only a concern in development mode and should not be exploitable but are annoying.

Strived to reduce the number of deprecation warnings when generating a new Ember App. This is an ongoing task.

The v2 of Glint was released. This enabled us to make the template-tag component authoring format the default.

Created the template tag codemod to help migration to the new authoring format.

Created the Vite codemod to help migration to the new build system.

Created a legacy Classic Blueprint (@ember-tooling/classic-build-app-blueprint) and supported it in ember-cli-update so that projects can update without moving to the new build system, if necessary.

Thank you to all the contributors that helped make this major-version cycle possible!

How to upgrade to Ember 7.0

The most common approach for upgrading to 7.0 is to upgrade your app to the last<br>version of Ember 6, which is 6.12, resolve all deprecation warnings, and then upgrade to 7.0. If your app or addon runs with no deprecations in the latest release of 6.12,<br>you should be able to upgrade to Ember 7 with no additional changes. Step-by-step directions are below.

If your app is at a much earlier version in the 6.x series, we<br>recommend upgrading in steps across the LTS versions: 6.4, 6.8, and then 6.12.

Follow these steps in order:

Consider upgrading addons used in your app to the latest version that you can. This will reduce the uses of deprecated APIs in your dependencies.

Upgrade your project to the latest patch version of Ember 6.12.<br>Many projects can do this by running<br>npx ember-cli-update --to 6.12.

When upgrading across the 6.8 boundary, due to changes in the build system, you need to adjust the configuration for ember-cli.

Make sure your app builds successfully.

Resolve all deprecation warnings. These Deprecated APIs are removed in Ember 7.0. You may need to upgrade some of your addon dependencies if they are using deprecated APIs.<br>See the Ember Deprecation Guide<br>for more details about specific deprecations and how to resolve them.<br>Applications that need to upgrade through several versions may want to<br>consider isolating individual deprecations by using<br>ember-cli-deprecation-workflow.

Make sure your...