# Preparing for Discourse's upgrade to Ember 5

**URL:** <https://meta.discourse.org/t/preparing-for-discourses-upgrade-to-ember-5/287211>\
**Category:** Announcements\
**Created:** [December 7, 2023, 1:50pm UTC](https://meta.discourse.org/t/preparing-for-discourses-upgrade-to-ember-5/287211 "2023-12-07T13:50:32Z")\
**Posts on this page:** 1\
**Showing post:** 46

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**Author:** ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david)\
**Post date:** [January 10, 2024, 1:01pm UTC](https://meta.discourse.org/t/preparing-for-discourses-upgrade-to-ember-5/287211/46 "2024-01-10T13:01:49Z")

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The default Ember version [has now been updated](https://github.com/discourse/discourse/commit/7a8cbf8422c6eb4b4115f7e41ac9d6a9da688af2) in `main`/`tests-passed`. That means that local development environments, CI, and self-hosted sites will be using Ember 5 unless they temporarily opt-out via the `EMBER_VERSION=3` flag :ember:

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_[View the full topic](https://meta.discourse.org/t/preparing-for-discourses-upgrade-to-ember-5/287211)._