Ember 6.4 LTS just reached EOL (June 21, 2026); everything 5.x and earlier — including the common 3.28 LTS — is end of life. The LTS schedule, the Octane shift, and the ember-cli-update path.
Originally published on endoflife.ai.
Ember.js moves on a steady release train, designating Long-Term Support (LTS) releases on a regular cadence — which means older versions reach end of life just as steadily. As of now, Ember 6.x is the current line, with 6.8 and later supported; Ember 6.4 reached EOL on June 21, 2026, and every 5.x release and earlier is end of life, including the once-ubiquitous 3.28 LTS.
Ember version EOL schedule
Version
End of Life
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