Drupal 9.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Drupal 9.1 reached end of life on 8 Dec 2021. It no longer receives security fixes.
Support timeline
Official dates from the Drupal release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 2 Dec 2020 | — |
| End of life | 8 Dec 2021 | 4.7 years ago |
| Active support ended | 16 Jun 2021 | security fixes only after this |
| Latest release | 9.1.15 · 24 Nov 2021 | final |
Where to go from 9.1
Recommended target: Drupal 11.4 (supported until 7 Jul 2027).
The newest actively supported branch is Drupal 11.4 (latest release 11.4.5).
Frequently asked questions
Is Drupal 9.1 still safe to use?
Drupal 9.1 reached end of life on 8 Dec 2021, 1,705 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Drupal 9.1?
Yes — the final release (9.1.15) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Drupal 9.1 to?
Upgrade to Drupal 11.4, the newest actively supported branch (supported until 7 Jul 2027).