MediaWiki 1.39 End of Life
Support dates and upgrade guidance — rebuilt from live data.
MediaWiki 1.39 reached end of life on 31 Dec 2025. It no longer receives security fixes.
Support timeline
Official dates from the MediaWiki release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 30 Nov 2022 | — |
| End of life | 31 Dec 2025 | 0.6 years ago |
| Latest release | 1.39.17 · 16 Dec 2025 | final |
Where to go from 1.39
Recommended target: MediaWiki 1.46 (supported until 31 Jul 2027).
The newest actively supported branch is MediaWiki 1.46 (latest release 1.46.0).
Frequently asked questions
Is MediaWiki 1.39 still safe to use?
MediaWiki 1.39 reached end of life on 31 Dec 2025, 221 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download MediaWiki 1.39?
Yes — the final release (1.39.17) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade MediaWiki 1.39 to?
Upgrade to MediaWiki 1.46, the newest actively supported branch (supported until 31 Jul 2027).