MediaWiki 1.39 · Version Status
MediaWiki 1.39 End of Life Date
MediaWiki 1.39 end-of-life date, support status, and CVE risk. Data reconciled from official vendor documentation and endoflife.date at every build; the source of each date is on the product page.
⚠
MediaWiki 1.39 is past end of life. This version no longer receives security patches. 253 days past EOL — migrate to a supported version immediately.
EOL Date
Dec 31, 2025
253 days past EOL
Latest Release
1.39.17
LTS release
Release Date
Nov 30, 2022
MediaWiki 1.39 series
Lifecycle detail
MediaWiki 1.39 was released on November 30, 2022 and support ended on December 31, 2025 — a supported lifespan of 3 years and 1 month, in line with the 3 years and 3 months median for MediaWiki LTS releases. It was a long-term support (LTS) release, so it received a longer patch window than the interim releases around it. The last patch it will ever receive is 1.39.17, published December 16, 2025 — 15 days before support ended. It has been without security patches for 8 months. 1 newer MediaWiki release has shipped since.
Attack Surface
10/30 Medium tier
CISA KEV Exposure
0/20 Not in KEV
Extended Support
0/10 Available
EOL Risk Score™ — proprietary methodology by endoflife.ai. Factors: EOL recency, attack surface breadth, CISA KEV catalog presence, extended support availability. Updated at every build.
Methodology → ·
View score card →
Extended Support
Extended MediaWiki 1.39 support is available
Commercial vendors offer security patches beyond EOL. Compare your options.
Compare Options →
| Version | Latest | EOL Date | Status |
|---|
| 1.31 LTS |
1.31.16 |
Sep 30, 2021 |
EOL |
| 1.32 |
1.32.6 |
Jan 24, 2020 |
EOL |
| 1.33 |
1.33.4 |
Jun 30, 2020 |
EOL |
| 1.34 |
1.34.4 |
Nov 30, 2020 |
EOL |
| 1.35 LTS |
1.35.14 |
Dec 21, 2023 |
EOL |
| 1.36 |
1.36.4 |
Jun 3, 2022 |
EOL |
| 1.37 |
1.37.6 |
Nov 30, 2022 |
EOL |
| 1.38 |
1.38.7 |
Jun 30, 2023 |
EOL |
What does MediaWiki 1.39 end of life mean?
When MediaWiki 1.39 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running MediaWiki 1.39 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to MediaWiki 1.46 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does MediaWiki 1.39 reach end of life?
MediaWiki 1.39 reached end of life on December 31, 2025. This version is no longer receiving security patches.
Is MediaWiki 1.39 still supported?
No. MediaWiki 1.39 reached end of life on December 31, 2025 and is no longer receiving security patches.
What should I upgrade to from MediaWiki 1.39?
The recommended upgrade from MediaWiki 1.39 is
MediaWiki 1.46 — the latest actively supported version. Check the
MediaWiki full timeline for all supported versions.
What are the security risks of running MediaWiki 1.39 past EOL?
When MediaWiki 1.39 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL MediaWiki should migrate immediately or implement compensating controls.