Hi all,
This week, either on Tuesday or Wednesday, we will be issuing a security and maintenance release to all supported branches of MediaWiki.
The new releases will be:
- 1.39.16 - 1.43.6 - 1.44.3 - 1.45.1
This will also resolve security issues in bundled extensions, along with bug fixes included for maintenance reasons.
These security issues also affect many unsupported versions of MediaWiki.
We will make the fixes available in the respective release branches and master in git. Tarballs will be available for the above mentioned point releases as well.
A summary of some of the security fixes that have gone into non-bundled MediaWiki extensions will also follow later.
As a reminder, MediaWiki 1.35 became end of life (EOL) in December 2023, MediaWiki 1.40 became EOL in June 2024, MediaWiki 1.41 became EOL in December 2024 and MediaWiki 1.42 became EOL in June 2025.
MediaWiki 1.39 (the old LTS before 1.43) becomes EOL at the end of the month - December 2025. It is strongly recommended to upgrade to 1.43 (the next LTS after 1.39), which will be supported until December 2027.
A formal EOL email for MediaWiki 1.39 will come later this month. This is because as per our support policy, it is to be supported until the end of the month, but we are not expecting any further changes to be made to the branch.
More information on these timelines can be viewed on the Version lifecycle page at [1].
mediawiki-l@lists.wikimedia.org