Formally EOL MW 1.35 (LTS)
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	Reedy
	Jun 25 2023, 3:06 PM

Description

Originally at the end of September 2023...

Most people should probably upgrade to MW 1.39 as the next LTS, supported until November 2025.

However, as 1.39 was late (released in November 2022), 1.35 should be supported till the end of November 2023, as per the "year overlap" commitment.

This was announced in {T340867}.

Therefore, the EOL of 1.35 will co-incide with the release of MW 1.35.14 in December 2023.

Previous: T330174: Formally EOL MW 1.38

As per the MediaWiki version lifecycle[1], I would like to announce the formal end of life (EOL) of MediaWiki 1.35 as of today, Thursday December 21, 2023.

1.35.14 is expected to be the last release for this branch.

This means that MediaWiki 1.35 will no longer receive maintenance or security backports. It is therefore strongly discouraged that you continue to use it.

It is recommended to upgrade either to MediaWiki 1.39 (LTS), which will be supported until November 2025, 1.40, which will be supported until June 2024, or to 1.41 (due to be released today, Thursday December 21, 2023) which will be supported until December 2024.

Thanks!


Sam Reed

[1] https://www.mediawiki.org/wiki/Version_lifecycle

Details

Due Date: Dec 22 2023, 11:30 PM

	Subject	Repo	Branch	Lines +/-
	Drop REL1_35 support in CI	integration/config	master	+0 -223

Customize query in gerrit

Related Objects
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Status	Subtype	Assigned	Task
Resolved	Request	Jdforrester-WMF	T309694 Archive the LocalisationUpdate extension (late 2023)
Resolved		Reedy	T340396 Formally EOL MW 1.35 (LTS)
Resolved		Reedy	T347649 Release MediaWiki 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		Reedy	T347650 Tracking bug for MediaWiki 1.35.14/1.39.6/1.40.2/1.41.0
Resolved	Security	sbassett	T347726 CVE-2023-51704: group-.*-member messages are not properly escaped on Special:log/rights
Resolved		Reedy	T347651 Obtain CVEs for 1.35.14/1.39.6/1.40.2/1.41.0 security releases
Resolved		Reedy	T347652 Write and send pre-release announcements for MediaWiki 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		Reedy	T347653 Write and send release announcements for MediaWiki 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		Reedy	T347654 Tag 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		Reedy	T347655 Update onwiki news and Module:Version
Resolved		Reedy	T347656 Update onwiki release notes for 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		Reedy	T347657 Update Wikidata Q83
Resolved		Reedy	T347658 Update HISTORY in master after 1.35.14/1.39.6/1.40.2/1.41.0
Resolved		mmartorana	T347659 Write and send supplementary release announcement for extensions and skins with security patches (1.35.14/1.39.6/1.40.2/1.41.0)