Last update on: 2013-06-monthly
1.21wmf1 deployed to all WMF wikis
We've deployed 1.21wmf2 to the test wikis, mediawiki.org, and the Phase I sites except for Meta and Commons. We'll deploy 1.21wmf2 to Meta and Commons on Monday, October 22nd as part of the English Wikipedia deployment window.
(Phase I deployment was delayed due to a parser cache issue.)
We've deployed MediaWiki 1.21wmf2 to all the Phase I wikis, and will deploy to English Wikipedia on Monday, October 22nd.
1.21wmf2 deployed to all WMF wikis
We've deployed MediaWiki 1.21wmf2 to all wikis. This branch contained the ContentHandler code necessary for supporting Wikidata, as well as high-resolution image support, some refactoring of the CologneBlue skin, and a new "Sites" backend (also used by Wikidata). Deployment of MediaWiki 1.21wmf3 begins Monday, October 29 and will continue through Wednesday, November 7.
We started the MediaWiki 1.21 series this month. We deployed MediaWiki 1.21wmf1 and 1.21wmf2 to all wikis, and started to deploy 1.21wmf3. 1.21wmf2 contained a number of significant features: ContentHandler code necessary for supporting Wikidata, high-resolution image support, some refactoring of the CologneBlue skin, and a new "Sites" back-end (also used by Wikidata).
1.21wmf3 deployed to all WMF wikis
1.21wmf4 deployed to all WMF wikis
We rolled out 1.21wmf5 to the non-Wikipedia sites today, after a brief reversion and re-deployment to fix breakage in how we were displaying some styling (details). We are on track to deploy 1.21wmf5 to English Wikipedia on Monday, December 3.
On Friday, 30 November, we will probably revert the most recent changes in LabeledSectionTransclusion, because of performance issues we discovered this week. This will affect all non-Wikipedia sites and may affect how templates and transclusions are displayed; if you changed pages to accommodate the LabeledSectionTransclusion changes, you may want to undo those changes on Friday. We are on track to deploy 1.21wmf5 to English Wikipedia on Monday, 3 December.
Wikimedia engineers deployed 1.21wmf3 and 1.21wmf4 to all Wikimedia sites, and began deploying 1.21wmf5 (with a momentary breakage). These updates included many significant improvements, including one-click (AJAX) patrolling, for both new page and diff patrol, and a Template Sandbox, which lets users preview changes to a template by previewing an example page where it's used.
MediaWiki 1.21wmf7 and 1.21wmf8 were deployed in January on a modified schedule, due to holidays and because of the data center migration. Deployments have returned to their usual fortnightly schedule.
Deployments of 1.21wmf9 and 1.21wmf10 went to production as scheduled with mininal issue.
The 1.21 deployment cycle to Wikimedia wikis is complete, and the MediaWiki 1.21 tarball is being prepared for release, with a target release date of May 15. Mark Hershberger recently released MediaWiki 1.21rc4.
MediaWiki 1.21.0 was released, followed by a MediaWiki 1.21.1 maintenance release.
No new releases were made for 1.21 in June of 2013.