MediaWiki 1.21/Roadmap/status

Last update on: 2013-06-monthly

2012-10-10

1.21wmf1 deployed to all WMF wikis

2012-10-18

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.)

2012-10-20

We've deployed MediaWiki 1.21wmf2 to all the Phase I wikis, and will deploy to English Wikipedia on Monday, October 22nd.

2012-10-24

1.21wmf2 deployed to all WMF wikis

2012-10-26

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.

2012-10-monthly

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).

2012-11-07

1.21wmf3 deployed to all WMF wikis

2012-11-21

1.21wmf4 deployed to all WMF wikis

2012-11-28

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.

2012-11-30

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.

2012-11-monthly

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.

2012-12-monthly

We continued the bi-weekly deployment cycle, deploying MediaWiki 1.21wmf5 and 1.21wmf6. We stopped deployments at the end of the month due to the holidays, restarting the 1.21wmf7 cycle on January 2.

2013-01-monthly

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.

2013-02-monthly

Deployments of 1.21wmf9 and 1.21wmf10 went to production as scheduled with mininal issue.

2013-03-monthly

1.21wmf11 and 1.21wmf12 were deployed to Wikimedia sites in March. We created the REL1_21 branch on March 25, with the goal of a release candidate at the end of the month.

2013-04-monthly

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.

2013-05-monthly

MediaWiki 1.21.0 was released, followed by a MediaWiki 1.21.1 maintenance release.

2013-06-monthly

No new releases were made for 1.21 in June of 2013.