MediaWiki 1.27/Roadmap

Group:	Wikimedia Technology
Start:	2015-09-29
End:	2016-05-05
Team members:	Release Engineering
Lead:	User:Chad (WMF)

Timeline

Wikimedia deployments of MediaWiki 1.27 versions happen on weekly intervals, within a longer stretch (approximately 6 months) between publishing releases of the installer for third-party users. Read more.

Current status: Done

Schedule for the deployments

See wikitech:Deployments for current schedule, dates, and times. Below is a summary.

Phase	Date	Wikis
1.27.0-wmf.23
group 2 Done Reverted due to performance issues, re-deployed at Monday, 09 May 2016.	5 May 2016	All Wikipedias
group 1 Done	4 May 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	3 May 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.22
group 2 Done	28 April 2016	All Wikipedias
group 1 Done	27 April 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	26 April 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.21
group 2 Done	14 April 2016	All Wikipedias
group 1 Done	13 April 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	12 April 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.20
group 2 Done	7 April 2016	All Wikipedias
group 1 Done	6 April 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	5 April 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.19
group 2 Done	31 March 2016	All Wikipedias
group 1 Done	30 March 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	29 March 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.18
group 2 Done	24 March 2016	All Wikipedias
group 1 Done	23 March 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	22 March 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.17
group 2 Done	17 March 2016	All Wikipedias
group 1 Done	16 March 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	15 March 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.16
group 2 Done	10 March 2016	All Wikipedias
group 1 Done	9 March 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	8 March 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.15
group 2 Done	3 March 2016	All Wikipedias
group 1 Done	2 March 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	1 March 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.14
group 2 Done Not deployed due to latency regression, see task T126700, deployed at Thursday, 25 February 2016.	18 February 2016	All Wikipedias
group 1 Done Not deployed due to latency regression, see task T126700, deployed at Wednesday, 24 February 2016.	17 February 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Not deployed due to latency regression, see task T126700, deployed at Wednesday, 24 February 2016.	16 February 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.13
group 2 Done	11 February 2016	All Wikipedias
group 1 Done	10 February 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	9 February 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.12
group 2 Done	4 February 2016	All Wikipedias
group 1 Done	3 February 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Delayed due to staging issues, see task T125506, deployed at Wednesday, 03 February 2016.	2 February 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.11
group 2 N Not done Reverted due to login problems, see task T124252; re-deployed at Tuesday, 26 January 2016. Again reverted due to on-going problems with SessionManager, no re-deployment, version skipped.	28 January 2016	All Wikipedias
group 1 N Not done Reverted due to login problems, see task T124252; re-deployment scheduled for Wednesday, 27 January 2016. Again reverted due to on-going problems with SessionManager, no re-deployment, version skipped.	27 January 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 N Not done Reverted due to login problems, see task T124252; re-deployed at Tuesday, 26 January 2016. Again reverted due to on-going problems with SessionManager, no re-deployment, version skipped.	26 January 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.10
group 2 Done	14 January 2016	All Wikipedias
group 1 Done	13 January 2016	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	12 January 2016	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.9
group 2 Done	17 December 2015	All Wikipedias
group 1 Done	16 December 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	15 December 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.8
group 2 Done	10 December 2015	All Wikipedias
group 1 Done	9 December 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	8 December 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.7
group 2 Done	19 November 2015	All Wikipedias
group 1 Done	18 November 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	17 November 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.6
group 2 Done	12 November 2015	All Wikipedias
group 1 Done	11 November 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	10 November 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.5
group 2 Done	5 November 2015	All Wikipedias
group 1 Done	4 November 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	3 November 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.4
group 2 Done	29 October 2015	All Wikipedias
group 1 Done	28 October 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	27 October 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.3
group 2 Done Canceled due to Outages (click for more infos), re-deployed at October 22.	15 October 2015	All Wikipedias
group 1 Done Canceled due to Outages (click for more infos), re-deployed at October 21.	14 October 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	13 October 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.2
group 2 Done	8 October 2015	All Wikipedias
group 1 Done	7 October 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Reverted due to a File backend exception, and re-deployed at 6 October.	6 October 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.27.0-wmf.1
group 2 Done	1 October 2015	All Wikipedias
group 1 Done	30 September 2015	All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	29 September 2015	mediawiki.org; test.wikipedia.org; test.wikidata.org
Phase	Date	Wikis