MediaWiki 1.35/Roadmap

Group:	Release Engineering
Start:	2019-10-01
End:	2020-07-16

Timeline

Wikimedia deployments of MediaWiki 1.35 alpha versions will happen on weekly intervals, within a longer stretch (approximately 6 months) between publishing releases of the installer for third-party users.

Current status: Done

Schedule for the deployments

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

Phase	Date	Wikis
1.35.0-wmf.41
group 2 Done	16 July 2020	All Wikipedias
group 1 Done	15 July 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	14 July 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.40
group 2 Done	9 July 2020	All Wikipedias
group 1 Done	8 July 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	7 July 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.39
group 2 Done Deployed on Wednesday, 1 July due to US Independence Day	2 July 2020	All Wikipedias
group 1 Done	1 July 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Rolled out and back, then out once again on the same day.	30 June 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.38
group 2 Done	25 June 2020	All Wikipedias
group 1 Done Rolled out and back, then out once again on the same day.	24 June 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	23 June 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.37
group 2 Done	18 June 2020	All Wikipedias
group 1 Done	17 June 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	16 June 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.36
group 2 Done	11 June 2020	All Wikipedias
group 1 Done	10 June 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	9 June 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.35
group 2 Done	4 June 2020	All Wikipedias
group 1 Done	3 June 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	2 June 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.34
group 2 Done	28 May 2020	All Wikipedias
group 1 Done Rolled out and immediately back on 2020-05-27; re-deployed on 2020-05-28.	27 May 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	26 May 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.32
group 2 Done Rolled out and immediately back on 2020-05-14; re-deployed on 2020-05-26.	14 May 2020	All Wikipedias
group 1 Done	13 May 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	12 May 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.31
group 2 Done Rolled out and immediately back on 2020-05-07; redeployed on 2020-05-11	7 May 2020	All Wikipedias
group 1 Done Deployed on schedule, then rolled back later on 2020-05-08; redeployed on 2020-05-11	6 May 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Deployed on schedule, then rolled back on 2020-05-08; redeployed on 2020-05-11	5 May 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.30
group 2 Done Deployed on schedule, then rolled back later on 2020-04-30; redeployed on 2020-05-04	30 April 2020	All Wikipedias
group 1 Done Deployed on schedule, then rolled back on 2020-04-30; redeployed on 2020-05-04	29 April 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	28 April 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.28
group 2 Done	16 April 2020	All Wikipedias
group 1 Done	15 April 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	14 April 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.27
group 2 Done	9 April 2020	All Wikipedias
group 1 Done	8 April 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	7 April 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.26
group 2 Done	2 April 2020	All Wikipedias
group 1 Done Rolled back on 2020-04-01, then re-deployed on 2020-04-02.	1 April 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	31 March 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.25
group 2 Done	26 March 2020	All Wikipedias
group 1 Done	25 March 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	24 March 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.24
group 2 Done	19 March 2020	All Wikipedias
group 1 Done	18 March 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	17 March 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.23
group 2 Done	12 March 2020	All Wikipedias
group 1 Done	11 March 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	10 March 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.22
group 2 Done	5 March 2020	All Wikipedias
group 1 Done	4 March 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	3 March 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.21
group 2 Done	27 February 2020	All Wikipedias
group 1 Done	26 February 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	25 February 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.20
group 2 Done	20 February 2020	All Wikipedias
group 1 Done	19 February 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	18 February 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.19
group 2 Done Rolled out and back immediately on 2020-02-13; re-deployed on 2020-02-18.	13 February 2020	All Wikipedias
group 1 Done	12 February 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	11 February 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.18
group 2 Done Rolled out and immediately back on 2020-02-06; re-deployed on 2020-02-09.	6 February 2020	All Wikipedias
group 1 Done Rolled back everywhere on 2020-02-07; re-deployed on 2020-02-10.	5 February 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Rolled back everywhere on 2020-02-07; re-deployed on 2020-02-10.	4 February 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.16
group 2 Done	23 January 2020	All Wikipedias
group 1 Done	22 January 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	21 January 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.15
group 2 Done	16 January 2020	All Wikipedias
group 1 Done	15 January 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	14 January 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.14
group 2 Done	9 January 2020	All Wikipedias
group 1 Done	8 January 2020	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	7 January 2020	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.11
group 2 Done	19 December 2019	All Wikipedias
group 1 Done	18 December 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	17 December 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.10
group 2 Done	12 December 2019	All Wikipedias
group 1 Done	11 December 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	10 December 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.8
group 2 Done Eventually deployed on 2019-12-09.	28 November 2019	All Wikipedias
group 1 Done Eventually deployed on 2019-12-09.	27 November 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	26 November 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.5
group 2 Done	7 November 2019	All Wikipedias
group 1 Done	6 November 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	5 November 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.4
group 2 Done	31 October 2019	All Wikipedias
group 1 Done	30 October 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done Done on Friday 2019-10-31	29 October 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.3
group 2 Done	24 October 2019	All Wikipedias
group 1 Done	23 October 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	22 October 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.2
group 2 Done Done on Monday 2019-10-21	17 October 2019	All Wikipedias
group 1 Done	16 October 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	15 October 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
1.35.0-wmf.1
group 2 Done	10 October 2019	All Wikipedias
group 1 Done	9 October 2019	Catalan Wikipedia, Hebrew Wikipedia, Italian Wikipedia, test2.wikipedia.org and all non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, Wikivoyage, Wikidata and a few other sites)
group 0 Done	8 October 2019	mediawiki.org; test.wikipedia.org; test.wikidata.org
Phase	Date	Wikis

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