Deployments

Some notes about the deployment windows

• It is good to ask for a little more time than what you think you'll need to do all of the deployment and testing; you never know what issues will come up and slow you down.
  • Generally, we have found one hour windows to be a good size for most things.
• Deployment windows are 'pinned' to the time in San Francisco and thus the UTC time will change due to the United States observance of Daylight Savings Time as appropriate.
• SWAT deploys happen twice daily (8am and 4pm Pacific) and are for pushing out simple, quick, and low risk changes (as assessed by you, members of the SWAT team, and the Release Manager).

For detailed instructions on how to actually deploy code to the Wikimedia servers, see How to deploy code.

This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia project wikis (Wikipedias, Wiktionaries, Wikiversities, Wikimedia Commons, etc.).

Cadence

The Wikimedia Foundation currently follows a one-week deploy cadence. This means that there is one week between updates to any one Wikimedia project site wiki (excluding urgent fixes, of course).

Scheduling

To schedule a deploy window, or if you see a potential conflict with your upcoming deployment, please e-mail Greg Grossmeier.

Inclusion criteria

See the list at Inclusion criteria for the kinds of changes that require scheduling here.

Communicating

• Every major or new feature deployment should be announced on the Wikimedia blog and/or Tech News (use the "user-notice" tag on Phabricator) and/or global on-wiki delivery. For routine and maintenance deployments, listing your change here is enough.
• Changes that are liable to affect site performance or infrastructure should be announced on the ops mailing list. This includes anything that alters caching behavior, introduces cookies, substantially increases the static asset payload, or adds new and complicated query patterns.

Near-term

Week of August 10th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, August 10
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	kart_ and/or amire80 [wmf17] 230381 (deploy commands) Enable scrubWikitext=1 in HTML to wikitext conversion using parsoid Requesting developer (irc handle) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	James_F [config] 228040 (deploy commands) and 228041 (deploy commands) Enable VisualEditor on NS_PROJECT for meta task T107003 [wmf17] 230656 (deploy commands) TimedMediaHandler: Fix regression in iframe embedding for MediaWiki core updates task T108359 Erik B (ebernhardson) [config} 229424 (deploy commands) Limit number of states generated by a wildcard search Requesting developer (irc handle) Gerrit link to backport or config change
Tuesday, August 11
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
16:00–19:00 UTC # 09:00–12:00 PDT	Logstash cluster updates	bd808	Upgrade to Logstash 1.5.3 and Elasticsearch 1.7.1 task T99735 226991 (deploy commands) 227175 (deploy commands) task T108040
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf17->1.26wmf18 group1 1.26wmf17 group2 1.26wmf17 group0 to 1.26wmf18: test wikis and mediawiki.org
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change Alex (Krenair) [config] 230804 (deploy commands) Set wgNamespaceRobotPolicies on itwiki's NS_USER to noindex,follow [config] 230805 (deploy commands) Allow ptwiki bureaucrats to remove sysop+bureaucrat rights matt_flaschen 230929 (deploy commands) [wmf18] [Flow] Eliminate some memory leaks affecting LQT->Flow:
Wednesday, August 12
12:00–13:00 UTC # 05:00–06:00 PDT	Wikidata	aude	* enable arbitrary access for s3 wikis [1] + frwiki + jawiki + dewiki - August 12 phab:T100786 and phab:T100787 deploy Wikisource / Wikidata badges config patch. 229062 (deploy commands)
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Special deploy window from Greg	jdlrobson, kaldari, codezee	* Deploying WikidataPageBanner to English Wikivoyage https://phabricator.wikimedia.org/T98029 (@kaldari, @jdlrobson)
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf18 group1 1.26wmf17->1.26wmf18 group2 1.26wmf17 group1 to 1.26wmf18 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	* legoktm 230247 (deploy commands) Isolate wikidata.org cookies and CORS policies Requesting developer (irc handle) Gerrit link to backport or config change
Thursday, August 13
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Kartik Mistry (kart_) [wmf17] 231229 (deploy commands) Images: validate image id before adapting to prevent js error [wmf18] 231230 (deploy commands) Images: validate image id before adapting to prevent js error Requesting developer (irc handle) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Special deploy window	jdlrobson, kaldari, codezee	* Retry deploying WikidataPageBanner to English Wikivoyage https://phabricator.wikimedia.org/T98029 (@kaldari, @jdlrobson)
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf18 group1 1.26wmf18 group2 1.26wmf17->1.26wmf18 group2 to 1.26wmf18 All Wikipedias
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	James_F [config] 227330 (deploy commands) Enable VisualEditor for 25% of new accounts on enwiki matt_flaschen [1.26wmf18]] 231450 (deploy commands) [Flow] Change how memcache.local_buffered/buffered are handled Alex (Krenair) [config] 228477 (deploy commands) Logo on mr.wikibooks [config] 231074 (deploy commands) Set site name for mr.wikibooks Requesting developer (irc handle) Gerrit link to backport or config change

Week of August 17th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, August 17
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
Tuesday, August 18
12:00–13:00 UTC # 05:00–06:00 PDT	Wikidata	aude	* enable arbitrary access for enwiki + s2 wikis (bgwiki, eowiki, fiwiki, idwiki, nowiki, plwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki) - August 18 phab:T100788
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	mailman planned maintenance (downtime)	RobH (robh)	Rename usergroups@ to usergroup-applications@ (slaporte) task TT108099 Education coop mailing list rename (Selsharbaty-WMF) task T107445 Rename Advocacy_Advisors@ to publicpolicy@ (slaporte) task TT109142
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf18->1.26wmf19 group1 1.26wmf18 group2 1.26wmf18 group0 to 1.26wmf19: test wikis and mediawiki.org
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
Wednesday, August 19
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf19 group1 1.26wmf18->1.26wmf19 group2 1.26wmf18 group1 to 1.26wmf19 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
21:00–22:00 UTC # 14:00–15:00 PDT	Labs network upgrades	Andrew (andrewbogott), Chase (chasemp)	Labs network host moved from labnet1001 to labnet1002; possible labs network interruptions.
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
Thursday, August 20
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	James_F [config] 231464 (deploy commands) Enable VisualEditor for 50% of new accounts on enwiki Requesting developer (irc handle) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf19 group1 1.26wmf19 group2 1.26wmf18->1.26wmf19 group2 to 1.26wmf19 All Wikipedias
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change

Upcoming

See the Phabricator Roadmap workboard for details on many upcoming plans.

Long term callouts

August

• No Date: Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649

September

• No date yet: 231465 (deploy commands) Enable VisualEditor for all new accounts on enwiki task T90664
• September 15: revert phabricator:rOMWC9f1f2e563a79037908a6b6e433b7d9495152a5c0
• No Date: Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663

Not scheduled yet

• Enable Wikibase usage tracking + arbitrary access, in staged roll out to clients. phab:T49930
  • deploy to commons, as well as Wikibooks and Wikinews when they get data access.

Deployment trains

• mw:MediaWiki 1.26/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.