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 July 20th

• Week of:
  • ...

By day

Time	Component	Deployer	Changes
Monday, July 20
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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, July 21
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	gilles Done [config] 225935 (deploy commands) Assign thumbnail access log to Monolog debug channel Done [config] 226051 (deploy commands) Offer 400px as a thumbnail size available in Special:Preferences Done [wmf14] 225936 (deploy commands) Backport thumbnail logging and stats changes Mjbmr N Not done [wmf/1.26wmf14] 225214 (deploy commands) Update Namespaces, SpecialPageAliases and MagicWords for South Azerbaijani (azb) (T106305) N Not done [wmf/1.26wmf14] 225828 (deploy commands) Add namespace aliases for South Azerbaijani (azb) (T106305) jzerebecki Done [wmf/1.26wmf14][wmf/1.26wmf13] 226021 (deploy commands) Add api featureLog for ungroupedlist param 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 1.26wmf14->1.26wmf15 group1 1.26wmf14 group2 1.26wmf14 Done group0 to 1.26wmf15: 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)	James_F Done [wmf14] 226217 (deploy commands) Fix VisualEditor's editing of links in Firefox task T106270 Done [wmf15] 226218 (deploy commands) Fix VisualEditor's editing of links in Firefox task T106270 MaxSem Done [config] 226224 (deploy commands) Enable geo feature usage tracking on enwiki legoktm Done [config] 225559 (deploy commands) Set $wgVectorResponsive = true on testwiki Requesting developer (irc handle) Gerrit link to backport or config change
Wednesday, July 22
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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 1.26wmf15 group1 1.26wmf14->1.26wmf15 group2 1.26wmf14 Done group1 to 1.26wmf15 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)	James_F Done [wmf15] 226339 (deploy commands) Add a new VisualEditor hook for config of new accounts before the next train Done [wmf15] 226340 (deploy commands) Add a new VisualEditor hook for config of auto-accounts before the next train gilles Done [config] 224393 (deploy commands) Re-enable thumbnail chaining with a single reference thumbnail jdlrobson N Already done earlier [wmf15] 226313 (deploy commands) Don't hook into desktop mode login page Alex (Krenair) Done [config] 118654 (deploy commands) Add namespace aliases for shwiki Done [config] 225409 (deploy commands) Use NewUserMessage on gomwiki Done [config] 225519 (deploy commands) Add rollbacker to arwikisource and autopatrolled+rollbacker to arwiktionary Done [config] 225717 (deploy commands) Revert "Only use the RSS proxy on foundationwiki" Done [config] 225722 (deploy commands) Stop meta bureaucrats from removing sysop or bureaucrat Done [config] 226336 (deploy commands) Support VisualEditor configuration for new/auto account enablement Done [config] 225541 (deploy commands) Remove old VE namespaces on testwiki and mediawikiwiki Requesting developer (irc handle) Gerrit link to backport or config change
Thursday, July 23
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)	Nik (manybubbles), Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Amir E. Aharoni (aharoni on IRC, Amire80 in Gerrit) [config] https://gerrit.wikimedia.org/r/#/c/225322/ - Localized site title for pnb.wikipedia [config] https://gerrit.wikimedia.org/r/#/c/224031/ - Set Spanish as the default ContentTranslation source language for English Wikipedia
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf15 group1 1.26wmf15 group2 1.26wmf14->1.26wmf15 group2 to 1.26wmf15 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

Week of July 27th

• Week of:
  • Upgrade/rolling restart of ElasticSearch - phab:T106090

By day

Time	Component	Deployer	Changes
Monday, July 27
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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, July 28
13:00–15:00 UTC # 06:00–08:00 PDT	Wikidata	aude	Usage tracking for enwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
16:00–18:00 UTC # 09:00–11:00 PDT	Wikidata	aude	Usage tracking for enwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki (continued deployment)
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour) or Greg (greg-g)	1.26 schedule group0 1.26wmf15->1.26wmf16 group1 1.26wmf15 group2 1.26wmf15 group0 to 1.26wmf16: 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, July 29
14:00–15:00 UTC # 07:00–08:00 PDT	Wikidata	aude	Arbitrary access for s3 wikis (part 1, aawiki - lvwiki) + frwiki + jawiki
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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 1.26wmf16 group1 1.26wmf15->1.26wmf16 group2 1.26wmf15 group1 to 1.26wmf16 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)	Requesting developer (irc handle) Gerrit link to backport or config change
Thursday, July 30
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)	Nik (manybubbles), 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 1.26wmf16 group1 1.26wmf16 group2 1.26wmf15->1.26wmf16 group2 to 1.26wmf16 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

July

• Enable Wikibase usage tracking + arbitrary access, in staged roll out to clients. phab:T49930
  • usage tracking for enwiki + s2 wikis (ptwiki, svwiki, thwiki, trwiki, zhwiki) - July 28 phab:T100785
  • arbitrary access for s3 wikis (part 1, aawiki - lvwiki) + frwiki + jawiki - July 29 phab:T100786 (note that gomwiki and lrcwiki already have arbitrary access)
• No Date: Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649
• No Date: Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663

August

• August 3: Revert gerrit:221646
• Enable Wikibase usage tracking + arbitrary access, in staged roll out to clients. phab:T49930
  • arbitrary access for s3 wikis (part 2, maiwiki - zuwiki) + dewiki - August 3 (?) phab:T100787
  • arbitrary access for enwiki + s2 wikis (bgwiki, eowiki, fiwiki, idwiki, nowiki, plwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki) - August 18 (?) phab:T100788

September

• September 15: revert phabricator:rOMWC9f1f2e563a79037908a6b6e433b7d9495152a5c0

Deployment trains

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

Recently completed

For older deployments, please see the /Archive.