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 November 9th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, November 09
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	bgerstile, bd808 Done [docroot] 250897 (deploy commands) task T111829 Add an apple-app-site-association file used to support iOS deep-linking Matt (matt_flaschen) Done [wmf.5] 251560 (deploy commands) Fix regression in Flow Done [config+script] 251677 (deploy commands) Enable Flow user opt-in Beta Feature on Wikidata task T116611 James_F Done [config] 251674 (deploy commands) Enable VisualEditor for draft namespace in fawiki task T118060 Done [wmf.5] 251972 (deploy commands) VisualEditor/WikiEditor integration fixes task T117968 task T117780 task T117769 Alex (Krenair) Done [config] 250454 (deploy commands) Add patroller group to sawiki
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	Done See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
23:00–00:00 UTC # 15:00–16:00 PST	mw:Discovery - CirrusSearch	Erik B (ebernhardson)	Done Testing CirrusSearch writes to labsearch cluster
Tuesday, November 10
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	bd808 Done [config] 252017 (deploy commands) task T116550 Monolog: Disable microsecond timestamps on all loggers Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	James_F Done [config] 250471 (deploy commands) Enable VisualEditor for 25% of new accounts on eswiki task T117410 Done [wmf.5] 252231 (deploy commands) Update VisualEditor to fix task T118152 Kartik Mistry (kart_) Done [wmf.5] 252172 (deploy commands) Fixed a bug that prevented suggestions from showing aude Done [config] 250000 (deploy commands) Exclude LiquidThread namespaces from Special:UnconnectedPages Done [config] 252204 (deploy commands) Switch change dispatcher subscriptionLookupMode to subscriptions only jzerebecki Done [Wikidata] 252227 (deploy commands) Don't try to load WikidataQualityExternalValidation in CI. (Not effecting production, only CI for wmf branch.) Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Chase (chasemp) RobH (robh)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.5->1.27.0-wmf.6 group1 1.27.0-wmf.5 group2 1.27.0-wmf.5 group0 to 1.27.0-wmf.6 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, November 11
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Dereckson [config] 250709 (deploy commands) Set import sources on en.wikiversity (T115938) [config] 252010 (deploy commands) Set throttle exception for University of Haifa wiki event (T118122) Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Erik B (ebernhardson) [wmf.6] 252347 (deploy commands) - restore search satisfaction schema [wmf.5] 252349 (deploy commands) - restore search satisfaction schema Jeff (jhobs) [config] 251133 (deploy commands) Enable first QuickSurvey on testwiki (T113443) Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.6 group1 1.27.0-wmf.5->1.27.0-wmf.6 group2 1.27.0-wmf.5 group1 to 1.27.0-wmf.6 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
Thursday, November 12
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
01:00–02:00 UTC # (Wed) 17:00–18:00 PST	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), or Mark (marktraceur)	Requesting Developer (irc-nickname) Gerrit link to backport or config change Bartosz Dziewoński (MatmaRex) [config] 248360 (deploy commands) Revert "Hardcode UploadWizard max upload size"
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Chase (chasemp) RobH (robh)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	www portals switchover	Giuseppe (_joe_), Max (MaxSem)
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.6 group1 1.27.0-wmf.6 group2 1.27.0-wmf.5->1.27.0-wmf.6 group2 to 1.27.0-wmf.6 All Wikipedias
Friday, November 13
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of November 16th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, November 16
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
Tuesday, November 17
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	James_F [config] 250472 (deploy commands) Enable VisualEditor for 50% of new accounts on eswiki task T117410 Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.6->1.27.0-wmf.7 group1 1.27.0-wmf.6 group2 1.27.0-wmf.6 group0 to 1.27.0-wmf.7 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, November 18
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.7 group1 1.27.0-wmf.6->1.27.0-wmf.7 group2 1.27.0-wmf.6 group1 to 1.27.0-wmf.7 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
Thursday, November 19
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
01:00–02:00 UTC # (Wed) 17:00–18:00 PST	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), or Mark (marktraceur)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.7 group1 1.27.0-wmf.7 group2 1.27.0-wmf.6->1.27.0-wmf.7 group2 to 1.27.0-wmf.7 All Wikipedias
Friday, November 20
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of November 23rd

• Week of Thanksgiving (US Holiday)
  • High Priority SWATs only on Mon/Tuesday (Wednesday is "Friday")
  • No MW train

By day

Time	Component	Deployer	Changes
Monday, November 23
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, November 24
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	James_F [config] 250473 (deploy commands) Enable VisualEditor for all new accounts on eswiki task T117410 Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, November 25
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming

Plan for December:

• No deploys first week of Dec (week of Nov 30th)
• No deploys last 2 weeks of Dec (16th - 27th)

• 1 December – James_F
  • [config] 250474 (deploy commands) Enable VisualEditor for all accounts on eswiki task T117410

Long term callouts

Not scheduled yet

• Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663
• No date: Clean up skin user preferences in user_properties table on Wikimedia wikis – phab:T54778, use WikimediaMaintenance's cleanupSkinPrefs
• No date: Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649
• Scrap VisualEditor providing its own edit tab, instead provide only one with switching, and memory of which editor the user used last – phab:T102398
• Enable Wikibase usage tracking + arbitrary access, in staged roll out to clients. phab:T49930
  • deploy to arbitrary access 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.