Deployments

Notes:

• Ask for a little more time than what you think you'll need for deployment and testing; you never know what issues may come up and slow you down.
  • Generally, we have found one hour 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 are for pushing out simple and low-risk changes (as assessed by you, SWAT team, and the Release Manager). They happen at:
  • 06:00, 11:00 and 16:00 Pacific on Mondays and Thursdays
  • 06:00 and 16:00 Pacific on Tuesdays
  • 06:00, 10:00 and 16:00 Pacific on Wednesdays

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

Deployments
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This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia projects (Wikipedia, Wiktionary, Wikiversity, 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.

Long running tasks/scripts

While not strictly a deployment, performing long running (>1 hour) tasks (eg: migration scripts) can encounter issues when code is updated while a script is being run. For this reason it is required to add an entry in the calendar for the task with a window that accounts for the anticipated start time and estimated length for the task.

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.

Something went wrong‽ (see also Incident response)

• Is there a user-impacting or other severe issue?
  • Communicate this in the #wikimedia-operations ^connect IRC channel.
  • Add the #wikimedia-incident project to any relevant Phabricator task; if appropriate set to UBN! priority.
• What happens next?
  • In case of halting or reverting the weekly train

Near-term

NOTE: You can also subscribe to the "WMF Deployments" google calendar by adding <wikimedia.org_rudis09ii2mm5fk4hgdjeh1u64@group.calendar.google.com>. This does not always get one-off windows that are noted below. This wiki page is the canonical deployment schedule and any differences with the google calendar are to be interpreted as the google calendar being incorrect.

Week of June 24th

• Week of:

By day

Time	Component	Deployer	Changes
Monday, June 24
10:30–11:00 UTC # 03:30–04:00 PDT	Wikimedia Portals Update	Jan Drewniak (jan_drewniak)	Weekly window for the portals page: https://www.wikipedia.org/
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	bmansurov [config] 518186 (deploy commands) Labs: enable QuickSurveys on hewiki Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–17:30 UTC # 10:00–10:30 PDT	Wikidata Query Service weekly deploy	Guillaume (gehel), Mathew (onimisionipe)	Deploy WDQS update for Blazegraph, GUI & Updater
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Urbanecm [config] 518278 (deploy commands) Add hualab.nl to $wgCopyUploadsDomains [config] 518171 (deploy commands) Add "mass-upload" to autopatrollers and patrollers on commons [config] 518014 (deploy commands) Fix wgMetaNamespaceTalk for aswikisource Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–20:00 UTC # 12:00–13:00 PDT	Gerrit Upgrade	thcipriani, paladox	2.15.14 task T225369
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak))	See mw:Parsoid/Deployments, Mobileapps deployments
21:00–23:00 UTC # 14:00–16:00 PDT	Weekly Security deployment window	Brian (bawolff), Sam (Reedy)	Held deployment window for Security-team related deploys.
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Christoph Jauera (CFisch_WMDE) [wmf.8] 518756 (deploy commands) Enforce a GET request when the "remember" user setting doesn't change Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, June 25
05:00–09:00 UTC # (Mon) 22:00–02:00 PDT	Change parsercache key	marostegui	T210725
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Gergő (tgr) 518209 (deploy commands) Add permissive CORS headers for wikimedia.org/.well-known/matrix Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak))	See Graphoid, mw:Parsoid/Deployments
18:00–19:00 UTC # 11:00–12:00 PDT	Pre MediaWiki train sanity break		No deploys
19:00–20:00 UTC # 12:00–13:00 PDT	MediaWiki train - American version	Jeena (longma)	1.34 schedule group0 1.34.0-wmf.10->1.34.0-wmf.11 group1 1.34.0-wmf.10 group2 1.34.0-wmf.8 group0 to 1.34.0-wmf.11 Blockers: task T220735
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Zoranzoki21 518390 (deploy commands) Change name of Serbian Wikinews (part 1) 518391 (deploy commands) Change name of Serbian Wikinews in InitialiseSettings.php (part 2) (if possible - CirrusSearch) 518392 (deploy commands) Change name of Serbian Wikinews (part 3) Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, June 26
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Martin (Urbanecm)	Alaa Sarhan (alaa_wmde) [config] 517674 (deploy commands) Switch property terms migration to WRITE_BOTH on wikidata production bmansurov [config] 519167 (deploy commands) Enable reader demographics surveys dcausse [1.34.0-wmf.11] 519161 (deploy commands) Convert array params to string when logging requests [config] 513982 (deploy commands) [cirrus] remove unused wgCirrusSearchRequestEventSampling [config] 512195 (deploy commands) [cirrus] Enable UTR30 as a lookup method for ns prefixes on group0 (optional, can be rescheduled if more important patches are to be deployed) Amir Sarabadani (Amir1) [config] 518952 (deploy commands) Set EntityUsageTable addUsage batch size to 100 Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Morning SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Urbanecm [config] 518390 (deploy commands) Change name of Serbian Wikinews (part 1) [config] 518391 (deploy commands) Change name of Serbian Wikinews in InitialiseSettings.php (part 2) Kosta Harlan (kostajh) [config] 518779 (deploy commands) GrowthExperiments: Enable mobile homepage for cswiki and kowiki Gergő (tgr) [config] 519243 (deploy commands) Enable sending JS errors to EventGate Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 11:00–12:00 PDT	Pre MediaWiki train sanity break		No deploys
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train - American version	Jeena (longma)	1.34 schedule group0 1.34.0-wmf.11 group1 1.34.0-wmf.10->1.34.0-wmf.11 group2 1.34.0-wmf.8 group1 to 1.34.0-wmf.11 Blockers: task T220735
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak))	See mw:Parsoid/Deployments, Mobileapps deployments
21:00–22:00 UTC # 14:00–15:00 PDT	Structured Data on Commons	Matthias (matthiasmullie), Cormac (cormacparle__)	Enable 'other statements' on testcommons
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, June 27
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Alaa Sarhan (alaa_wmde) [config] 519211 (deploy commands) Switch property terms migration to WRITE_NEW in test wikidata N Not done Alaa wasn't around [config] 519212 (deploy commands) Switch property terms migration to WRITE_NEW in production wikidata (if previous one is okay) N Not done Alaa wasn't around Urbanecm [config] 519257 (deploy commands) Set default aliases for Project_talk namespace N Not done Urbanecm wasn't around revi [config] 519367 (deploy commands) Add Portal Namespace to VisualEditor option on kowiki Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak))	See Graphoid, mw:Parsoid/Deployments
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Urbanecm [config] 519257 (deploy commands) Set default aliases for Project_talk namespace [config] 516623 (deploy commands) Restrict uploading on wikimaniawiki Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train - American version	Jeena (longma)	1.34 schedule group0 1.34.0-wmf.11 group1 1.34.0-wmf.11 group2 1.34.0-wmf.10->1.34.0-wmf.11 group2 to 1.34.0-wmf.11 Blockers: task T220736
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Amir Sarabadani (Amir1) [wmf.11] 519492 (deploy commands) Avoid inserting a new addUsage job when the current usage stays untouched RoanKattouw [wmf.11] 519546 (deploy commands) Fix JS error on Special:Homepage Requesting Developer (irc-nickname) Gerrit link to backport or config change
Friday, June 28
00:00–00:00 UTC # (Thu) 17:00–17:00 PDT	NO DEPLOYS	Everyone	Friday

Week of July 1st

• Week of:

By day

Time	Component	Deployer	Changes
Monday, July 01
10:30–11:00 UTC # 03:30–04:00 PDT	Wikimedia Portals Update	Jan Drewniak (jan_drewniak)	Weekly window for the portals page: https://www.wikipedia.org/
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	MarcoAurelio (hauskatze) [config] 518715 (deploy commands) Close wikimania2018wiki (T201188) Kartik Mistry (kart_) [config] 518260 (deploy commands) Don't show cannot publish error to 'sysop' users (T225398) Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–17:30 UTC # 10:00–10:30 PDT	Wikidata Query Service weekly deploy	Guillaume (gehel), Mathew (onimisionipe)	Deploy WDQS update for Blazegraph, GUI & Updater
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	RoanKattouw [config] 519080 (deploy commands) Enable homepage on viwiki [config] 519081 (deploy commands) Enable homepage for new users on viwiki Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak))	See mw:Parsoid/Deployments, Mobileapps deployments
21:00–23:00 UTC # 14:00–16:00 PDT	Weekly Security deployment window	Brian (bawolff), Sam (Reedy)	Held deployment window for Security-team related deploys.
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, July 02
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak))	See Graphoid, mw:Parsoid/Deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, July 03
06:00–06:30 UTC # (Tue) 23:00–23:30 PDT	x1 database master failover	marostegui, jynus	T226358
11:00–12:00 UTC # 04:00–05:00 PDT	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Morning SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak))	See mw:Parsoid/Deployments, Mobileapps deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 6 patches)	Max (MaxSem), Roan (RoanKattouw), or Niharika (Niharika)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, July 04
00:00–00:00 UTC # (Wed) 17:00–17:00 PDT	NO DEPLOYS	Everyone	Foundation holiday
Friday, July 05
00:00–00:00 UTC # (Thu) 17:00–17:00 PDT	NO DEPLOYS	Everyone	Friday

Upcoming

• /Template
• Week of July 1st: No deploys (US Holiday, July 4th)
• Week of August 12th: No deploys (Wikimania)

Past deployments

• /Archive