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 thrice daily (06:00, 11:00 and 16:00 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.

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 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 calendar being wrong.

Week of October 9th

• Week of:
  • task T174509: Removing duplicate indexes and optimizing pagelinks and templatelinks tables
  • task T177772: Purge 90% of rows from recentchanges (and posibly defragment) from commonswiki and ruwiki (the ones with source:wikidata)

By day

Time	Component	Deployer	Changes
Monday, October 09
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Amir Sarabadani (Amir1) [config] 382463 (deploy commands) Fix amwikimedia site name Bartosz (MatmaRex) [config] 382749 (deploy commands) Disallow most file types from upload to enwikivoyage David Causse (dcausse) [1.31.0-wmf.2] 383079 (deploy commands) Revert "[tech-debt] Remove usage of FuzzyLikeThis in favor of simple fuzzy match" Zoranzoki21 [config] 383119 (deploy commands) New throttle rule [config] 375765 (deploy commands) Whitelist Dvorapa on Zuul CI 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)	TBD
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	David Barratt (davidwbarratt) T173475 Echo Notification Mute (Block List) can be bypassed by changing username 374871 (deploy commands) & 382561 (deploy commands) Both patches got reverted. 383173 (deploy commands) applies them both. Jayprakash12345 [config] 382934 (deploy commands) Add autopatrolled user group to sd.wikipedia (T177141) [config] 382964 (deploy commands) Enable NewUserMessage for SUL accounts too on hi.wikiversity (T177690) [config] 382960 (deploy commands) Enable NewUserMessage for SUL accounts too on dty.wiki (T177688) Zoranzoki21 [config] 383150 (deploy commands) Revert "New throttle rule" Jdlrobson [config] 383170 (deploy commands) Enable new print styles on Vector Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / ORES / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
21:00–23:00 UTC # 14:00–16:00 PDT	Weekly Security deployment window	Darian (dapatrick), 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 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, October 10
08:00–13:00 UTC # 01:00–06:00 PDT	ores_classification table cleanup	Amir Sarabadani (Amir1)	Cleanup ores_classification table in wikidatawiki and some other wikis (phab:T159753)
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Lucas Werkmeister (Lucas_WMDE) [config] 383162 (deploy commands) Switch to new wbcheckconstraints API format (T175590) Done aude [config] 381371 (deploy commands) Remove/replace use of $wgWikibaseSharedCacheKeyPrefix setting (from wikidata build) N Not done [config] 382384 (deploy commands) Cleanup old Wikibase echo test wiki configs Done Zoranzoki21 [config] Enable SandboxLink on gawiki 383145 (deploy commands) Done Sébastien (Dereckson) [config] 383354 (deploy commands) Add XLDB2017 workshop throttle rule (task T177835) Done Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), 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 / OCG / Citoid / ORES	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.2->1.31.0-wmf.3 group1 1.31.0-wmf.2 group2 1.31.0-wmf.2 group0 to 1.30.1-wmf.3 test wikis and mediawiki.org Blockers: task T174359
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	eddiegp [config] 382024 (deploy commands) wikitech: Align contentadmin and sysop permissions Jdlrobson [config] 383390 (deploy commands) Enable Vector print logo on test wiki [1.31.0-wmf.2] 383391 (deploy commands) Don't request render if renderer not configured [config] 383210 (deploy commands) Disable OCG services
Wednesday, October 11
12:00–12:30 UTC # 05:00–05:30 PDT	Wikidata usage tracking	Marius Hoch (hoo)	Statement usage tracking for cawiki and cewiki (383439 (deploy commands), 383440 (deploy commands), T151717)
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Jayprakash12345 gehel [config] 382988 (deploy commands) Enable mapframe on eswiki Lucas Werkmeister (Lucas_WMDE) [config] 383163 (deploy commands) Enable constraint checks on qualifiers and references (T176863) Amir E. Aharoni (aharoni) (User:Amire80) [config] 366233 (deploy commands) Configure wmgBabelMainCategory for the Dinka Wikipedia [config] 364428 (deploy commands) Remove compact language links dblist for simplicity Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Amir Sarabadani (Amir1) [config] 383376 (deploy commands) labs: Add $wgWBRepoSettings['canonicalUriProperty'] [config] 381642 (deploy commands) Remove deprecated config variable for Wikibase Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.3 group1 1.31.0-wmf.2->1.31.0-wmf.3 group2 1.31.0-wmf.2 group1 to 1.31.0-wmf.3 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T174359
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / ORES / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, October 12
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
08:00–13:00 UTC # 01:00–06:00 PDT	ores_classification table cleanup	Amir Sarabadani (Amir1)	Cleanup ores_classification table in wikidatawiki and some other wikis (phab:T159753)
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), 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 / OCG / Citoid / ORES	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.3 group1 1.31.0-wmf.3 group2 1.31.0-wmf.2->1.31.0-wmf.3 group2 to 1.31.0-wmf.3 All Wikipedias Blockers: task T174359
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	MaxSem [config] 383473 (deploy commands) Finalize migration of test wikis to HTML5 links Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of October 16th

• Week of:
  • nothing yet...

By day

Time	Component	Deployer	Changes
Monday, October 16
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	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)	TBD
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / ORES / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
21:00–23:00 UTC # 14:00–16:00 PDT	Weekly Security deployment window	Darian (dapatrick), 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 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, October 17
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), 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 / OCG / Citoid / ORES	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.3->1.31.0-wmf.4 group1 1.31.0-wmf.3 group2 1.31.0-wmf.3 group0 to 1.30.1-wmf.4 test wikis and mediawiki.org Blockers: task T174360
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, October 18
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.4 group1 1.31.0-wmf.3->1.31.0-wmf.4 group2 1.31.0-wmf.3 group1 to 1.31.0-wmf.4 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T174360
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / ORES / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, October 19
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
13:00–14:00 UTC # 06:00–07:00 PDT	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), 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 / OCG / Citoid / ORES	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
18:00–19:00 UTC # 11:00–12:00 PDT	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.4 group1 1.31.0-wmf.4 group2 1.31.0-wmf.3->1.31.0-wmf.4 group2 to 1.31.0-wmf.4 All Wikipedias Blockers: task T174360
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming

• No MW train the week of Thanksgiving (Nov 20th), SWATs open for high priority things
• No deploys weeks of Dec 18th and 25th (last two weeks)
• Normal week week of Jan 1st (minus no deploys that Monday)
• The Dev Summit and WMF All Hands is the week of January 22nd, so that will be a "No Train but SWATs OK on Mon/Tues/Wed" week.
• The following week (week of January 29th) the Release Engineering team will be on an offsite, so a week of "No Train, but SWATs and service deploys OK".

Past deployments

• /Archive