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 January 1st

• Week of:
  • Monday January 1st: NO DEPLOYS - Holiday

By day

Time	Component	Deployer	Changes
Tuesday, January 02
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Urbanecm [config] 400093 (deploy commands) Create rollbacker user group for ruwiktionary [config] 400409 (deploy commands) Add suppressredirect to autoreview/editor at ruwikt, depends on previous patch [config] 399805 (deploy commands) Switch Wikipedias from $wgLogoHD to direct using of a SVG - caused a lot of errors, see phab:T183919, reverted [config] 399806 (deploy commands) Update chrwiki logo; depends on previous patch - not deployed due to error in previous patch [config] 400096 (deploy commands) Enable mapframe on lvwiki [config] 400579 (deploy commands) Set 'watchcreations' preference to true by default on Commons MarcoAurelio (Hauskatze) [config] 399982 (deploy commands) New namespace aliases for eswiki (please run namespaceDupes.php afterwards) [config] 401081 (deploy commands) Set category collation to 'uca-es-u-kn' for eswiki (please run updateCollation.php afterwards)
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), Giuseppe (_joe_)	Tyler Cipriani (thcipriani) 399848 (deploy commands) Revert "l10nupdate: don't run over holidays" Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Pre new MediaWiki train sanity break		No deploys
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.12->1.31.0-wmf.15 group1 1.31.0-wmf.12 group2 1.31.0-wmf.12 group0 to 1.30.1-wmf.15 test wikis and mediawiki.org Blockers: task T180748
Wednesday, January 03
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Smalyshev [config] 399466 (deploy commands) Lower ElasticSearch refresh interval for Wikidata to 5s mooeypoo 401578 (deploy commands) and 401614 (deploy commands) RCFilters: Correct looking for items in namespace group + typo fix - for WMF12 (production) 401576 (deploy commands) and 401615 (deploy commands) RCFilters: Correct looking for items in namespace group + typo fix - for WMF15 (today's train) Bartosz (MatmaRex) [wmf.15] 401581 (deploy commands) [wmf.15] 401582 (deploy commands) [wmf.15] 401583 (deploy commands) Requesting Developer (irc-nickname) Gerrit link to backport or config change
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Urbanecm [config] 401590 (deploy commands) Enable wgKartographerStaticMapframe for lvwiki [config] 401519 (deploy commands) Move wiktionary HD logo to wiktionaries [config] 401593 (deploy commands) Update logo for chrwiki revi (revi) [config] 401160 (deploy commands) Add patrol to Image-reviewer on Commons [config] 401174 (deploy commands) Add Translation NS for kowikisource Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	Smalyshev [config] 401612 (deploy commands) Add configuration deboosting scientific articles Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.15 group1 1.31.0-wmf.12->1.31.0-wmf.15 group2 1.31.0-wmf.12 group1 to 1.31.0-wmf.15 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T180748
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, Mobileapps deployments
Thursday, January 04
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
01:00–02:00 UTC # (Wed) 17:00–18:00 PST	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof)	eddiegp [config] 397768 (deploy commands) Restrict sending mails to new users
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.15 group1 1.31.0-wmf.15 group2 1.31.0-wmf.12->1.31.0-wmf.15 group2 to 1.31.0-wmf.15 All Wikipedias Blockers: task T180748
Friday, January 05
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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

Week of January 8th

• Week of:
  • T178849: cormacparle will be running refreshFileHeaders.php on all wikis. This shouldn't block any other activity.

By day

Time	Component	Deployer	Changes
Monday, January 08
11:00–11:30 UTC # 03:00–03:30 PST	Wikimedia Portals Update	Jan Drewniak (jan_drewniak)	Weekly window for the portals page: https://www.wikipedia.org/
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
18:00–18:30 UTC # 10:00–10:30 PST	Wikidata Query Service weekly deploy	Guillaume (gehel)	TBD
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, Mobileapps deployments
22:00–00:00 UTC # 14:00–16:00 PST	Weekly Security deployment window	Darian (dapatrick), Brian (bawolff), Sam (Reedy)	Held deployment window for Security-team related deploys.
Tuesday, January 09
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
06:00–07:00 UTC # (Mon) 22:00–23:00 PST	s8 Migration	Manuel (marostegui), Jcrespo (jynus)	Migrate wikidatawiki to s8 task T177208
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Pre new MediaWiki train sanity break		No deploys
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.15->1.31.0-wmf.16 group1 1.31.0-wmf.15 group2 1.31.0-wmf.15 group0 to 1.30.1-wmf.16 test wikis and mediawiki.org Blockers: task T180749
Wednesday, January 10
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.16 group1 1.31.0-wmf.15->1.31.0-wmf.16 group2 1.31.0-wmf.15 group1 to 1.31.0-wmf.16 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T180749
21:00–22:00 UTC # 13:00–14:00 PST	Services – Parsoid / Citoid / Mobileapps / ORES / …	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1)	See mw:Parsoid/Deployments, Mobileapps deployments
Thursday, January 11
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
01:00–02:00 UTC # (Wed) 17:00–18:00 PST	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
14:00–15:00 UTC # 06:00–07:00 PST	European Mid-day SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Filippo (godog), Moritz (moritzm), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Chad (no_justification)	1.31 schedule group0 1.31.0-wmf.16 group1 1.31.0-wmf.16 group2 1.31.0-wmf.15->1.31.0-wmf.16 group2 to 1.31.0-wmf.16 All Wikipedias Blockers: task T180749
Friday, January 12
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	addshore, Antoine (hashar), Brad (anomie), Chad (no_justification), 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

• 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