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 February 8th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, February 08
11:00–12:00 UTC # 03:00–04:00 PST	Terbium maintenance	Moritz (moritzm)	Terbium reboot - mind your long-running scripts
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)	Addshore (Addshore) [config] 264734 (deploy commands) Set wgRCWatchCategoryMembership true everywhere except wikisource [config] 268467 (deploy commands) Add $wgWBRepoSettings['sparqlEndpoint'] aude [config] 268208 (deploy commands) Don't request pageprops for mobile search/nearby on Wikidata [config] 254645 (deploy commands) Use custom generator for mobile search on Wikidata Sébastien (Dereckson) [config] 268573 (deploy commands) Namespaces configuration on mai.wikipedia (task T125801) [config] 267997 (deploy commands) Enable signature button for the Project namespace in ru.wiki (task T125509) [config] 267822 (deploy commands) Deploy Translate extension on ru.wikimedia (task T121766) [config] 267820 (deploy commands) Set category collation on gd.wikipedia (task T125315)
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
22:30–23:30 UTC # 14:30–15:30 PST	Debug logging improvements	bd808	Code and config updates for debug logging Done 269083 (deploy commands) Add $wgVersion to MediaWiki\Logger\Monolog\WikiProcessor Done [config] 269063 (deploy commands) Monolog: normalize messages before PSR3 expansion Done [config] 269065 (deploy commands) Monolog: Add mwversion to udp2log log events Done [config] 269068 (deploy commands) logging: Send all udp2log eligible messages to $wmgDefaultMonologHandler Done [config] 269069 (deploy commands) logging: Collect mw1017 logs for debugging
Tuesday, February 09
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Alex (Krenair) [wmf.12] 269344 (deploy commands) Fix "Uncaught TypeError: $.cookie is not a function" Default extensions to not use the 'invisible icon' ve.init.mw.trackSubscriber: Sample at 6.25% Julien (jgirault), Jan (jan_drewniak) [config] 268849 (deploy commands) Bump portals to master (color standardization, CSS sprites, updated stats) Bartosz Dziewoński (MatmaRex) [wmf.12] 269140 (deploy commands) Revert "TableSorter: Avoid FOUC and preserve styling in VisualEditor" AaronSchulz [config] 266509 (deploy commands) Rationalize definition of service hosts James_F [wmf.12] 269293 (deploy commands) Sample MobileFrontend edit events at 6.25% Gergő (tgr) [wmf.12] 269333 (deploy commands) Handle error message in SpecialMWOAuthManageConsumers 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)	aude [config] 269398 (deploy commands) Enable math data type. [config] 269399 (deploy commands) Enable ArticlePlaceholder on test.wikipedia, test2 + test.wikidata Gergő (tgr) [wmf.12] 269424 (deploy commands) Clarify and expand messages mentioning "loss of session data" 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)	JCrespo (jynus), MMuehlenhoff (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.12->1.27.0-wmf.13 group1 1.27.0-wmf.12 group2 1.27.0-wmf.12 group0 to 1.27.0-wmf.13 test wikis and mediawiki.org Blockers: task T125596
23:00–00:00 UTC # 15:00–16:00 PST	s2 database master switch	Jaime (jynus)	Changing the master for the s2 shard because of: hardware maintenance OS upgrade and mariadb upgrade (5.5 -> 10)
Wednesday, February 10
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	jdlrobson [config] 269341 (deploy commands) Test HTML stripping in production mobile beta ebernhardson [config] 267200 (deploy commands) Reduce Kafka timeouts [config] 269568 (deploy commands) Increase replica count for completion suggester on busy wikis Sébastien (Dereckson) [config] 268879 (deploy commands) Enable CategoryMembershipChanges on fr.wiktionary (task T126051) [config] 268409 (deploy commands) Set nlwiki collation to uca-nl (task T125774) [config] 268630 (deploy commands) Add Recherche: to wgContentNamespaces on fr.wikiversity (task T125948) [config] 260541 (deploy commands) Set $wgPageLanguageUseDB = true for testwiki (task T69223, schema change testing required by jynus) [config] 266470 (deploy commands) Get rid of $wg = $wmg for BetaFeatures (task T119117)
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)	Kartik Mistry (kart_) [config] 269416 (deploy commands) CX: Enable specialcx campaign James_F [wmf.12] 269455 (deploy commands) [VisualEditor] ext.visualEditor.desktopArticleTarget.init: Depend on mediawiki.user too [wmf.13] 269456 (deploy commands) [VisualEditor] ext.visualEditor.desktopArticleTarget.init: Depend on mediawiki.user too [wmf.13] 269575 (deploy commands) [Cite] VE: Fix i18n names broken during migration Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.13 group1 1.27.0-wmf.12->1.27.0-wmf.13 group2 1.27.0-wmf.12 group1 to 1.27.0-wmf.13 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T125596
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, February 11
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	CSteipp (csteipp) [config] 259439 (deploy commands) Set steward password policy 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), Mark (marktraceur), or Alex (Krenair)	Addshore (Addshore) [config] 264735 (deploy commands) Set wgRCWatchCategoryMembership true on wikisource
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	JCrespo (jynus), MMuehlenhoff (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.13 group1 1.27.0-wmf.13 group2 1.27.0-wmf.12->1.27.0-wmf.13 group2 to 1.27.0-wmf.13 All Wikipedias Blockers: task T125596
22:00–23:00 UTC # 14:00–15:00 PST	Adyghe Wikipedia creation	Alex (Krenair)	On terbium, run mwscript extensions/WikimediaMaintenance/addWiki.php --wiki=aawiki ady wikipedia adywiki ady.wikipedia.org 268004 (deploy commands) - make wikiversions rebase, merge On mira: Pull, merge change Run sync-dir dblists; sync-wikiversions; sync-file langlist; sync-file wmf-config/InitialiseSettings.php; sync-file w/static/images/project-logos/adywiki.png Run mwscript extensions/WikimediaMaintenance/filebackend/setZoneAccess.php adywiki --backend=local-multiwrite Run updateinterwikicache
Friday, February 12
00:00–01:00 UTC # (Thu) 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

Week of February 15th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, February 15
00:00–23:00 UTC # (Sun) 16:00–15:00 PST	US Holiday	Everyone	US Holiday - No deploys
Tuesday, February 16
11:00–12:00 UTC # 03:00–04:00 PST	Capiunto (testwiki test2wiki and testwikidata)	Marius (hoo)	Initial production (test wiki) deploy of Capiunto (T126399).
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
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Giuseppe (_joe_), Emanuele (ema)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.13->1.27.0-wmf.14 group1 1.27.0-wmf.13 group2 1.27.0-wmf.13 group0 to 1.27.0-wmf.14 test wikis and mediawiki.org Blockers: task T125597
Wednesday, February 17
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
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.14 group1 1.27.0-wmf.13->1.27.0-wmf.14 group2 1.27.0-wmf.13 group1 to 1.27.0-wmf.14 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T125597
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, February 18
00:00–01:00 UTC # (Wed) 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
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), Mark (marktraceur), or Alex (Krenair)	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)	Moritz (moritzm), mutante (mutante)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.14 group1 1.27.0-wmf.14 group2 1.27.0-wmf.13->1.27.0-wmf.14 group2 to 1.27.0-wmf.14 All Wikipedias Blockers: task T125597
Friday, February 19
00:00–01:00 UTC # (Thu) 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

Long term callouts

Wikidata-related (exact times to be scheduled, and some of these could be in swat):

• Enable ArticlePlaceholder extension on test.wikipedia, test2 + testwikidata (February 9)
• Formula data type, enable on test.wikidata (February 2), and on Wikidata (February 9)
• Other projects sidebar (February 16)
• Enable external identifier data type (February 16)
• Enable Wikibase Client on Wikiversity (February 23)

Not scheduled yet

• Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663
• Clean up skin user preferences in user_properties table on Wikimedia wikis – phab:T54778, use WikimediaMaintenance's cleanupSkinPrefs
• 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 arbitrary access on commons. phab:T49930

Deployment trains

• mw:MediaWiki 1.27/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.