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 January 18th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, January 18
08:00–07:00 UTC # 00:00–23:00 PST	US Holiday	Everyone	No deploys - US Holiday
Tuesday, January 19
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)	Bartosz Dziewoński (MatmaRex) [wmf.10] 264695 (deploy commands) [UploadWizard] Revert "Define required 'defaults' field in licensing config" yurik [wmf.10] 264715 (deploy commands) [Graph] Fixed graph reset on click Kartik Mistry (kart_) [config] 264469 (deploy commands) Add missing entry to disable file upload on guwiki Brad (anomie) [config] 264437 (deploy commands) Centralize and add rights and grants in preparation for grants moving into core 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)	Alex (akosiaris), mutante (mutante)	Alex (Krenair) 244237 (deploy commands) Begin to merge production and beta apache config, starting with nonexistent.conf
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.10->1.27.0-wmf.11 group1 1.27.0-wmf.10 group2 1.27.0-wmf.10 group0 to 1.27.0-wmf.11 test wikis and mediawiki.org
Wednesday, January 20
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Erik B (ebernhardson) [wmf10] 264989 (deploy commands) Fix avro serialization errors in CirrusSearch logging [wmf10] 265146 (deploy commands) Specify queryType for all queries that uses ElasticsearchIntermediary::start Roan (RoanKattouw) [config] 264260 (deploy commands) Add wgScriptPath to InitialiseSettings [config] 264920 (deploy commands) Add cross-wiki notifications beta feature to whitelist [config] 264917 (deploy commands) Enable cross-wiki notifications beta feature on testwiki and test2wiki Kaldari 264961 (deploy commands) Disable active user gadget stats on testwiki (in preparation for enwiki) bd808 264973 (deploy commands) task T123821 MobileFrontend backport: Set the wiki page on the derivative request urandom 265142 (deploy commands) task T116786 Enable EventBus extension.
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)	Dereckson [config] 265165 (deploy commands) Add *.bodleian.ox.ac.uk to wgCopyUploadsDomains (task T121779) [config] 265163 (deploy commands) Add *.archives.gov to wgCopyUploadsDomains (task T124080) [config] 259003 (deploy commands), 265286 (deploy commands) Add davidabian.com to wgCopyUploadsDomains (task T121383) Kaldari [config] 265185 (deploy commands) Disable active user gadget stats on enwiki yurik [config] 265282 (deploy commands) Change default graph vega version to 2
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.11 group1 1.27.0-wmf.10->1.27.0-wmf.11 group2 1.27.0-wmf.10 group1 to 1.27.0-wmf.11 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias N Not done - see task T124252
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, January 21
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	urandom 265142 (deploy commands) task T116786 Enable EventBus extension on test wikis. Roan (RoanKattouw) 265395 (deploy commands) Enable Echo cross-wiki table on all wikis Requesting Developer (irc-nickname) Gerrit link to backport or config change MaxSem 265409 (deploy commands) GeoData logging
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] 264732 (deploy commands) Set wgRCWatchCategoryMembership true on dewiki Michael H (mdholloway) 265117 (deploy commands) 265118 (deploy commands) Roll out RESTBase usage to Android Beta app: 100%
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	akosiaris (akosiaris), mutante (mutante)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.11 group1 1.27.0-wmf.11 group2 1.27.0-wmf.10->1.27.0-wmf.11 group2 to 1.27.0-wmf.11 All Wikipedias
Friday, January 22
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 January 25th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, January 25
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] 264765 (deploy commands) Enable VisualEditor by default for some other wikis task T116523 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, January 26
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)	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)
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.11->1.27.0-wmf.12 group1 1.27.0-wmf.11 group2 1.27.0-wmf.11 group0 to 1.27.0-wmf.12 test wikis and mediawiki.org Please take this comment about a special deployment of a change in EventLogging into account.
Wednesday, January 27
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	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.12 group1 1.27.0-wmf.11->1.27.0-wmf.12 group2 1.27.0-wmf.11 group1 to 1.27.0-wmf.12 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Please take this comment about a special deployment of a change in EventLogging into account.
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, January 28
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)	Addshore (Addshore) [config] 264733 (deploy commands) Set wgRCWatchCategoryMembership true on wikipedias & commons
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
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.12 group1 1.27.0-wmf.12 group2 1.27.0-wmf.11->1.27.0-wmf.12 group2 to 1.27.0-wmf.12 All Wikipedias
Friday, January 29
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

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 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 1.27/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.