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 November 16th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, November 16
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)	Baha (bmansurov) [config] 253038 (deploy commands) Disable first QuickSurvey on testwiki (T118525) Brandon Black (bblack) [config] 249121 (deploy commands) wgHTCPRouting: use separate address for upload (T116752) 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, November 17
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Krinkle [config] 253063 (deploy commands) fix wrong IP for codfw redis server Legoktm [config] 252399 (deploy commands) REL1_26 knocks on the door
15:00–16:00 UTC # 07:00–08:00 PST	CI	Antoine Musso (hashar), Andrew Bogott (andrewbogott)	* Pool in new zuul-merger process on labs network task T95046
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] 250472 (deploy commands) Enable VisualEditor for 50% of new accounts on eswiki task T117410 Requesting Developer (irc-nickname) Dereckson [config] 253541 (deploy commands) Editatón contra la violencia hacia las mujeres throttle rule (T118702) [config] 252911 (deploy commands) Namespace configuration on ru.wikipedia.org (T117857) [config] 250709 (deploy commands) Set import sources on en.wikiversity (T115938) [config] 250862 (deploy commands) Set $wgCategoryCollation for bs.wikipedia.org (T116527) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Giuseppe (_joe_), Moritz (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Graphoid deployment	yurik	Deploy the latest Graphoid with the Vega2.0 support
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.6->1.27.0-wmf.7 group1 1.27.0-wmf.6 group2 1.27.0-wmf.6 group0 to 1.27.0-wmf.7 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, November 18
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	MaxSem [config] 253772 (deploy commands) Bump portals legoktm [config] 253682 (deploy commands) wgRCWatchCategoryMembership true on group0 wikis Requesting Developer (irc-nickname) Gerrit link to backport or config change
01:00–02:00 UTC # (Tue) 17:00–18:00 PST	Graphoid deployment	yurik	Deploy the latest Graphoid with the Vega2.0 support (take2)
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)	Glaisher (Glaisher) 253903 (deploy commands) Set $wgCategoryCollation to 'uca-sr' at srwiki and srwiktionary Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.7 group1 1.27.0-wmf.6->1.27.0-wmf.7 group2 1.27.0-wmf.6 group1 to 1.27.0-wmf.7 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
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, November 19
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	MaxSem [config] 254065 (deploy commands) Bump portals Roan (RoanKattouw) [wmf.7] 254074 (deploy commands) Better error reporting for Flow opt-in Dereckson [config] 253963 (deploy commands) Whitelist domains for server-side upload - Coding Da Vinci Hackathon (T118844) [config] 254072 (deploy commands) Namespace configuration on es.wiktionary (T119006) 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), or Mark (marktraceur)	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_), Moritz (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.7 group1 1.27.0-wmf.7 group2 1.27.0-wmf.6->1.27.0-wmf.7 group2 to 1.27.0-wmf.7 All Wikipedias
Friday, November 20
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Erik B (ebernhardson) [wmf.7] 254320 (deploy commands) - Attempt language detection and interwiki search when < N results are found [wmf.7] 254319 (deploy commands) - Record if language detection was attempted in cirrus user testing logs [config] 253933 (deploy commands) - Expand list of languages available for language detection test [config] 254070 (deploy commands) - Turn on language detection test for full text search Jeff Hobson (jhobs) [config] 254322 (deploy commands) Enable new QuickSurveys survey on mobile enwiki (T118881) Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of November 23rd

• Week of Thanksgiving (US Holiday)
  • High Priority SWATs only on Mon/Tuesday (Wednesday is "Friday")
  • No normal deploys

By day

Time	Component	Deployer	Changes
Monday, November 23
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.7] Backport of I16e171 Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, November 24
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)	James_F [config] 250473 (deploy commands) Enable VisualEditor for all new accounts on eswiki task T117410 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)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, November 25
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

Week of November 30th

• No normal deploys
• High Priority SWATs only

By day

Time	Component	Deployer	Changes
Monday, November 30
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
Tuesday, December 01
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)	James_F [config] 250474 (deploy commands) Enable VisualEditor for all accounts on eswiki task T117410 Approved by Greg and Katie 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)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, December 02
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
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, December 03
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
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)		Requesting Developer (irc-nickname) Gerrit link to backport or config change
Friday, December 04
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 December 7th

• Week of:
  • Move Catalan and Hebrew Wikipedias to "group1" (ie: Wednesday) deploy group - https://gerrit.wikimedia.org/r/#/c/253371/ - task T115002

By day

Time	Component	Deployer	Changes
Monday, December 07
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
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, December 08
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)	Giuseppe (_joe_), Moritz (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.7->1.27.0-wmf.8 group1 1.27.0-wmf.7 group2 1.27.0-wmf.7 group0 to 1.27.0-wmf.8 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, December 09
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	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.8 group1 1.27.0-wmf.7->1.27.0-wmf.8 group2 1.27.0-wmf.7 group1 to 1.27.0-wmf.8 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites) Move Catalan and Hebrew Wikipedias to "group1" (ie: Wednesday) deploy group - https://gerrit.wikimedia.org/r/#/c/253371/ - task T115002
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, December 10
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), or Mark (marktraceur)	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_), Moritz (moritzm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.8 group1 1.27.0-wmf.8 group2 1.27.0-wmf.7->1.27.0-wmf.8 group2 to 1.27.0-wmf.8 All Wikipedias
Friday, December 11
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

End of year/beginning of new year 'code freezes'

• Week of Nov 23rd: No normal deploys - high prioity SWATs only (pre-approval from Greg needed) (Why: Thanksgiving)
• Week of Nov 30th: No normal deploys - high prioity SWATs only (pre-approval from Greg and/or Katie needed) (Why: First of Dec Fundraising)
• Week of Dec 7th: Normal deploy week
• Week of Dec 14th: Normal deploy week
• Week of Dec 21st: No normal deploys - high prioity SWATs only (and only on Monday and Tuesday) (pre-approval from Greg and/or Katie needed) (Why: End of year Fundraising)
• Week of Dec 28th: No normal deploys - high prioity SWATs only (pre-approval from Greg and/or Katie needed) (Why: End of year Fundraising)
• Week of Jan 4th: No normal deploys - high prioity SWATs only (pre-approval from Greg needed) (Why: DevSummit16 and WMF All Hands)
• Week of Jan 11th: Resume normal deploy schedule

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.