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 October 5th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, October 05
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	matt_flaschen [1.27.0-wmf.1] [Flow] 243337 (deploy commands) Fix exception on board and topic history pages 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 / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
21:00–22:00 UTC # 14:00–15:00 PDT	Zero	yurik	242661 (deploy commands) and 243808 (deploy commands) for ZeroBanner 1.27.0-wmf.1
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	James_F [1.27.0-wmf.1] 243729 (deploy commands) VisualEditor – Fix UI regression in auto-focus in template editing (task T114562) jdlrobson Config changes 243728 (deploy commands) and 242942 (deploy commands) Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, October 06
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Kartik Mistry (kart_) [config] 243919 (deploy commands) Enable Suggestion in af, gl, gu, mk, oc, sh and simplewiki 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)	_joe_, andrewbogott	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.1->1.27.0-wmf.2 group1 1.27.0-wmf.1 group2 1.27.0-wmf.1 group0 to 1.27.0-wmf.2: test wikis and mediawiki.org
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Erik B (ebernhardson) 244060 (deploy commands) - Enable multi-cluster configuration for cirrussearch on testwiki Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, October 07
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	James_F, Krenair, RoanKattouw [config] 242041 (deploy commands) VisualEditor: Switch to opt-out for English Wikipedia logged-in users only, except all the users jdlrobson [wmf.1] 244178 (deploy commands) Fix MobileFrontend schema error RoanKattouw [wmf.1] 244179 (deploy commands) Fix JS error in Echo [wmf.2] 244180 (deploy commands) Fix JS error in Echo Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Operations	Moritz (moritzm)	Deploy firewall (ferm) rules on the deployment host, tin. - https://gerrit.wikimedia.org/r/#/c/240083/
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.2 group1 1.27.0-wmf.1->1.27.0-wmf.2 group2 1.27.0-wmf.1 group1 to 1.27.0-wmf.2 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
20:00–21:00 UTC # 13:00–14:00 PDT	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
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change jdlrobson 243837 (deploy commands) config change
Thursday, October 08
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), or Mark (marktraceur)	Kartik Mistry (kart_) 244142 (deploy commands) Enable CX suggestions in ast, bn, ml, nb, ta and ukwiki Mark Holmquist (marktraceur) 244332 (deploy commands) [config] Fix $wgForeignUploadTargets format on Labs 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)	_joe_, andrewbogott	Stas Malyshev (SMalyshev) https://gerrit.wikimedia.org/r/#/c/244045/ Fix logstash port in configs Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.2 group1 1.27.0-wmf.2 group2 1.27.0-wmf.1->1.27.0-wmf.2 group2 to 1.27.0-wmf.2 All Wikipedias
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change AndyRussG 244613 (deploy commands) (Various updates and improvements for CentralNotice) jdlrobson 244584 (deploy commands) (Chinese Wikivoyage bug fix) jdlrobson 244585 (deploy commands) (Stop EventLogging errors)

Week of October 12th

• Week of:
  • Operations Team Offsite, please don't do anything stupid

By day

Time	Component	Deployer	Changes
Monday, October 12
15:00–16:00 UTC # 08:00–09:00 PDT	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
20:00–21:00 UTC # 13:00–14:00 PDT	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
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, October 13
15:00–16:00 UTC # 08:00–09:00 PDT	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
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.2->1.27.0-wmf.3 group1 1.27.0-wmf.2 group2 1.27.0-wmf.2 group0 to 1.27.0-wmf.3: test wikis and mediawiki.org
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, October 14
15:00–16:00 UTC # 08:00–09:00 PDT	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 # 10:00–11:00 PDT	Operations	Moritz (moritzm)	Deploy firewall (ferm) rules on the deployment host, tin. - https://gerrit.wikimedia.org/r/#/c/240083/
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.3 group1 1.27.0-wmf.2->1.27.0-wmf.3 group2 1.27.0-wmf.2 group1 to 1.27.0-wmf.3 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
20:00–21:00 UTC # 13:00–14:00 PDT	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
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), RobM (rmoen), or Alex (Krenair)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, October 15
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
15:00–16:00 UTC # 08:00–09:00 PDT	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
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.27.0-wmf.3 group1 1.27.0-wmf.3 group2 1.27.0-wmf.2->1.27.0-wmf.3 group2 to 1.27.0-wmf.3 All Wikipedias
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or RobM (rmoen)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming

See the Phabricator Roadmap workboard for details on many upcoming plans.

Long term callouts

October

• Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663
• No date: Clean up skin user preferences in user_properties table on Wikimedia wikis – phab:T54778, use WikimediaMaintenance's cleanupSkinPrefs
• No date: Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649

Not scheduled yet

• 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 1.26/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.