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 September 21st

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, September 21
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_) [wmf23] 239844 (deploy commands) Update the data for the categories test [wmf23] 239819 (deploy commands) Revert "Do not call cxserver to display gray interwiki link" Glaisher 239403 (deploy commands) Remove redundant entries from robots.txt 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), 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)	CSteipp (WMF) (csteipp) [config] https://gerrit.wikimedia.org/r/#/c/238357/ Enable captchas on testwiki aude [wmf23] 239828 (deploy commands) - Fix bug in autocomment formatting (probably via abuse filter) and change coalescing bug. Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, September 22
10:00–11:00 UTC # 03:00–04:00 PDT	Wikidata	aude	Enable data access for Wikibooks projects.
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
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	RobH, bblack	Requesting Developer (irc-nickname) Gerrit link to backport or config change Alex (Krenair) 239278 (deploy commands) Redirect et.wikimedia.org to ee.wikimedia.org jzerebecki 229426 (deploy commands) Change docs and integration.m.o to rewrite 239367 (deploy commands) Make link in dataset relative 230483 (deploy commands) Create real URIs for wikidata RDF URIs
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.26wmf23->1.26wmf24 group1 1.26wmf23 group2 1.26wmf23 group0 to 1.26wmf24: test wikis and mediawiki.org
22:00–23:00 UTC # 15:00–16:00 PDT	Flow references migration	Roan (RoanKattouw)	238111 (deploy commands) Set $wgFlowMigrateReferenceWiki to false in production
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Alex (Krenair) [config] 239308 (deploy commands) Make commons and wikimania SUL logos transparent [config] 240259 (deploy commands) Copy default $wgEchoDefaultNotificationTypes['emailuser'] into wmf-config [config] 240278 (deploy commands) Reverting AbuseFilter configuration for ee.wikipedia.org legoktm (legoktm) 240283 (deploy commands) Replace the orange bar with talk-page link, don't remove it 240281 (deploy commands) Move timing.MediaWiki.echo.overlay stats into ext.echo.init Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, September 23
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 1.26wmf24 group1 1.26wmf23->1.26wmf24 group2 1.26wmf23 group1 to 1.26wmf24 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), 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, September 24
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
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	RobH, bblack	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 1.26wmf24 group1 1.26wmf24 group2 1.26wmf23->1.26wmf24 group2 to 1.26wmf24 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

Week of September 28th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, September 28
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), 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, September 29
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
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	godog, jynus	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 1.26wmf24->1.27.0-wmf.1 group1 1.26wmf24 group2 1.26wmf24 group0 to 1.27.0-wmf.1: 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, September 30
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.1 group1 1.26wmf24->1.27.0-wmf.1 group2 1.26wmf24 group1 to 1.27.0-wmf.1 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), 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 01
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
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	godog, jynus	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.1 group1 1.27.0-wmf.1 group2 1.26wmf24->1.27.0-wmf.1 group2 to 1.27.0-wmf.1 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

Upcoming

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

Long term callouts

September

• No date: Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649

October

• No date: Re-enable VisualEditor by default for most logged-in users of the English Wikipedia
• No date: Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663

Not scheduled yet

• 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.