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 26th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, October 26
13:00–15:00 UTC # 06:00–08:00 PDT	Wikidata	aude	Continued deployment of GeoData on test.wikidata and wikidata
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), or Mark (marktraceur)	Erik B (ebernhardson) [config] 248871 (deploy commands) enable cirrus writes to codfw [wmf.3] [WikimediaEvents] 248880 (deploy commands) Update schema id to bust varnish caching wrong version of schema [wmf.3] [WikimediaEvents] 248873 (deploy commands) 248876 (deploy commands) 248877 (deploy commands) Move eventlogging search schema into WikimediaEvents Glaisher (Glaisher) 240640 (deploy commands) Remove Page and Index namespaces from $wgContentNamespaces 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)	Alex (Krenair) 248633 (deploy commands) [config] Change Venetian Wikipedia logo per admin request 248632 (deploy commands) [config] Add QuickSurveys to extension-list-labs 248475 (deploy commands) [config] Remove old unused wmgUseAPIRequestLog code referencing locke, a pmtpa host 248478 (deploy commands) [config] Remove old bugzilla and mingle.corp RSS whitelist entries from mediawiki.org Erik B (ebernhardson) 248871 (deploy commands) [config] Enables cirrus writes to codfw cluster Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, October 27
09:00–10:00 UTC # 02:00–03:00 PDT	Wikidata	aude	Continued deployment / populating GeoData on Wikidata
14:00–15:00 UTC # 07:00–08:00 PDT	ContentTranslation	Kartik Mistry (kart_)	Run ContentTranslation/scripts/fix-stats.php. See task T112626.
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 [config] 248910 (deploy commands) Enable VisualEditor in the 'Projet' namespace on the French Wikipedia task T116603 [wmf.3] 249081 (deploy commands) mw.ForeignStructuredUpload: Mark description as being in source wiki's content language task T116395 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)	Coren, jynus	Alex (Krenair) 244228 (deploy commands) Rename mediawiki::web::sites to mediawiki::web::prod_sites to make room for a new generic sites.pp 244237 (deploy commands) Begin to merge production and beta apache config, starting with nonexistent.conf 246125 (deploy commands) dynamicproxy: Make blocked user agents configurable 247587 (deploy commands) beta: Use new self-signed SSL certificate 248622 (deploy commands) dynamicproxy: Empty data from initial-data.db 248634 (deploy commands) Checkout instead of cherry-pick John (JohnFLewis) 244806 (deploy commands) monitoring: append sms to contact groups, don't override with admins,sms 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->1.27.0-wmf.4 group1 1.27.0-wmf.3 group2 1.27.0-wmf.3 group0 to 1.27.0-wmf.4 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	legoktm [config] 249306 (deploy commands) Set $wgRCWatchCategoryMembership = true on beta cluster Gergő (tgr) [1.27.0-wmf.4] 249314 (deploy commands) Add some error details to bug report Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, October 28
00:00–01:00 UTC # (Tue) 17:00–18:00 PDT	Graphoid service deployment	yurik	Deploy updated Graphoid service - 249324 (deploy commands)
14:00–14:30 UTC # 07:00–07:30 PDT	ContentTranslation	Kartik Mistry (kart_)	Run ContentTranslation/scripts/fix-stats.php. See task T112626.
14:30–15:30 UTC # 07:30–08:30 PDT	TechOps deployment	Moritz (moritzm)	Enable ferm on tin
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)	Erik B (ebernhardson) [wmf.3] 249405 (deploy commands) [wmf.4] 249404 (deploy commands) Delay loading of schema.Search until the event is to be fired to help prevent the wrong version being loaded into varnish and cached mid-deployment of patch immediatly below [wmf.3] 249316 (deploy commands) [wmf.4] 249317 (deploy commands) Bump schema.Search version number to bust varnish cache legoktm [wmf.4] 249350 (deploy commands) LinksUpdate: Keep track of the triggering User [wmf.4] 249351 (deploy commands) Fix page-linked notifications [wmf.4] 249411 (deploy commands) Comment out presentation model for mentions since it fatals on deleted pages aude [config] 249412 (deploy commands) Add pageterms mobile api params for test.wikidata 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.4 group1 1.27.0-wmf.3->1.27.0-wmf.4 group2 1.27.0-wmf.3 group1 to 1.27.0-wmf.4 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)	Erik B (ebernhardson) [config] 243744 (deploy commands) Adjust the timeout for failing write jobs to the elasticsearch cluster MaxSem [config] 248526 (deploy commands) www portals (no-op as not used annywhere) jdlrobson 249585 (deploy commands) and 249581 (deploy commands) Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, October 29
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)	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)	Coren, jynus	Kartik Mistry (kart_) 249735 (deploy commands) CX: Add proxy and yandex_url for cxserver 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.4 group1 1.27.0-wmf.4 group2 1.27.0-wmf.3->1.27.0-wmf.4 group2 to 1.27.0-wmf.4 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)	AaronSchulz 249803 (deploy commands) Fixed getMWScriptWithArgs() user error message Erik B (ebernhardson) [wmf.4] 249912 (deploy commands) Styling fixes for interwiki search results [wmf.4] 249913 (deploy commands) Fix unwriteable cluster errors from MassIndex jobs Roan (RoanKattouw) [wmf.4] 249910 (deploy commands) Fix Flow CAPTCHAs in RTL Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of November 2nd

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, November 02
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)	Matt (matt_flaschen) [config] 249935 (deploy commands) Remove Flow cache version override [wmf.4] 249940 (deploy commands) DEPLOY CONFIG CHANGE FIRST Fix non-deterministic behavior in FeatureIndex Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Flow	Roan (RoanKattouw)	Run FlowFixLinks.php on all wikis
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 03
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)	_joe_, andrewbogott	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)	1.26 schedule group0 1.27.0-wmf.4->1.27.0-wmf.5 group1 1.27.0-wmf.4 group2 1.27.0-wmf.4 group0 to 1.27.0-wmf.5 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, November 04
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)	1.26 schedule group0 1.27.0-wmf.5 group1 1.27.0-wmf.4->1.27.0-wmf.5 group2 1.27.0-wmf.4 group1 to 1.27.0-wmf.5 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 05
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	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
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)	_joe_, andrewbogott	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)	1.26 schedule group0 1.27.0-wmf.5 group1 1.27.0-wmf.5 group2 1.27.0-wmf.4->1.27.0-wmf.5 group2 to 1.27.0-wmf.5 All Wikipedias
Friday, November 06
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	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

Not scheduled yet

• 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
• 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.