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 14th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, September 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)	Alex (Krenair) [config] 237529 (deploy commands) Revert "Add interwiki-labs.cdb" Brian (bawolff) [config] 234980 (deploy commands) Add *.ggpht.com to Wikimedia Commons upload whitelist Roan (RoanKattouw) [wmf22] 238160 (deploy commands) Don't load OOUI styles on every page (performance regression) Requesting developer (irc handle) 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)	Done James (James_F) [wmf22] Fix badtoken handling in UploadWizard (again (again)) 238334 (deploy commands) Done Erik B (ebernhardson) [wmf22] 238355 (deploy commands) Change bucket selection in CompletionSuggestions AB test. Requesting developer (irc handle) Gerrit link to backport or config change
Tuesday, September 15
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)	Giuseppe (_joe_) 238108 (deploy commands) poolcounter: add connect_timeout in codfw 238109 (deploy commands) poolcounter: enable connect_timeout for testwiki aude [config] 229197 (deploy commands) Exclude topic (flow) and draft namespaces from Special:UnconnectedPages Bartosz Dziewoński (MatmaRex) [wmf22] 238421 (deploy commands) [UploadWizard] Don't fail horribly when invalid categories are passed Kartik Mistry (kart_) [config] 237327 (deploy commands) CX: Enable suggestion for testwiki
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	YuviPanda, _joe_	Alex (Krenair) 236555 (deploy commands) beta apache config: Move wikipedia and wikibooks out of main.conf into their own files 236556 (deploy commands) beta apache config: make wikipedia.conf more consistent with the other files 236563 (deploy commands) beta apache config: fix instances of 'wikibooks' that were copy+pasted everywhere 236566 (deploy commands) beta apache config: more consistency for wiktionary and wikipedia 236567 (deploy commands) beta apache config: remove nonsensical rewrites Chad (ostriches) 238191 (deploy commands) Tweaks to my own ~/.gitconfig Requesting developer (irc handle) 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 1.26wmf22->1.26wmf23 group1 1.26wmf22 group2 1.26wmf22 group0 to 1.26wmf23: 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)	Krinkle 238512 (deploy commands) [wmf22] Log url size errors to statsd 238513 (deploy commands) [wmf23] Log url size errors to statsd 238537 (deploy commands) [wmf22] resourceloader: Don't call wfExpandUrl() on load.php urls 238545 (deploy commands) [wmf23] resourceloader: Don't call wfExpandUrl() on load.php urls 238543 (deploy commands) [config] Remove hardcoded $wgCanonicalServer from $wgResourceBasePath (T112646) James (James_F) [wmf23] Fix VisualEditor welcome graphic 238519 (deploy commands) MaxSem 238617 (deploy commands) [wmf22] 238618 (deploy commands) [wmf23] WikimediaEvents fixes Requesting developer (irc handle) Gerrit link to backport or config change
Wednesday, September 16
10:00–11:00 UTC # 03:00–04:00 PDT	Wikidata	aude	Enable arbitrary access for enwiki + s2 wikis (bgwiki, eowiki, fiwiki, idwiki, nowiki, plwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki) phab:T100788
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 handle) 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 1.26wmf23 group1 1.26wmf22->1.26wmf23 group2 1.26wmf22 group1 to 1.26wmf23 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 handle) Gerrit link to backport or config change
Thursday, September 17
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 handle) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	YuviPanda, _joe_	Requesting developer (irc handle) 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 1.26wmf23 group1 1.26wmf23 group2 1.26wmf22->1.26wmf23 group2 to 1.26wmf23 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 handle) Gerrit link to backport or config change

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)	Requesting developer (irc handle) 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 handle) Gerrit link to backport or config change
Tuesday, September 22
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 handle) 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 handle) 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 1.26wmf23->1.26wmf24 group1 1.26wmf23 group2 1.26wmf23 group0 to 1.26wmf24: 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 handle) 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 handle) 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 handle) 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 handle) 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 handle) 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 handle) Gerrit link to backport or config change

Upcoming

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

Long term callouts

September

• September 16: enable arbitrary access for enwiki + s2 wikis (bgwiki, eowiki, fiwiki, idwiki, nowiki, plwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki) phab:T100788
• 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.