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 February 1st

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, February 01
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), or Mark (marktraceur)	James_F Done [config] 264765 (deploy commands) Enable VisualEditor by default for some other wikis task T116523 Done [config] 258206 (deploy commands) Centralise all VisualEditor feedback pages except for a few wikis task T92661 Sébastien (Dereckson) Done [config] 265885 (deploy commands) Namespace configuration on cu.wikipedia (task T123654) Done [config] 266541 (deploy commands) Set WikidataPageBanner namespaces on fr.wikivoyage (task T123084) Done [config] 267195 (deploy commands) Enable WikidataPageBanner on es.wikivoyage (task T125000) Done [config] 267194 (deploy commands) Enable SandboxLink on or.wikipedia.org (task T124614) Done [config] 266433 (deploy commands) Use extension registration for Graph (task T119117)
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, February 02
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	bd808 Done [config] 267469 (deploy commands) Revert "monolog: Ensure that context data added by WebProcessor is utf-8 safe" Erik Bernhardson (ebernhardson) Done [config] 267662 (deploy commands) Put more like query load back on eqiad for load testing James Alexander (jamesofur) Done [backport] 267626 (deploy commands) Backport cookie statement to wmf10. (will need scap). Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, February 03
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)	Item's from yesterday's postponed SWAT Kelson [config] 262893 (deploy commands) Two new entries in the Commons site white list for GWT - task T123109 bd808, bmansurov [config] 267807 (deploy commands) Just use the default MobileFrontend specified page actions Brandon Black (bblack) [config] 267234 (deploy commands) MW parsoid URLs: s/parsoidcache/parsoid/ - task T110474 Sam Smith (phuedx) [config] 267776 Remove section collapsing config - task T124220 Requesting Developer (irc-nickname) Gerrit link to backport or config change Requesting Developer (irc-nickname) Gerrit link to backport or config change 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_), Emanuele (ema)	Marko (mobrovac), Michael (mdholloway), Bernd (bearND) 267392 (deploy commands) MobileApps: Change RESTBase URI Marko (mobrovac) 267917 (deploy commands) RESTBase: Enable metrics batching Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 12:00–13:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.11->1.27.0-wmf.12 group1 1.27.0-wmf.11 group2 1.27.0-wmf.11 group0 to 1.27.0-wmf.12 test wikis and mediawiki.org Blocker ticket: task T125475
21:00–22:00 UTC # 13:00–14:00 PST	MediaWiki train	Antoine (hashar)	1.27 schedule group0 1.27.0-wmf.12 group1 1.27.0-wmf.11->1.27.0-wmf.12 group2 1.27.0-wmf.11 group1 to 1.27.0-wmf.12 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias
22:00–23:00 UTC # 14:00–15:00 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, February 04
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), 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)	Moritz (moritzm), mutante (mutante)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid / …	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.12 group1 1.27.0-wmf.12 group2 1.27.0-wmf.11->1.27.0-wmf.12 group2 to 1.27.0-wmf.12 All Wikipedias
Friday, February 05
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Addshore (Addshore) [config] 267646 (deploy commands) Set wgRCWatchCategoryMembership true on wikipedias & commons

Week of February 8th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, February 08
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)	Addshore (Addshore) [config] 264734 (deploy commands) Set wgRCWatchCategoryMembership true everywhere except wikisource
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, February 09
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_), Emanuele (ema)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid / …	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.12->1.27.0-wmf.13 group1 1.27.0-wmf.12 group2 1.27.0-wmf.12 group0 to 1.27.0-wmf.13 test wikis and mediawiki.org
23:00–00:00 UTC # 15:00–16:00 PST	s2 database master switch	Jaime (jynus)	Changing the master for the s2 shard because of: hardware maintenance OS upgrade and mariadb upgrade (5.5 -> 10)
Wednesday, February 10
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
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.13 group1 1.27.0-wmf.12->1.27.0-wmf.13 group2 1.27.0-wmf.12 group1 to 1.27.0-wmf.13 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias
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, February 11
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), Mark (marktraceur), or Alex (Krenair)	Addshore (Addshore) [config] 264735 (deploy commands) Set wgRCWatchCategoryMembership true on wikisource
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 8 patches)	Moritz (moritzm), mutante (mutante)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / OCG / Citoid / …	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
20:00–22:00 UTC # 12:00–14:00 PST	MediaWiki train	Dan (marxarelli)	1.27 schedule group0 1.27.0-wmf.13 group1 1.27.0-wmf.13 group2 1.27.0-wmf.12->1.27.0-wmf.13 group2 to 1.27.0-wmf.13 All Wikipedias
Friday, February 12
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

Long term callouts

Wikidata-related (exact times to be scheduled, and some of these could be in swat):

• Enable ArticlePlaceholder extension on test.wikipedia, test2 + testwikidata (February 9)
• Formula data type, enable on test.wikidata (February 2), and on Wikidata (February 9)
• Other projects sidebar (February 16)
• Enable external identifier data type (February 16)
• Enable Wikibase Client on Wikiversity (February 23)

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 arbitrary access on commons. phab:T49930

Deployment trains

• mw:MediaWiki 1.27/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.