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 March 21st

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, March 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 Katie (aude)	Bartosz (MatmaRex) [wmf.17] 278724 (deploy commands) UploadBase: Set mFileSize, if given, even if mTempPath is unknown 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), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, March 22
09:00–10:00 UTC # 02:00–03:00 PDT	terbium/tin maintenance	Moritz (moritzm)	Reboot of terbium/tin for kernel updates
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	Kartik Mistry (kart_) [wmf.17] 278843 (deploy commands) Fix JS error in MT tool: MTControlCard.providers undefined MarcoAurelio (mafk) [config] 278876 (deploy commands) Configuring wgMetaNamespaces for an.wiktionary (task T130599). [config] 272479 (deploy commands) Enabling signature button on NS:102 at fr.wikipedia (task T127688). 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)	Alex (akosiaris), Moritz (moritzm)	Eric E. (urandom) 278330 (deploy commands) Add custom cluster field to logstash messages 277265 (deploy commands) Filter StatusLogger messages from logstash messages Mukunda Modell (twentyafterfour) 274502 (deploy commands) Add a deployment source and target class for phabricator Marko (mobrovac) 278893 (deploy commands) RESTBase: Use the cassandra back-end Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Michael (mdholloway)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.17->1.27.0-wmf.18 group1 1.27.0-wmf.17 group2 1.27.0-wmf.17 group0 to 1.27.0-wmf.18 test wikis and mediawiki.org Blockers: task T129691
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Tomasz [config] 278321 (deploy commands) Update favicon for Test Wikidata [config] 278334 (deploy commands) Create a HiDPI logo for the Czech Wikipedia (cswiki) Jan Drewniak (jan_drewniak) [config] 278902 (deploy commands) Deploying wikipedia.org portal A/B test (task T124111). Sébastien (Dereckson) [config] 278411 (deploy commands) Disable upload on ia.wikipedia (task T130425) [config] 278959 (deploy commands) Allow bureaucrat group to add/remove translationadmin on species (task T129888) [config] 278213 (deploy commands) Revert "Remove extraneous namespace shorcut alias on ru.wikibooks" (task T127591) Erik B (ebernhardson) [wmf.17] 279073 (deploy commands) Revert "Run AB test with phrase boost of 1" [wmf.18] 279074 (deploy commands) Revert "Run AB test with phrase boost of 1"
Wednesday, March 23
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:30–17:30 UTC # 09:30–10:30 PDT	MediaWiki ActionApi logging	bd808	bd808 Done [backport] 278207 (deploy commands) Rename ApiRequest to ApiAction Done [config] 278347 (deploy commands) Logging: add ApiAction kafka logging
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.18 group1 1.27.0-wmf.17->1.27.0-wmf.18 group2 1.27.0-wmf.17 group1 to 1.27.0-wmf.18 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T129691
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
22:00–23:00 UTC # 15:00–16:00 PDT	Update wikitech's 2FA token format	csteipp	csteipp [backport] 279086 (deploy commands) Refactor extension key storage, and associated maintenance script Scratch tokens may not work during this window
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	MaxSem [config] 279158 (deploy commands) - Add channel for slow diff logs RoanKattouw [wmf.18] 279264 (deploy commands) Fix watchlist exceptions [wmf.18] 279256 (deploy commands) Add Echo footer notice [config] 279175 (deploy commands) Plumbing for $wmgEchoShowFooterNotice (should be a no-op) [config] 279263 (deploy commands) Enable Echo footer notice on testwiki [wmf.17] 279279 (deploy commands) Fix for VisualEditor table pasting Sébastien (Dereckson) [config] 279260 (deploy commands) Import sources for ne.wikibooks (task T129831) [config] 279254 (deploy commands) Namespace configuration for ne.wiktionary (task T129768) [config] 279268 (deploy commands) Extension registration for Cite (task T119117) Bartosz (MatmaRex) [wmf.18] 279277 (deploy commands) [UploadWizard] Don't try to read a file to make thumbnails if there's none
Thursday, March 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 Katie (aude)	James_F [config] 277822 (deploy commands) Enable wgIncludeLegacyJavaScript explicitly (no-op) 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)	Alex (akosiaris), Moritz (moritzm)	Chad (ostriches) 266773 (deploy commands) Keep /srv/patches in sync between deployment masters Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	rollback codfw switchover for swift originals	Filippo (godog)	Filippo (godog) 279356 (deploy commands) eqiad upload cache to 'direct' 279357 (deploy commands) codfw upload cache to 'eqiad' 279358 (deploy commands) upload cache backends to 'eqiad' 279361 (deploy commands) mediawiki async writes to 'codfw'
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.18 group1 1.27.0-wmf.18 group2 1.27.0-wmf.17->1.27.0-wmf.18 group2 to 1.27.0-wmf.18 All Wikipedias Blockers: task T129691
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), Max (MaxSem), or Adam (awight)	Bernd (bearND) [wmf.18] 278949 (deploy commands) Roll out RESTBase usage to Android production app: 2% Sébastien (Dereckson) [config] 276737 (deploy commands) Set $wgNamespacesWithSubpages to true for NS_TEMPLATE for ru.wikisource (task T124615) [config] 279294 (deploy commands) Update extension-list for extension registration (task T119117) [config] 279371 (deploy commands) Enable extension registration for InputBox (task T119117) [config] 279372 (deploy commands) Enable extension registration for ParserFunctions (task T119117) [config] 279365 (deploy commands) Add massmessage-sender group to zh.wiki (task T130814) csteipp [wmf.18] 279427 (deploy commands) Allow Ex:OATH to use a central db for secrets jdlrobson [wmf.18] 279429 (deploy commands): Fix language variants [wmf.18] 279261 (deploy commands) merged but not synced? [config] 279433 (deploy commands) config change Roan (RoanKattouw) [wmf.18] 279540 (deploy commands) Echo footer notice styling fixes [config] 279439 (deploy commands) Enable Echo footer notice on enwiki James_F [wmf.18] 279541 (deploy commands) Update VE-MW submodule to wmf/1.27.0-wmf.18 HEAD (9669db0) [wmf.18] 279434 (deploy commands) Fix warning about undefined i18n messages in CX [wmf.18] 279435 (deploy commands) Fix warning about undefined i18n messages in Flow [wmf.18] 279440 (deploy commands) Fix warning about undefined i18n messages in Graph Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of March 28th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, March 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 Katie (aude)	Andrew Bogott (andrewbogott) 279569 (deploy commands) Wikitech: Remove address, domain, proxy special pages Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	Labs DNS & Horizon switch-over	Andrew Bogott (andrewbogott), Alex Monk (krenair)	Switching to a new public DNS setup for labs: https://phabricator.wikimedia.org/T124184
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), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, March 29
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	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)	Giuseppe (_joe_), Guillaume (gehel)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.18->1.27.0-wmf.19 group1 1.27.0-wmf.18 group2 1.27.0-wmf.18 group0 to 1.27.0-wmf.19 test wikis and mediawiki.org Blockers: task T130227
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, March 30
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.19 group1 1.27.0-wmf.18->1.27.0-wmf.19 group2 1.27.0-wmf.18 group1 to 1.27.0-wmf.19 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T130227
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), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, March 31
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 Katie (aude)	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)	Giuseppe (_joe_), Guillaume (gehel)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.19 group1 1.27.0-wmf.19 group2 1.27.0-wmf.18->1.27.0-wmf.19 group2 to 1.27.0-wmf.19 All Wikipedias Blockers: task T130227
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), Max (MaxSem), or Adam (awight)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of April 4th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, April 04
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Katie (aude)	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), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Tuesday, April 05
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	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)	Giuseppe (_joe_), Guillaume (gehel)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.19->1.27.0-wmf.20 group1 1.27.0-wmf.19 group2 1.27.0-wmf.19 group0 to 1.27.0-wmf.20 test wikis and mediawiki.org Blockers: task T130945
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, April 06
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.20 group1 1.27.0-wmf.19->1.27.0-wmf.20 group2 1.27.0-wmf.19 group1 to 1.27.0-wmf.20 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T130945
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), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, April 07
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 Katie (aude)	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)	Giuseppe (_joe_), Guillaume (gehel)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Tyler (thcipriani)	1.27 schedule group0 1.27.0-wmf.20 group1 1.27.0-wmf.20 group2 1.27.0-wmf.19->1.27.0-wmf.20 group2 to 1.27.0-wmf.20 All Wikipedias Blockers: task T130945
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), Max (MaxSem), or Adam (awight)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming

DC Fallover Test

• Week of April 18th - more info at: Switch Datacenter

2016 Q2 (FY 201516-Q4)

• May 2: Remove the "HTTPS to HTTP" URL filter in the IRC feed — phab:T122933

Long term callouts

Not scheduled yet

• Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663
• 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.