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 August 31st

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, August 31
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)	Bartosz Dziewoński (MatmaRex) 234553 (deploy commands) Keep the uploads sorted in the order they were created in initially [UploadWizard] 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 / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/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 01
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_	Antoine Musso (hashar) https://gerrit.wikimedia.org/r/234669 admin: remove dupe 'haithams' from statistics-users https://gerrit.wikimedia.org/r/234670 admin: add 'demon' to gerrit-admins group https://gerrit.wikimedia.org/r/234539 admin: let contint-admins run puppet Antoine Musso (hashar) - Already deployed on integration puppet master: https://gerrit.wikimedia.org/r/234239 contint: drop /data/project/debianrepo https://gerrit.wikimedia.org/r/226729 contint: install pip 7.1.0 from pypi https://gerrit.wikimedia.org/r/226730 contint: drop pip obsolete download-cache option https://gerrit.wikimedia.org/r/233413 elasticsearch: ensure /var/run subdir exists
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.26 schedule group0 1.26wmf20->1.26wmf21 group1 1.26wmf20 group2 1.26wmf20 group0 to 1.26wmf21: 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 02
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 1.26wmf21 group1 1.26wmf20->1.26wmf21 group2 1.26wmf20 group1 to 1.26wmf21 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 / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/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 03
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 1.26wmf21 group1 1.26wmf21 group2 1.26wmf20->1.26wmf21 group2 to 1.26wmf21 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 7th

• Week of:
  • nothing yet

By day

Time	Component	Deployer	Changes
Monday, September 07
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 / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/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 08
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 1.26wmf21->1.26wmf22 group1 1.26wmf21 group2 1.26wmf21 group0 to 1.26wmf22: 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 09
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 1.26wmf22 group1 1.26wmf21->1.26wmf22 group2 1.26wmf21 group1 to 1.26wmf22 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 / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/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 10
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 1.26wmf22 group1 1.26wmf22 group2 1.26wmf21->1.26wmf22 group2 to 1.26wmf22 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 15: revert phabricator:rOMWC9f1f2e563a79037908a6b6e433b7d9495152a5c0
• No date: 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
• No date: 231465 (deploy commands) Enable VisualEditor for all new accounts on enwiki task T90664
• 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 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.