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 two-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.
• If your deployment is simple, quick, and low risk (as assessed by you, your team, and the Release Manager) you can sign up for a "SWAT deploy" which is a twice-daily (except Fridays) 60 minute window for those quick, simple, and low risk deploys. Please read the corresponding SWAT deploys page on how to use these.

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.). For the long term roadmap, please see the Roadmap tag in Phabricator (tag policy) and the engineering goals.

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). You can see the current cadence, including which wikis are updated on what days, on the /One week page.

Scheduling

To schedule a deploy window, or if you see a potential conflict with your upcoming deployment, please e-mail Greg Grossmeier (or catch him on IRC, his nickname is greg-g).

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; you can ask Fabrice Florin for support, including if you're not sure what channel(s) to use. 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 June 29th

• June 30th - Midnight UTC - Leap Second

By day

Time	Component	Deployer	Changes
Monday, June 29
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Kartik Mistry (kart_) Done Update ContentTranslation submodule for cherry-pick changes, 221604 (deploy commands), 221605 (deploy commands) Done [config] 221047 (deploy commands) CX: Add eswiki-recommender campaign Alex (Krenair) Done [config] 221009 (deploy commands) More wikitech cleanup Done [config] 221113 (deploy commands) More high-resolution logos for Chinese Wikipedia Done [config] 221405 (deploy commands) Set wikidata's logo specifically for wikidatawiki Done [config] 221612 (deploy commands) Allow ukwiki sysops to add/remove users to accountcreator group 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)	legoktm 220121 (deploy commands) - Remove $wgPopupsSurveyLink as trial is complete Alex (Krenair) [config] 221729 (deploy commands) - More wikitech cleanup Requesting developer (irc handle) Gerrit link to backport or config change
Tuesday, June 30
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Alex (Krenair)	Kartik Mistry (kart_) Done [config] 221831 (deploy commands) CX: Enable CX in all wikipedias except enwiki Alex (Krenair) Done [config] 221803 (deploy commands) Standardise a ton of ticket comments Requesting developer (irc handle) Gerrit link to backport or config change
18:00–20:00 UTC # 11:00–13:00 PDT	MediaWiki train	Tyler (thcipriani), Dan (marxarelli) or Greg (greg-g)	1.26 schedule group0 1.26wmf11->1.26wmf12 group1 1.26wmf11 group2 1.26wmf11 group0 to 1.26wmf12: test wikis and mediawiki.org
20:00–20:30 UTC # 13:00–13:30 PDT	WikibaseQuality/Constraints to testwikidata	Marius (hoo)	Enabling WikibaseQuality and WikibaseQualityConstraints on testwikidatawiki. T103814.
20:30–22:00 UTC # 13:30–15:00 PDT	Flow	Roan (RoanKattouw), Kunal (legoktm), or Matt (matt_flaschen)	Turn Flow on for Catalan's Viquipèdia talk namespace
22:30–23:30 UTC # 15:30–16:30 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), or Alex (Krenair)	Requesting developer (irc handle) Gerrit link to backport or config change
23:30–00:30 UTC # 16:30–17:30 PDT	Leap Second	Alex (akosiaris), Moritz (moritzm)	NO DEPLOYS during the hour around the leap second; we don't want anything muddying possible diagnosis if something does break.
Wednesday, July 01
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (ostriches), 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) or Greg (greg-g)	1.26 schedule group0 1.26wmf12 group1 1.26wmf11->1.26wmf12 group2 1.26wmf11 group1 to 1.26wmf12 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, July 02
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)	Nik (manybubbles), Brad (anomie), Chad (ostriches), 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) or Greg (greg-g)	1.26 schedule group0 1.26wmf12 group1 1.26wmf12 group2 1.26wmf11->1.26wmf12 group2 to 1.26wmf12 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 July 6th

By day

Time	Component	Deployer	Changes
Monday, July 06
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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, July 07
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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) or Greg (greg-g)	1.26 schedule group0 1.26wmf12->1.26wmf13 group1 1.26wmf12 group2 1.26wmf12 group0 to 1.26wmf13: 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, July 08
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Nik (manybubbles), 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) or Greg (greg-g)	1.26 schedule group0 1.26wmf13 group1 1.26wmf12->1.26wmf13 group2 1.26wmf12 group1 to 1.26wmf13 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, July 09
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)	Nik (manybubbles), 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) or Greg (greg-g)	1.26 schedule group0 1.26wmf13 group1 1.26wmf13 group2 1.26wmf12->1.26wmf13 group2 to 1.26wmf13 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

2015

• April-August: Enable Wikibase usage tracking + arbitrary access, in staged roll out to clients. (like we did for "phase1" and "phase2") phab:T49930
  • usage tracking for enwiki + s2 wikis (ptwiki, svwiki, thwiki, trwiki, zhwiki) - July 28 phab:T100785
  • arbitrary access for s3 wikis (part 1, aawiki - lvwiki) + frwiki + jawiki - July 29 phab:T100786 (note that gomwiki and lrcwiki already have arbitrary access)
  • arbitrary access for s3 wikis (part 2, maiwiki - zuwiki) + dewiki - August 3 (?) phab:T100787
  • arbitrary access for enwiki + s2 wikis (bgwiki, eowiki, fiwiki, idwiki, nowiki, plwiki, ptwiki, svwiki, thwiki, trwiki, zhwiki) - August 18 (?) phab:T100788
• September 15: revert phabricator:rOMWC9f1f2e563a79037908a6b6e433b7d9495152a5c0

Deployment trains

• mw:MediaWiki 1.26/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.