Deployments

Notes:

• Ask for a little more time than what you think you'll need for deployment and testing; you never know what issues may come up and slow you down.
  • Generally, we have found one hour 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 are for pushing out simple and low-risk changes (as assessed by you, SWAT team, and the Release Manager). They happen at:
  • 06:00, 11:00 and 16:00 Pacific on Mondays and Thursdays
  • 06:00 and 16:00 Pacific on Tuesdays
  • 06:00, 10:00 and 16:00 Pacific on Wednesdays

For detailed instructions on how to actually deploy code to the Wikimedia servers, see How to deploy code.

Deployments
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This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia projects (Wikipedia, Wiktionary, Wikiversity, 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.

Long running tasks/scripts

While not strictly a deployment, performing long running (>1 hour) tasks (eg: migration scripts) can encounter issues when code is updated while a script is being run. For this reason it is required to add an entry in the calendar for the task with a window that accounts for the anticipated start time and estimated length for the task.

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.

Something went wrong‽ (see also Incident response)

• Is there a user-impacting or other severe issue?
  • Communicate this in the #wikimedia-operations ^connect IRC channel.
  • Add the #wikimedia-incident project to any relevant Phabricator task; if appropriate set to UBN! priority.
• What happens next?
  • In case of halting or reverting the weekly train

Near-term

NOTE: You can also subscribe to the "WMF Deployments" google calendar by adding <wikimedia.org_rudis09ii2mm5fk4hgdjeh1u64@group.calendar.google.com>. This does not always get one-off windows that are noted below. This wiki page is the canonical deployment schedule and any differences with the google calendar are to be interpreted as the google calendar being incorrect.

Week of February 03

Time	Component	Deployer	Changes
Monday, February 03
11:30–12:00 UTC # 03:30–04:00 PST	Wikimedia Portals Update	Jan Drewniak (jan_drewniak)	Weekly window for the portals page: https://www.wikipedia.org/
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	revi [config] 569267 (deploy commands) Add wgImportSources for hiwikibooks Zoranzoki21 [config] 557439 (deploy commands) Add minerva custom logo for la.wiki [config] 565723 (deploy commands) Add vzg-easydb.gbv.de to the wgCopyUploadsDomains If it's okay with Zoranzoki21 and time allows could you also deploy the following similar changes (jdlrobson (talk) 04:38, 3 February 2020 (UTC))?: [config] 557584 (deploy commands) Re-add localized Wikipedia wordmark for szlwiki [config] 565549 (deploy commands) Add wordmark for etwiki [config] 562025 (deploy commands) Disable MobileFrontend Mainpage special casing on frwiktionary [config] 567307 (deploy commands) Update logo for zh_classical wiki [config] 567306 (deploy commands) Enable new user message for auto-created accounts on zh_classical wiki tarrow [config] 569515 (deploy commands) Wikidata - enable TaintedRefs Martin (Urbanecm) [config] 567240 (deploy commands) Assign editautopatrolprotected to hewiki patrollers Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–18:30 UTC # 10:00–10:30 PST	Wikidata Query Service weekly deploy	Guillaume (gehel), Mathew (onimisionipe)	...
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Eric E. (urandom) [config] 565696 (deploy commands) Transition remainder of testwikis to sessionstore (multi-write kask/redis) Pikne [config] 569310 (deploy commands) Add gcr, mnw and szy to InterwikiSortOrders
21:00–22:00 UTC # 13:00–14:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
22:00–00:00 UTC # 14:00–16:00 PST	Weekly Security deployment window	Sam (Reedy), Scott (sbassett)	Held deployment window for Security-team related deploys.
Tuesday, February 04
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Eric E. (urandom) Done [config] 569609 (deploy commands) Transition remainder of testwikis to sessionstore (kask-only) James_F Done [config] 566866 (deploy commands) [nlwiki] Enable VisualEditor by default for all users (task T161365) Requesting Developer (irc-nickname) Gerrit link to backport or config change
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Pre MediaWiki train sanity break		No Deploys
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Mukunda (twentyafterfour), Dan (marxarelli)	1.35 schedule group0 1.35.0-wmf.16->1.35.0-wmf.18 group1 1.35.0-wmf.16 group2 1.35.0-wmf.16 group0 to 1.35.0-wmf.18 Blockers: task T233866
Wednesday, February 05
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Eric E. (urandom) [config] 569678 (deploy commands) Configure group0 wikis for kask-transition (multi-write)
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Mukunda (twentyafterfour), Dan (marxarelli)	1.35 schedule group0 1.35.0-wmf.18 group1 1.35.0-wmf.16->1.35.0-wmf.18 group2 1.35.0-wmf.16 group1 to 1.35.0-wmf.18 Blockers: task T233866
21:00–22:00 UTC # 13:00–14:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
Thursday, February 06
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	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
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Mukunda (twentyafterfour), Dan (marxarelli)	1.35 schedule group0 1.35.0-wmf.18 group1 1.35.0-wmf.18 group2 1.35.0-wmf.16->1.35.0-wmf.18 group2 to 1.35.0-wmf.18 Blockers: task T233866
Friday, February 07
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming events

• 17 February (Presidents' Day): No deploys
• 9 March (US DST switchover + 1 day): No deploys
• 25 May (Memorial Day): No deploys

Past deployments

• /Archive