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Deployments

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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

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)

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 24

Time Component Deployer Changes

Monday, February 24

 UTC #
 PST
Wikimedia Portals Update Jan Drewniak (jan_drewniak) Weekly window for the portals page: https://www.wikipedia.org/
 UTC #
 PST
European Mid-day SWAT
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Kartik Mistry (kart_)
  • [config] 574265 Adjust MT threshold for Telugu to 70%

Amir Sarabadani (Amir1)

  • [wmf.20] 574391 Use formatter cache in client LUA label lookups
  • [config] 571738 Add definitions for redirect badges

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-24-12

 UTC #
 PST
Wikidata Query Service weekly deploy Guillaume (gehel), Mathew (onimisionipe) ...
 UTC #
 PST
Morning SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Petr Pchelko (Pchelolo)
  • [Config] [Labs-only] 574034 Beta sessionstore: don't use TLS

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-24-19

 UTC #
 PST
ServicesGraphoid / Parsoid / Citoid / ORES C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze) See Graphoid, mw:Parsoid/Deployments
 UTC #
 PST
Weekly Security deployment window Sam (Reedy), Scott (sbassett) Held deployment window for Security-team related deploys.

Tuesday, February 25

 UTC #
(Mon)  PST
Evening SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-25-00

 UTC #
 PST
European Mid-day SWAT
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Requesting Developer (irc-nickname)

Kosta Harlan (kostajh)

  • [config] 574427 NewcomerTasks: Enable guidance on betalabs wikis
  • [config] 574428 NewcomerTasks: Disable guidance on all wikis except testwiki
  • [config] 574633 Add ORES topics related config for GrowthExperiments

Martin Urbanec (Urbanecm)

  • [config] 574720 New throttle rule for arwiki WikiGap

Gerrit hashtag: swat-2020-02-25-12

 UTC #
 PST
Puppet SWAT
(Max 6 patches)
Filippo (godog), Giuseppe (_joe_) Martin Urbanec (Urbanecm)
  • 574726 make mwscriptwikiset respect comments set in dblists

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PST
ServicesGraphoid / Parsoid / Citoid / ORES C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze) See Graphoid, mw:Parsoid/Deployments
 UTC #
 PST
Pre MediaWiki train sanity break No Deploys
 UTC #
 PST
Mediawiki train - American Version Jeena (longma), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.20->1.35.0-wmf.21
group1 1.35.0-wmf.20
group2 1.35.0-wmf.20

Wednesday, February 26

 UTC #
(Tue)  PST
Evening SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) mooeypoo
  • [config] 573788 Enable password-reset-update on Wikivoyages and Wiktionaries

Stephen Niedzielski (niedzielski)

  • [config] 572039 [prod] [beta] [Vector] Set skin version defaults

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-26-00

 UTC #
 PST
European Mid-day SWAT
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Kartik Mistry (kart_)
  • [config] 574469 Enable CX out of beta in eu, sw and ta WPs
  • [config] 416973 ContentTranslation: Set cookieDomain for Production

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-26-12

 UTC #
 PST
Morning SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Amir Sarabadani (Amir1)
  • [wmf.20] 575055 Do prefetching entity ids on batches of 20 entity per query
  • [wmf.21] 575054 Do prefetching entity ids on batches of 20 entity per query

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-26-19

 UTC #
 PST
Mediawiki train - American Version Jeena (longma), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.21
group1 1.35.0-wmf.20->1.35.0-wmf.21
group2 1.35.0-wmf.20
 UTC #
 PST
ServicesGraphoid / Parsoid / Citoid / ORES C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze) See Graphoid, mw:Parsoid/Deployments

Thursday, February 27

 UTC #
(Wed)  PST
Evening SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-27-00

 UTC #
(Wed)  PST
Phabricator update Mukunda (twentyafterfour) HOLD: Window to update phabricator.wikimedia.org
 UTC #
 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

Gerrit hashtag: swat-2020-02-27-12

 UTC #
 PST
Puppet SWAT
(Max 6 patches)
Filippo (godog), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PST
ServicesGraphoid / Parsoid / Citoid / ORES C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze) See Graphoid, mw:Parsoid/Deployments
 UTC #
 PST
Morning SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-27-19

 UTC #
 PST
Mediawiki train - American Version Jeena (longma), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.21
group1 1.35.0-wmf.21
group2 1.35.0-wmf.20->1.35.0-wmf.21

Friday, February 28

 UTC #
(Thu)  PST
Evening SWAT
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Gerrit hashtag: swat-2020-02-28-00

 UTC #
 PST
NO DEPLOYS Everyone Friday

Upcoming events

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

Past deployments

See also