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.
  • Backport windows are for pushing out simple and low-risk changes (as assessed by you, backport team, and the Release Engineering Team). They happen on Mondays to Thursdays at:
    • "European Mid-day backport window", 04:00 Pacific
    • "Morning backport window", 11:00 Pacific (except Tuesdays)
    • "Evening backport window", 16:00 Pacific

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

Deployments

This page tracks upcoming deployments of software to the Wikimedia Foundation servers that host Wikimedia project sites (Wikipedia, Wiktionary, Wikiversity, Wikimedia Commons, etc.).

Cadence
For the core software ("MediaWiki"): 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).
For other non-core software: Each team is responsible for their own schedule.
Scheduling
To schedule a deploy window, or if you see a potential conflict with your upcoming deployment, please contact the Release Engineering Team on IRC at #wikimedia-releng connect; pinging Greg (greg-g) or Tyler (thcipriani) directly helps.
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 June 29

Time Component Deployer Changes

Sunday, June 28

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Monday, June 29

 UTC #
 PDT
Wikimedia Portals Update Jan Drewniak (jan_drewniak) Weekly window for the portals page: https://www.wikipedia.org/
 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Adam W. (awight)
  • N Not done [config] 608278 Prepare configuration for a QuickSurvey on dewiki, does not activate.

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Wikidata Query Service weekly deploy Guillaume (gehel), Mathew (onimisionipe) ...
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) ProcrastinatingReader (ProcReader)
  • 608247 [config] Setup rollbacker and mover on lijwiki

Cindy Cicalese (Cicalese)

  • 608062 [config] Add HTTP proxy to MediaModeration
 UTC #
 PDT
ServicesGraphoid / Citoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Weekly Security deployment window Sam (Reedy), Scott (sbassett) Held deployment window for Security-team related deploys.
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Tuesday, June 30

 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Adam W. (awight)
  • [wmf.38 FileImporter] 608476 Correctly report source wiki edit permissions
  • [wmf.38 QuickSurveys] 608477 Embedded surveys should be hidden when no element is available
  • [config] 608478 Configure TeWü survey on dewiki (take 2)

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Pre MediaWiki train sanity break No Deploys
 UTC #
 PDT
Mediawiki train - European+American Version Antoine (hashar), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.38->1.35.0-wmf.39
group1 1.35.0-wmf.38
group2 1.35.0-wmf.38
 UTC #
 PDT
Puppet request window
(Max 6 patches)
Filippo (godog), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to Puppet change
 UTC #
 PDT
ServicesGraphoid / Citoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Gergő (tgr)
  • [wmf.39] 608485 ElectronPdfService: Hotfix: "Undefined index: print"

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - European+American Version (secondary timeslot) Antoine (hashar), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.38->1.35.0-wmf.39
group1 1.35.0-wmf.38
group2 1.35.0-wmf.38
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Wednesday, July 01

 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Michael Große (WMDE) (micgro42)
  • T255241 run Wikibase repo maintenance script changePropertyDataType.php with the IDs from the ticket and "external-id" as second argument

Gergő (tgr)

  • [config] 608713 Fully set MW_NO_SESSION for browser metadata endpoints

Taavi (Majavah)

  • [config] 608799 Enable SandboxLink extension in trwiki

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Pre MediaWiki train sanity break No Deploys
 UTC #
 PDT
Mediawiki train - European+American Version Antoine (hashar), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.39
group1 1.35.0-wmf.38->1.35.0-wmf.39
group2 1.35.0-wmf.38
 UTC #
 PDT
Train log triage with CPT Antoine (hashar), Mukunda (twentyafterfour) + CPT See Heterogeneous_deployment/Train_deploys#Breakage
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Petr Pchelko (Pchelolo)
  • Deploy MediaModeration on all production wikis. 608753
  • Enable kafka purges on wikitech 607590

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - European+American Version (secondary timeslot) Antoine (hashar), Mukunda (twentyafterfour) 1.35 schedule
group0 1.35.0-wmf.39
group1 1.35.0-wmf.38
group2 1.35.0-wmf.38->1.35.0-wmf.39
 UTC #
 PDT
ServicesGraphoid / Citoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) VulpesVulpes825 (VulpesVulpes825)
  • [config] 608853 Change the Simplified Chinese logo for Chinese Wikipedia
  • [config] 608124 Set $wgForceUIMsgAsContentMsg for Chinese Wikiquote, Wiktionary, Wikinews, Wikisource, Wikiversity and Wikibooks

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Thursday, July 02

 UTC #
(Wed)  PDT
Phabricator update Mukunda (twentyafterfour) HOLD: Window to update phabricator.wikimedia.org
 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Friday, July 03

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Saturday, July 04

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Week of July 06

Time Component Deployer Changes

Sunday, July 05

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Monday, July 06

 UTC #
 PDT
Wikimedia Portals Update Jan Drewniak (jan_drewniak) Weekly window for the portals page: https://www.wikipedia.org/
 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Wikidata Query Service weekly deploy Guillaume (gehel), Mathew (onimisionipe) ...
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesGraphoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Weekly Security deployment window Sam (Reedy), Scott (sbassett) Held deployment window for Security-team related deploys.
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Tuesday, July 07

 UTC #
(Mon)  PDT
es5 database master failover marostegui, jynus, kormat T255755
 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Puppet request window
(Max 6 patches)
Filippo (godog), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to Puppet change
 UTC #
 PDT
ServicesGraphoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Pre MediaWiki train sanity break No Deploys
 UTC #
 PDT
Mediawiki train - American+European Version Mukunda (twentyafterfour), James (James_F) 1.35 schedule
group0 1.35.0-wmf.39->1.35.0-wmf.40
group1 1.35.0-wmf.39
group2 1.35.0-wmf.39
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Wednesday, July 08

 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - American+European Version (secondary timeslot) Mukunda (twentyafterfour), James (James_F) 1.35 schedule
group0 1.35.0-wmf.40
group1 1.35.0-wmf.39->1.35.0-wmf.40
group2 1.35.0-wmf.39
 UTC #
 PDT
Train log triage with CPT Mukunda (twentyafterfour), James (James_F) + CPT See Heterogeneous_deployment/Train_deploys#Breakage
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - American+European Version Mukunda (twentyafterfour), James (James_F) 1.35 schedule
group0 1.35.0-wmf.40
group1 1.35.0-wmf.39->1.35.0-wmf.40
group2 1.35.0-wmf.39
 UTC #
 PDT
ServicesGraphoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Thursday, July 09

 UTC #
(Wed)  PDT
Phabricator update Mukunda (twentyafterfour) HOLD: Window to update phabricator.wikimedia.org
 UTC #
 PDT
ServicesCitoid / Zotero Marielle (Mvolz) See - Citoid
 UTC #
 PDT
European mid-day backport window
(Max 6 patches)
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - American+European Version (secondary timeslot) Mukunda (twentyafterfour), James (James_F) 1.35 schedule
group0 1.35.0-wmf.40
group1 1.35.0-wmf.40
group2 1.35.0-wmf.39->1.35.0-wmf.40
 UTC #
 PDT
Puppet request window
(Max 6 patches)
Filippo (godog), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to Puppet change
 UTC #
 PDT
ServicesGraphoid / ORES Aaron (halfak)), Andy (accraze) See Graphoid
 UTC #
 PDT
Morning backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Mediawiki train - American+European Version Mukunda (twentyafterfour), James (James_F) 1.35 schedule
group0 1.35.0-wmf.40
group1 1.35.0-wmf.40
group2 1.35.0-wmf.39->1.35.0-wmf.40
 UTC #
 PDT
Evening backport window
(Max 6 patches)
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Friday, July 10

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Saturday, July 11

 UTC #
 PDT
No deploys all day! See Deployments/Emergencies if things are broken. No Deploys

Upcoming events

Past deployments

See also