Deployments

Deployments
Jump to current event Deployment calendar Long-term calendar 1.39 Roadmap Train overview Archive Blocking tasks (Current task) Holding the train 🚨 Emergencies How to deploy code Heterogeneous deployment Train deploys Backport windows How to deploy backports Backport vs Train vs Special Window Train vs Backport Special Windows Backport windows

This page tracks upcoming deployments of software to the Wikimedia Foundation servers.

• Cadence: MediaWiki follows a weekly deploy cadence known as the Deployment Train, except for backports. For other services, teams decide their own schedule.
• Schedule: Generally use Backport windows instead of scheduling new windows. But, long running tasks and others things covered by Inclusion criteria do require their own windows. When creating windows, schedule more time than you think you need, to account for issues that might slow you down. One hour is best for most things.
• Requesting a change: Add your username and URL to Gerrit patch in the backport window you want to utilize in the table below. When requesting a change you must be present in the wikimedia-operations IRC channel at the given time and setup with the WikimediaDebug tool.
• Times are pinned to San Francisco, and thus the UTC time changes in March and November due to the DST.
• To add or remove your name from the list, or to schedule a new recurring deploy window, send a patchset to mediawiki/tools/release.git's deployments-calendar.yaml file. Add thcipriani as a reviewer.
• If you need help, contact Release Engineering on IRC at #wikimedia-releng ^connect; and ping Tyler (thcipriani).
• Communicating to engineers: Changes that are likely to affect cache behavior, add new cookies, or utilize new database tables, should be announced on the ops mailing list first. Also consider writing a technical blog post about your efforts.
• Communicating to movement: Deployments of new or major features should be announced on Tech News, and/or as a global MassMessage to relevant communities, and/or in other applicable venues.
• Something went wrong? See Incident response. Is there a user-impacting problem? Communicate in the #wikimedia-operations ^connect IRC channel. If there is a Phabricator task, ensure #Wikimedia-Incident is tagged, and consider setting the Unbreak Now priority.
• For information about the current status of the versions deployed to the various wikis, see https://versions.toolforge.org/
• The deployment commands helper can assist with which commands to run, including how to revert your changeː https://deploy-commands.toolforge.org/

Week of December 05

Sunday, December 4

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys

Monday, December 5

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Kartik Mistry (kart_) [config] 862412 (deploy commands) testwiki: Enable Section Translation for 15 Wikipedias [config] 863097 (deploy commands) Enable Section Translation on 8 Wikipedias Kosta Harlan (kostajh) [wmf.12] 864666 (deploy commands) Fix ExpensiveUserImpact input validation [config] 859991 (deploy commands) GrowthExperiments: End imagerecommendation experiment [wmf.12] 864712 (deploy commands) User impact: Show discovery tour to desktop users who had old module [wmf.12] 864713 (deploy commands) User impact: Show discovery notice to mobile users Requesting Developer (irc-nickname) Gerrit link to backport or config change

13:30–14:00 UTC #
05:30–06:00 PST

Run fixMergeHistoryCorruption.php (T302486)
Deployer	Sammy (TheresNoTime)
Changes	Run mwscript maintenance/fixMergeHistoryCorruption.php --wiki enwiki --ns 828 --delete

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	guerganaWMDE [config] 862247 (deploy commands) Add Property (120) to Wikidata content Namespace Stang (cirno) [config, no-op] 863467 (deploy commands) logos: icon could be not square [config] 864766 (deploy commands) trwiki: Add 20 years celebration logos [config] 863441 (deploy commands) beta: Set wgPageTriageEnableEnglishWikipediaFeatures to False Requesting Developer (irc-nickname) Gerrit link to backport or config change

16:30–17:00 UTC #
08:30–09:00 PST

Wikimedia Portals Update
Deployer	Jan Drewniak (jan_drewniak)
Changes	Weekly window for the portals page: https://www.wikipedia.org/

18:00–18:30 UTC #
10:00–10:30 PST

Wikidata Query Service weekly deploy
Deployer	Ryan (ryankemper)
Changes	...

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Bartosz (MatmaRex) [config] 856552 (deploy commands) Use new DiscussionTools heading markup on group0 wikis [wmf.12] 864724 (deploy commands) Adjust to changes to redlink behavior from parsoid Requesting Developer (irc-nickname) Gerrit link to backport or config change

22:00–00:00 UTC #
14:00–16:00 PST

Weekly Security deployment window
Deployer	Sam (Reedy), Scott (sbassett), Maryum (Maryum), Manfredi (manfredi)
Changes	Held deployment window for Security-team related deploys.

03:00–04:00 UTC #
(Mon) 19:00–20:00 PST

Automatic branching of MediaWiki, extensions, skins, and vendor – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Branch wmf/1.40.0-wmf.13

04:00–05:00 UTC #
(Mon) 20:00–21:00 PST

Automatic deployment of of MediaWiki, extensions, skins, and vendor to testwikis only – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Deploy wmf/1.40.0-wmf.13 to testwikis

07:00–07:30 UTC #
(Mon) 23:00–23:30 PST

Primary database switchover
Deployer	Stevie Beth Mhaol (kormat), Manuel Arostegui (marostegui), Amir (Amir1)
Changes	Held deployment window for database primary masters maintenance

Tuesday, December 6

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

14:00–15:00 UTC #
06:00–07:00 PST

Mobileapps/RESTBase/Wikifeeds
Deployer	Content Transform Team
Changes	Content transform team node services (mobileapps/wikifeeds)

17:00–18:00 UTC #
09:00–10:00 PST

Puppet request window (Max 6 patches)
Deployer	JBond (jbond), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-7 Version
Deployer	Chad (^demon), Ahmon (dancy)
Changes	1.40 schedule group0 1.40.0-wmf.12->1.40.0-wmf.13 group1 1.40.0-wmf.12 group2 1.40.0-wmf.12 group0 to 1.40.0-wmf.13 Blockers: task T320518

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Wednesday, December 7

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

19:00–20:00 UTC #
11:00–12:00 PST

Train log triage with CPT
Deployer	Chad (^demon), Ahmon (dancy) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-7 Version
Deployer	Chad (^demon), Ahmon (dancy)
Changes	1.40 schedule group0 1.40.0-wmf.13 group1 1.40.0-wmf.12->1.40.0-wmf.13 group2 1.40.0-wmf.12 group1 to 1.40.0-wmf.13 Blockers: task T320518

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

07:00–07:30 UTC #
(Wed) 23:00–23:30 PST

Primary database switchover
Deployer	Stevie Beth Mhaol (kormat), Manuel Arostegui (marostegui), Amir (Amir1)
Changes	Held deployment window for database primary masters maintenance

Thursday, December 8

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport and config training Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Ariel (apergos), Jaime (jnuche)
Changes	Training to do backport and config deployment. To sign up for deployment training use the Deployment Training Request phabricator milestone Requesting Developer (irc-nickname) Gerrit link to backport or config change

11:00–12:00 UTC #
03:00–04:00 PST

Services – Citoid / Zotero
Deployer	Marielle (mvolz)
Changes	See Citoid

14:00–15:00 UTC #
06:00–07:00 PST

Mobileapps/RESTBase/Wikifeeds
Deployer	Content Transform Team
Changes	Content transform team node services (mobileapps/wikifeeds)

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

17:00–18:00 UTC #
09:00–10:00 PST

Puppet request window (Max 6 patches)
Deployer	JBond (jbond), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

18:00–19:00 UTC #
10:00–11:00 PST

Technical Engagement weekly deploy (Toolhub, Developer portal, Striker)
Deployer	bd808
Changes	...

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-7 Version
Deployer	Chad (^demon), Ahmon (dancy)
Changes	1.40 schedule group0 1.40.0-wmf.13 group1 1.40.0-wmf.13 group2 1.40.0-wmf.12->1.40.0-wmf.13 group2 to 1.40.0-wmf.13 Blockers: task T320518

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport and config training Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Brennen (brennen), Sammy (TheresNoTime)
Changes	Training to do backport and config deployment. To sign up for deployment training use the Deployment Training Request phabricator milestone Requesting Developer (irc-nickname) Gerrit link to backport or config change

Friday, December 9

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys

Saturday, December 10

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys

Week of December 12

Sunday, December 11

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys

Monday, December 12

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

16:30–17:00 UTC #
08:30–09:00 PST

Wikimedia Portals Update
Deployer	Jan Drewniak (jan_drewniak)
Changes	Weekly window for the portals page: https://www.wikipedia.org/

18:00–18:30 UTC #
10:00–10:30 PST

Wikidata Query Service weekly deploy
Deployer	Ryan (ryankemper)
Changes	...

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

22:00–00:00 UTC #
14:00–16:00 PST

Weekly Security deployment window
Deployer	Sam (Reedy), Scott (sbassett), Maryum (Maryum), Manfredi (manfredi)
Changes	Held deployment window for Security-team related deploys.

03:00–04:00 UTC #
(Mon) 19:00–20:00 PST

Automatic branching of MediaWiki, extensions, skins, and vendor – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Branch wmf/1.40.0-wmf.14

04:00–05:00 UTC #
(Mon) 20:00–21:00 PST

Automatic deployment of of MediaWiki, extensions, skins, and vendor to testwikis only – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Deploy wmf/1.40.0-wmf.14 to testwikis

07:00–07:30 UTC #
(Mon) 23:00–23:30 PST

Primary database switchover
Deployer	Stevie Beth Mhaol (kormat), Manuel Arostegui (marostegui), Amir (Amir1)
Changes	Held deployment window for database primary masters maintenance

Tuesday, December 13

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

09:00–11:00 UTC #
01:00–03:00 PST

MediaWiki train - Utc-0+Utc-7 Version
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.13->1.40.0-wmf.14 group1 1.40.0-wmf.13 group2 1.40.0-wmf.13 group0 to 1.40.0-wmf.14 Blockers: task T320519

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

14:00–15:00 UTC #
06:00–07:00 PST

Mobileapps/RESTBase/Wikifeeds
Deployer	Content Transform Team
Changes	Content transform team node services (mobileapps/wikifeeds)

17:00–18:00 UTC #
09:00–10:00 PST

Puppet request window (Max 6 patches)
Deployer	JBond (jbond), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-0+Utc-7 Version (secondary timeslot)
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.13->1.40.0-wmf.14 group1 1.40.0-wmf.13 group2 1.40.0-wmf.13 group0 to 1.40.0-wmf.14 Blockers: task T320519

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Wednesday, December 14

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Martin (Urbanecm)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

09:00–11:00 UTC #
01:00–03:00 PST

MediaWiki train - Utc-0+Utc-7 Version
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.14 group1 1.40.0-wmf.13->1.40.0-wmf.14 group2 1.40.0-wmf.13 group1 to 1.40.0-wmf.14 Blockers: task T320519

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

19:00–20:00 UTC #
11:00–12:00 PST

Train log triage with CPT
Deployer	Antoine (hashar), Chad (^demon) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-0+Utc-7 Version (secondary timeslot)
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.14 group1 1.40.0-wmf.13->1.40.0-wmf.14 group2 1.40.0-wmf.13 group1 to 1.40.0-wmf.14 Blockers: task T320519

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Martin (Urbanecm), Clare (cjming), Sammy (TheresNoTime), Stef (kindrobot)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

07:00–07:30 UTC #
(Wed) 23:00–23:30 PST

Primary database switchover
Deployer	Stevie Beth Mhaol (kormat), Manuel Arostegui (marostegui), Amir (Amir1)
Changes	Held deployment window for database primary masters maintenance

Thursday, December 15

08:00–09:00 UTC #
00:00–01:00 PST

UTC morning backport and config training Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Ariel (apergos), Jaime (jnuche)
Changes	Training to do backport and config deployment. To sign up for deployment training use the Deployment Training Request phabricator milestone Requesting Developer (irc-nickname) Gerrit link to backport or config change

09:00–11:00 UTC #
01:00–03:00 PST

MediaWiki train - Utc-0+Utc-7 Version
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.14 group1 1.40.0-wmf.14 group2 1.40.0-wmf.13->1.40.0-wmf.14 group2 to 1.40.0-wmf.14 Blockers: task T320519

11:00–12:00 UTC #
03:00–04:00 PST

Services – Citoid / Zotero
Deployer	Marielle (mvolz)
Changes	See Citoid

14:00–15:00 UTC #
06:00–07:00 PST

Mobileapps/RESTBase/Wikifeeds
Deployer	Content Transform Team
Changes	Content transform team node services (mobileapps/wikifeeds)

14:00–15:00 UTC #
06:00–07:00 PST

UTC afternoon backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Lucas (Lucas_WMDE), Martin (Urbanecm), Adam (awight)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

17:00–18:00 UTC #
09:00–10:00 PST

Puppet request window (Max 6 patches)
Deployer	JBond (jbond), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

18:00–19:00 UTC #
10:00–11:00 PST

Technical Engagement weekly deploy (Toolhub, Developer portal, Striker)
Deployer	bd808
Changes	...

19:00–21:00 UTC #
11:00–13:00 PST

MediaWiki train - Utc-0+Utc-7 Version (secondary timeslot)
Deployer	Antoine (hashar), Chad (^demon)
Changes	1.40 schedule group0 1.40.0-wmf.14 group1 1.40.0-wmf.14 group2 1.40.0-wmf.13->1.40.0-wmf.14 group2 to 1.40.0-wmf.14 Blockers: task T320519

21:00–22:00 UTC #
13:00–14:00 PST

UTC late backport and config training Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Brennen (brennen), Sammy (TheresNoTime)
Changes	Training to do backport and config deployment. To sign up for deployment training use the Deployment Training Request phabricator milestone Requesting Developer (irc-nickname) Gerrit link to backport or config change

Friday, December 16

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys

Saturday, December 17

08:00–08:00 UTC #
00:00–00:00 PST

No deploys all day! See Deployments/Emergencies if things are broken.
Deployer
Changes	No Deploys