Deployments

Deployments
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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.
• 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 May 30

Sunday, May 29

07:00–07:00 UTC #
00:00–00:00 PDT

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

Monday, May 30

07:00–08:00 UTC #
00:00–01:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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	Stang (koi) [config] 799415 (deploy commands) Add language fallback support for wmgSiteLogoVariants Requesting Developer (irc-nickname) Gerrit link to backport or config change

15:30–16:00 UTC #
08:30–09:00 PDT

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

17:00–17:30 UTC #
10:00–10:30 PDT

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

21:00–23:00 UTC #
14:00–16:00 PDT

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

01:00–02:00 UTC #
(Mon) 18:00–19:00 PDT

Automatic branching of MediaWiki, extensions, skins, and vendor – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Branch wmf/1.39.0-wmf.14

06:00–06:30 UTC #
(Mon) 23:00–23:30 PDT

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

Tuesday, May 31

07:00–08:00 UTC #
00:00–01:00 PDT

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_) Done [config] 800833 (deploy commands) testwiki: Enable Section Translation in 10 Wikipedias Amir E. Aharoni (Amire80) (aharoni) Done [wmf.13] 801195 (deploy commands) Fix Tyap (kcg) namespace names Sharvani Haran (sharvani_) Done [config] 801018 (deploy commands) Stream config for android breadcrumbs schema

08:00–09:00 UTC #
01:00–02:00 PDT

Custom deployment window for session handling fix
Deployer	Gergő (tgr)
Changes	799388 (deploy commands) Tombstone the old session on SessionBackend::resetId() See T299193#7954643 for context.

13:00–14:00 UTC #
06:00–07:00 PDT

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	Stang (koi) [config] 801420 (deploy commands) zhwiktionary: Create namespace "Thesaurus" and "Citations" [config] 801403 (deploy commands) enwiki: Regenerate inconsistent logo-1x Gerrit link to backport or config change Requesting Developer (irc-nickname) Gerrit link to backport or config change

16:00–17:00 UTC #
09:00–10:00 PDT

Puppet request window (Max 6 patches)
Deployer	JBond (jbond), Reuven (rzl)
Changes	Lucas Werkmeister (Lucas_WMDE)  799297 (deploy commands) query service: don’t cache index files Gergő (tgr) 800683 (deploy commands) Log output of scheduled MediaWiki maintenance scripts Requesting Developer (irc-nickname) Gerrit link to Puppet change

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Jeena (jeena), Ahmon (dancy)
Changes	1.39 schedule group0 1.39.0-wmf.13->1.39.0-wmf.14 group1 1.39.0-wmf.13 group2 1.39.0-wmf.13 group0 to 1.39.0-wmf.14 Blockers: task T308067

20:00–21:00 UTC #
13:00–14:00 PDT

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)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change AGueyte (AnaisGueyte) [config] 789250 (deploy commands) Add SimilarEditors extension – I: Add to i18n [config] 793500 (deploy commands) Add SimilarEditors extension – II: Add to InitialiseSettings, default off [config] 793501 (deploy commands) Add SimilarEditors extension – III: Add to CommonSettings [config] 799012 (deploy commands) Deploy SimilarEditors to the beta cluster [config] 799378 (deploy commands) Assign similareditors right to the checkuser group [config] 787793 (deploy commands) Add QuickSurveys survey for the SimilarEditors feature Martin (Urbanecm) [config] 801811 (deploy commands) Do not load SimilarEditors if QuickSurveys is not installed

Wednesday, June 1

07:00–08:00 UTC #
00:00–01:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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

18:00–19:00 UTC #
11:00–12:00 PDT

Train log triage with CPT
Deployer	Jeena (jeena), Ahmon (dancy) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Jeena (jeena), Ahmon (dancy)
Changes	1.39 schedule group0 1.39.0-wmf.14 group1 1.39.0-wmf.13->1.39.0-wmf.14 group2 1.39.0-wmf.13 group1 to 1.39.0-wmf.14 Blockers: task T308067

20:00–21:00 UTC #
13:00–14:00 PDT

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)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change zabe Done [config] 800278 (deploy commands) Start writing to cuc_actor everywhere except s4 and s8

06:00–06:30 UTC #
(Wed) 23:00–23:30 PDT

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

Thursday, June 2

07:00–08:00 UTC #
00:00–01:00 PDT

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)
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

10:00–11:00 UTC #
03:00–04:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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	Bartosz (MatmaRex) [config] 802214 (deploy commands) Enable DiscussionTools automatic topic subscriptions as beta feature on remaining wikis [config] 801818 (deploy commands) Launch DiscussionTools topic subscriptions a/b test Stang (koi) [config] 802498 (deploy commands) itwikiversity: Correct typo of "markbotedits" Requesting Developer (irc-nickname) Gerrit link to backport or config change

16:00–17:00 UTC #
09:00–10:00 PDT

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

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Jeena (jeena), Ahmon (dancy)
Changes	1.39 schedule group0 1.39.0-wmf.14 group1 1.39.0-wmf.14 group2 1.39.0-wmf.13->1.39.0-wmf.14 group2 to 1.39.0-wmf.14 Blockers: task T308067

20:00–21:00 UTC #
13:00–14:00 PDT

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)
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, June 3

07:00–07:00 UTC #
00:00–00:00 PDT

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

Saturday, June 4

07:00–07:00 UTC #
00:00–00:00 PDT

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

Week of June 06

Sunday, June 5

07:00–07:00 UTC #
00:00–00:00 PDT

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

Monday, June 6

07:00–08:00 UTC #
00:00–01:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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

15:30–16:00 UTC #
08:30–09:00 PDT

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

17:00–17:30 UTC #
10:00–10:30 PDT

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

20:00–21:00 UTC #
13:00–14:00 PDT

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)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

21:00–23:00 UTC #
14:00–16:00 PDT

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

01:00–02:00 UTC #
(Mon) 18:00–19:00 PDT

Automatic branching of MediaWiki, extensions, skins, and vendor – see Heterogeneous_deployment/Train_deploys
Deployer	N/A
Changes	Branch wmf/1.39.0-wmf.15

06:00–06:30 UTC #
(Mon) 23:00–23:30 PDT

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

Tuesday, June 7

07:00–08:00 UTC #
00:00–01:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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

16:00–17:00 UTC #
09:00–10:00 PDT

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

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Dan (dduvall), Jeena (jeena)
Changes	1.39 schedule group0 1.39.0-wmf.14->1.39.0-wmf.15 group1 1.39.0-wmf.14 group2 1.39.0-wmf.14 group0 to 1.39.0-wmf.15 Blockers: task T308068

20:00–21:00 UTC #
13:00–14:00 PDT

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)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Wednesday, June 8

07:00–08:00 UTC #
00:00–01:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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

18:00–19:00 UTC #
11:00–12:00 PDT

Train log triage with CPT
Deployer	Dan (dduvall), Jeena (jeena) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Dan (dduvall), Jeena (jeena)
Changes	1.39 schedule group0 1.39.0-wmf.15 group1 1.39.0-wmf.14->1.39.0-wmf.15 group2 1.39.0-wmf.14 group1 to 1.39.0-wmf.15 Blockers: task T308068

20:00–21:00 UTC #
13:00–14:00 PDT

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)
Changes	Requesting Developer (irc-nickname) Gerrit link to backport or config change

06:00–06:30 UTC #
(Wed) 23:00–23:30 PDT

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

Thursday, June 9

07:00–08:00 UTC #
00:00–01:00 PDT

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)
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

10:00–11:00 UTC #
03:00–04:00 PDT

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

13:00–14:00 UTC #
06:00–07:00 PDT

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

16:00–17:00 UTC #
09:00–10:00 PDT

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

18:00–20:00 UTC #
11:00–13:00 PDT

MediaWiki train - Utc-7 Version
Deployer	Dan (dduvall), Jeena (jeena)
Changes	1.39 schedule group0 1.39.0-wmf.15 group1 1.39.0-wmf.15 group2 1.39.0-wmf.14->1.39.0-wmf.15 group2 to 1.39.0-wmf.15 Blockers: task T308068

20:00–21:00 UTC #
13:00–14:00 PDT

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)
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, June 10

07:00–07:00 UTC #
00:00–00:00 PDT

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

Saturday, June 11

07:00–07:00 UTC #
00:00–00:00 PDT

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