Deployments

Deployments
	Jump to current event Deployment calendar Long-term calendar; 1.42 Roadmap; Train overview; Archive; ; Blocking tasks (Current task); How to monitor errors; 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; ;

Release Engineering and SRE request that you follow the COVID-19 deployment recommendations.

Subscribe in Google Calendar via wikimedia.org_rudis09ii2mm5fk4hgdjeh1u64@group.calendar.google.com.
This may not include one-off windows. If there are differences, then the wiki page is canonical and correct.

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's deployments-calendar.json file]. Add thcipriani as a reviewer.
If you need help, contact Release Engineering on IRC at #wikimedia-releng ^connect; and ping Greg (greg-g) or Tyler (thcipriani).
Communicating: Deployments of new or major features should be announced on the Wikimedia blog, Tech News, and/or global MassMessage to relevant communities. Changes that are likely to affect cache behaviour, add new cookies, or utilize new database tables, should be announced on the ops mailing list first.
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 July 19

Amir is running refreshImageMetadata.php for commons on a screen in mwmaint2002 (phab:T275268)

Sunday, July 18

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, July 19

10:30–11:00 UTC #
03:30–04:00 PDT

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

11:00–12:00 UTC #
04:00–05:00 PDT

European mid-day backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)
Changes	Martaannaj, michaelcochez 703205 (deploy commands) - Add config for updated PropertySuggester beta cluster Requesting Developer (irc-nickname) Gerrit link to backport or config change

17:00–17:30 UTC #
10:00–10:30 PDT

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

18:00–19:00 UTC #
11:00–12:00 PDT

Morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)
Changes	Ariel Glenn (apergos) 705368 (deploy commands) - Add sanity check to newRevisionFromRowAndSlots 705346 (deploy commands) - prevent PageIdentity checks in RevisionStore from breaking xml dumps

20:00–21:00 UTC #
13:00–14:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

21:00–23:00 UTC #
14:00–16:00 PDT

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

23:00–00:00 UTC #
16:00–17:00 PDT

Evening backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)
Changes	Zabe (zabe) [config] 705498 (deploy commands) Add patroller group for ckbwiki [config] 705505 (deploy commands) Avoid using User::newFrom* methods Requesting Developer (irc-nickname) Gerrit link to backport or config change

02:00–03:00 UTC #
(Mon) 19:00–20:00 PDT

Branching MediaWiki, extensions, skins, and vendor – See Heterogeneous_deployment/Train_deploys
Deployer
Changes	Branch `wmf/1.37.0-wmf.15`

Tuesday, July 20

11:00–12:00 UTC #
04:00–05:00 PDT

European mid-day backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)
Changes	Sam (Phuedx), Clare (cjming) 704867 (deploy commands) Update config for language switching on pilot wikis DannyS712 (DannyS712) 705107 (deploy commands) Typo fix: "the the" -> "the" Zabe (zabe) [config] 705498 (deploy commands) Add patroller group for ckbwiki [config] 705505 (deploy commands) Avoid using User::newFrom* methods Martin (Urbanecm) [config] 704996 (deploy commands) otrs_wikiwiki: Update logo to use VRT instead of OTRS Requesting Developer (irc-nickname) Gerrit link to backport or config change

15:00–16:00 UTC #
08:00–09:00 PDT

Switch buffer re-partition - Eqiad Row D (network change)
Deployer	Cathal (topranks), Arzhel (XioNox)
Changes	No Deploys to servers in row D (if possible), will be brief network interruption.

16:00–17:00 UTC #
09:00–10:00 PDT

Puppet request window (Max 6 patches)
Deployer	JBond (jbond42), Reuven (rzl)
Changes	DannyS712 (DannyS712) 705096 (deploy commands) Typo fix: "the the" -> "the" Zabe (zabe) 705718 (deploy commands) scap: set sqldump to ensure => 'absent' 692370 (deploy commands) scap: Drop never-used 'sqldump' tool Requesting Developer (irc-nickname) Gerrit link to Puppet change

17:00–18:00 UTC #
10:00–11:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

18:00–19:00 UTC #
11:00–12:00 PDT

Pre MediaWiki train break
Deployer
Changes	No Deploys

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American Version

Deployer

Ahmon (dancy), Brennen (brennen)

Changes

1.37 schedule

group0	1.37.0-wmf.14->1.37.0-wmf.15
group1	1.37.0-wmf.14
group2	1.37.0-wmf.14

group0 to 1.37.0-wmf.15
Blockers: task T281156

23:00–00:00 UTC #
16:00–17:00 PDT

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

Wednesday, July 21

11:00–12:00 UTC #
04:00–05:00 PDT

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

18:00–19:00 UTC #
11:00–12:00 PDT

Morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)
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	Antoine (hashar), Ahmon (dancy) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American Version

Deployer

Antoine (hashar), Ahmon (dancy)

Changes

1.37 schedule

group0	1.37.0-wmf.15
group1	1.37.0-wmf.14->1.37.0-wmf.15
group2	1.37.0-wmf.14

group1 to 1.37.0-wmf.15
Blockers: task T281156

20:00–21:00 UTC #
13:00–14:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

23:00–00:00 UTC #
16:00–17:00 PDT

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

00:00–01:00 UTC #
(Wed) 17:00–18:00 PDT

Phabricator update
Deployer	Mukunda (twentyafterfour)
Changes	HOLD: Window to update phabricator.wikimedia.org

Thursday, July 22

10:00–11:00 UTC #
03:00–04:00 PDT

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

11:00–12:00 UTC #
04:00–05:00 PDT

EU 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), Lucas (Lucas_WMDE), Ariel (apergos), Daniel (duesen)
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

15:00–16:00 UTC #
08:00–09:00 PDT

Switch buffer re-partition - Eqiad Row C (network change)
Deployer	Cathal (topranks), Arzhel (XioNox)
Changes	No Deploys to servers in row C (if possible), will be brief network interruption.

16:00–17:00 UTC #
09:00–10:00 PDT

Puppet request window (Max 6 patches)
Deployer	JBond (jbond42), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

17:00–18:00 UTC #
10:00–11:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

18:00–19:00 UTC #
11:00–12:00 PDT

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

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American Version

Deployer

Ahmon (dancy), Brennen (brennen)

Changes

1.37 schedule

group0	1.37.0-wmf.15
group1	1.37.0-wmf.15
group2	1.37.0-wmf.14->1.37.0-wmf.15

group2 to 1.37.0-wmf.15
Blockers: task T281156

23:00–00:00 UTC #
16:00–17:00 PDT

US 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, July 23

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, July 24

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 July 26

Sunday, July 25

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, July 26

10:30–11:00 UTC #
03:30–04:00 PDT

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

11:00–12:00 UTC #
04:00–05:00 PDT

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

17:00–17:30 UTC #
10:00–10:30 PDT

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

18:00–19:00 UTC #
11:00–12:00 PDT

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

20:00–21:00 UTC #
13:00–14:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

21:00–23:00 UTC #
14:00–16:00 PDT

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

23:00–00:00 UTC #
16:00–17:00 PDT

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

02:00–03:00 UTC #
(Mon) 19:00–20:00 PDT

Branching MediaWiki, extensions, skins, and vendor – See Heterogeneous_deployment/Train_deploys
Deployer
Changes	Branch `wmf/1.37.0-wmf.16`

Tuesday, July 27

11:00–12:00 UTC #
04:00–05:00 PDT

European mid-day backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)
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 (jbond42), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

17:00–18:00 UTC #
10:00–11:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

18:00–19:00 UTC #
11:00–12:00 PDT

Pre MediaWiki train break
Deployer
Changes	No Deploys

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American+European Version

Deployer

Mukunda (twentyafterfour), Antoine (hashar)

Changes

1.37 schedule

group0	1.37.0-wmf.15->1.37.0-wmf.16
group1	1.37.0-wmf.15
group2	1.37.0-wmf.15

group0 to 1.37.0-wmf.16
Blockers: task T281157

23:00–00:00 UTC #
16:00–17:00 PDT

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

Wednesday, July 28

11:00–12:00 UTC #
04:00–05:00 PDT

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

13:00–15:00 UTC #
06:00–08:00 PDT

MediaWiki train - American+European Version (secondary timeslot)

Deployer

Mukunda (twentyafterfour), Antoine (hashar)

Changes

1.37 schedule

group0	1.37.0-wmf.16
group1	1.37.0-wmf.15->1.37.0-wmf.16
group2	1.37.0-wmf.15

group1 to 1.37.0-wmf.16
Blockers: task T281157

18:00–19:00 UTC #
11:00–12:00 PDT

Morning backport window Your patch may or may not be deployed at the sole discretion of the deployer (Max 6 patches)
Deployer	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)
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	Mukunda (twentyafterfour), Antoine (hashar) + CPT
Changes	See Heterogeneous_deployment/Train_deploys#Breakage

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American+European Version

Deployer

Mukunda (twentyafterfour), Antoine (hashar)

Changes

1.37 schedule

group0	1.37.0-wmf.16
group1	1.37.0-wmf.15->1.37.0-wmf.16
group2	1.37.0-wmf.15

group1 to 1.37.0-wmf.16
Blockers: task T281157

20:00–21:00 UTC #
13:00–14:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

23:00–00:00 UTC #
16:00–17:00 PDT

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

00:00–01:00 UTC #
(Wed) 17:00–18:00 PDT

Phabricator update
Deployer	Mukunda (twentyafterfour)
Changes	HOLD: Window to update phabricator.wikimedia.org

Thursday, July 29

10:00–11:00 UTC #
03:00–04:00 PDT

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

11:00–12:00 UTC #
04:00–05:00 PDT

EU 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), Lucas (Lucas_WMDE), Ariel (apergos), Daniel (duesen)
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

13:00–15:00 UTC #
06:00–08:00 PDT

MediaWiki train - American+European Version (secondary timeslot)

Deployer

Mukunda (twentyafterfour), Antoine (hashar)

Changes

1.37 schedule

group0	1.37.0-wmf.16
group1	1.37.0-wmf.16
group2	1.37.0-wmf.15->1.37.0-wmf.16

group2 to 1.37.0-wmf.16
Blockers: task T281157

16:00–17:00 UTC #
09:00–10:00 PDT

Puppet request window (Max 6 patches)
Deployer	JBond (jbond42), Reuven (rzl)
Changes	Requesting Developer (irc-nickname) Gerrit link to Puppet change

17:00–18:00 UTC #
10:00–11:00 PDT

Services – Graphoid / ORES
Deployer	Chris (chrisalbon), Andy (accraze)
Changes	See Graphoid

18:00–19:00 UTC #
11:00–12:00 PDT

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

19:00–21:00 UTC #
12:00–14:00 PDT

MediaWiki train - American+European Version

Deployer

Mukunda (twentyafterfour), Antoine (hashar)

Changes

1.37 schedule

group0	1.37.0-wmf.16
group1	1.37.0-wmf.16
group2	1.37.0-wmf.15->1.37.0-wmf.16

group2 to 1.37.0-wmf.16
Blockers: task T281157

23:00–00:00 UTC #
16:00–17:00 PDT

US 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, July 30

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, July 31

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