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Deployments
![]() | For the time being, Release Engineering and SRE request that you follow the Covid-19 deployment recommendations. |
- 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 |
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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)
- Is there a user-impacting or other severe issue?
- Communicate this in the #wikimedia-operations connect IRC channel.
- Add the #wikimedia-incident project to any relevant Phabricator task; if appropriate set to UBN! priority.
- What happens next?
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.
![]() | For the time being, Release Engineering and SRE request that you follow the Covid-19 deployment recommendations. |
Week of June 08
Time | Component | Deployer | Changes | ||||||
---|---|---|---|---|---|---|---|---|---|
Sunday, June 07 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys | |||||||
Monday, June 08 | |||||||||
– 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) | tgr
Lucas Werkmeister (lucaswerkmeister)
Requesting Developer (irc-nickname)
| ||||||
– 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) | Petr Pchelko (Pchelolo)
RoanKattouw
Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Services – Graphoid / 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)
| ||||||
Tuesday, June 09 | |||||||||
– UTC # – PDT |
European Mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Ammar Abdulhamid (Ammarpad)
Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Puppet request window (Max 6 patches) |
Filippo (godog), Giuseppe (_joe_) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / ORES | Aaron (halfak)), Andy (accraze) | See Graphoid | ||||||
– UTC # – PDT |
Pre MediaWiki train sanity break | No Deploys | |||||||
– UTC # – PDT |
Mediawiki train - American+European Version | Jeena (longma), Lars (liw) | 1.35 schedule
| ||||||
– UTC # – PDT |
Evening backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Samuel (RhinosF1)
Requesting Developer (irc-nickname)
| ||||||
Wednesday, June 10 | |||||||||
– UTC # – PDT |
European Mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Mediawiki train - American+European Version (secondary timeslot) | Jeena (longma), Lars (liw) | 1.35 schedule
| ||||||
– UTC # – PDT |
Moving CDN purges to kafka | _joe_, Pchelolo | Petr Pchelko (Pchelolo)
| ||||||
– UTC # – PDT |
Train log triage with CPT | Jeena (longma), Lars (liw) + CPT | See Heterogeneous_deployment/Train_deploys#Breakage | ||||||
– UTC # – PDT |
Morning backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Bartosz (MatmaRex)
Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Mediawiki train - American+European Version | Jeena (longma), Lars (liw) | 1.35 schedule
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / ORES | Aaron (halfak)), Andy (accraze) | See Graphoid | ||||||
– UTC # – PDT |
Evening backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Jdlrobson
Requesting Developer (irc-nickname)
| ||||||
Thursday, June 11 | |||||||||
– UTC # (Wed) – PDT |
Phabricator update | Mukunda (twentyafterfour) | HOLD: Window to update phabricator.wikimedia.org | ||||||
– UTC # – PDT |
European Mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Matthias (matthiasmullie)
Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Mediawiki train - American+European Version (secondary timeslot) | Jeena (longma), Lars (liw) | 1.35 schedule
| ||||||
– UTC # – PDT |
Puppet request window (Max 6 patches) |
Filippo (godog), Giuseppe (_joe_) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / 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)
| ||||||
– UTC # – PDT |
Mediawiki train - American+European Version | Jeena (longma), Lars (liw) | 1.35 schedule
| ||||||
– UTC # – PDT |
Evening backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
Friday, June 12 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys | |||||||
Saturday, June 13 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys |
Week of June 15
Time | Component | Deployer | Changes | ||||||
---|---|---|---|---|---|---|---|---|---|
Sunday, June 14 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys | |||||||
Monday, June 15 | |||||||||
– 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)
| ||||||
– 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)
| ||||||
– UTC # – PDT |
Services – Graphoid / 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)
| ||||||
Tuesday, June 16 | |||||||||
– UTC # – PDT |
European mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Pre MediaWiki train sanity break | No Deploys | |||||||
– UTC # – PDT |
Mediawiki train - European+American Version | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Puppet request window (Max 6 patches) |
Filippo (godog), Giuseppe (_joe_) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / 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)
| ||||||
– UTC # – PDT |
Mediawiki train - European+American Version (secondary timeslot) | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Evening backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
Wednesday, June 17 | |||||||||
– UTC # – PDT |
European mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Pre MediaWiki train sanity break | No Deploys | |||||||
– UTC # – PDT |
Mediawiki train - European+American Version | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Train log triage with CPT | Lars (liw), Brennen (brennen) + 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)
| ||||||
– UTC # – PDT |
Mediawiki train - European+American Version (secondary timeslot) | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / 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)
| ||||||
Thursday, June 18 | |||||||||
– UTC # (Wed) – PDT |
Phabricator update | Mukunda (twentyafterfour) | HOLD: Window to update phabricator.wikimedia.org | ||||||
– UTC # – PDT |
European mid-day backport window (Max 6 patches) |
Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Pre MediaWiki train sanity break | No Deploys | |||||||
– UTC # – PDT |
Mediawiki train - European+American Version | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Puppet request window (Max 6 patches) |
Filippo (godog), Giuseppe (_joe_) | Requesting Developer (irc-nickname)
| ||||||
– UTC # – PDT |
Services – Graphoid / Citoid / 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)
| ||||||
– UTC # – PDT |
Mediawiki train - European+American Version (secondary timeslot) | Lars (liw), Brennen (brennen) | 1.35 schedule
| ||||||
– UTC # – PDT |
Evening backport window (Max 6 patches) |
Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm) | Requesting Developer (irc-nickname)
| ||||||
Friday, June 19 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys | |||||||
Saturday, June 20 | |||||||||
– UTC # – PDT |
No deploys all day! See Deployments/Emergencies if things are broken. | No Deploys |