Deployments

Some notes about the deployment windows

• It is good to ask for a little more time than what you think you'll need to do all of the deployment and testing; you never know what issues will come up and slow you down.
  • Generally, we have found two-hour windows 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.
• If your deployment is simple, quick, and low risk (as assessed by you, your team, and the Release Manager) you can sign up for a "SWAT deploy" which is a twice-daily (except Fridays) 30 minute window for those quick, simple, and low risk deploys. Please read the corresponding SWAT deploys page on how to use these.

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

This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia project wikis (Wikipedias, Wiktionaries, Wikiversities, Wikimedia Commons, etc.).

Cadence

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). You can see the current cadence, including which wikis are updated on what days, on the /One week page.

Scheduling

To schedule a deploy window, or if you see a potential conflict with your upcoming deployment, please e-mail Greg Grossmeier (or catch him on IRC, his nickname is greg-g).

Inclusion criteria

See the list at Inclusion criteria for the kinds of changes that require scheduling here.

Communicating

Every major or new feature deployment should be announced on the Wikimedia blog and/or Tech News and/or global on-wiki delivery; you can ask Guillaume Paumier for support, including if you're not sure what channel(s) to use. 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.

Near-term

Week of December 8th

Week of

• Fundraising throughout the month
• HHVM: reimaging servers, should be completed by EOY

By day

Time	Component	Deployer	Changes
Monday, December 08
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	James (James_F) [wmf10] VisualEditor copy-paste fix 178010 (deploy commands) [wmf11] VisualEditor copy-paste fix 178009 (deploy commands) Requesting developer (irc handle) Gerrit link to backport or config change
21:00–22:00 UTC # 13:00–14:00 PST	Parsoid/OCG	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
Tuesday, December 09
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Kaldari (kaldari) [wmf11] 177942 (deploy commands) Rewriting WikiGrok more info copy and changing None button to neutral MaxSem [config] Reenable gadget caching Roan (RoanKattouw) [wmf10] VisualEditor bug fix 178371 (deploy commands) [wmf11] VisualEditor bug fix 178372 (deploy commands) aude [wmf10] Fix lua issue in Wikidata 178374 (deploy commands) [wmf11] Fix lua issue in Wikidata 178375 (deploy commands)
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	aude Done 178534 (deploy commands) [wmf11] - Fix issue with json dumps and improve sites caching. gi11es Done [wmf10] Fix for broken thumbnails when the file width is in $wgThumbnailBucket 178529 (deploy commands) Done [wmf11] Fix for broken thumbnails when the file width is in $wgThumbnailBucket 178531 (deploy commands) Requesting developer (irc handle) Gerrit link to backport or config change
18:00–20:00 UTC # 10:00–12:00 PST	Mobile Web	Max Semenik (maxsem) / Kaldari (kaldari)	Hold.
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Sam (Reedy) or Greg (greg-g)	1.25 schedule group0 1.25wmf11 group1 1.25wmf10->1.25wmf11 group2 1.25wmf10 group1 to 1.25wmf11: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, December 10
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Matt Flaschen (superm401) Done [wmf10] WikimediaEvents experiment to assess sendBeacon support and reliability 178412 (deploy commands) Done [wmf11] WikimediaEvents experiment to assess sendBeacon support and reliability 178414 (deploy commands) Sam (Reedy)/Brad (Anomie) Done 178668 (deploy commands) API: Don't use an empty LinkBatch in ApiOpenSearch (fixes DB error) Erik B (ebernhardson) Done [config] 178718 (deploy commands) Enable subpages on Archive_talk of officewiki Ori (ori) Done [config] 178729 (deploy commands) Set $wgWMEStatsdBaseUri for WikimediaEvents / statsv Done [wmf11] 178728 (deploy commands) WikimediaEvents code for statsd Done [wmf11] 178733 (deploy commands) VisualEditor code for statsd
15:00–16:00 UTC # 07:00–08:00 PST	Phabricator update	Chase (chasemp)	HOLD: Window to update phabricator.wikimedia.org
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	Requesting developer (irc handle) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Sam (Reedy) or Greg (greg-g)	1.25 schedule group0 1.25wmf11->1.25wmf12 group1 1.25wmf11 group2 1.24wmf10->1.25wmf11 group2 to 1.25wmf11 (all Wikipedias) group0 to 1.25wmf12 (test/test2/testwikidata/mediawiki)
21:00–22:00 UTC # 13:00–14:00 PST	Parsoid/OCG	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
Thursday, December 11
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Requesting developer (irc handle) Gerrit link to backport or config change MaxSem [config] Enable MobileFrontend on wikidata.org reverted [config] Reenable WikiGrok UI on enwiki N Not done Kaldari (kaldari) [wmf11] 179001 (deploy commands) Fixing query string override for loading WikiGrok on en.wiki [wmf12] 178998 (deploy commands) Fixing query string override for loading WikiGrok on en.wiki [wmf11] 179009 (deploy commands) Promoting WikiGrok to stable and disabling for anons (with flag) Superm401 (superm401) [wmf11 and wmf12] 179016 (deploy commands), 179018 (deploy commands) (Fixing sendBeacon experiment) [wmf11] 179020 (deploy commands) (Fix new topic notifications not displaying) [wmf11] 179014 (deploy commands) (Allow moment on mobile web)
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	Requesting developer (irc handle) Gerrit link to backport or config change bd808 (bd808) 178978 (deploy commands) Configure logging to use MWLoggerMonologSpi Matt Flaschen (superm401) [wmf11] SendBeaconReliability bug fix (179044 (deploy commands)) [wmf12] SendBeaconReliability bug fix (179045 (deploy commands)) Marius (hoo) 179008 (deploy commands) Compute $wgWBClientSettings['excludeNamespaces'] on demand
20:00–21:00 UTC # 12:00–13:00 PST	CentralNotice	Adam (awight), Andrew (AndyRussG)	* 178423 (deploy commands) Make Special:HideBanners set a P3P header for IE
Friday, December 12
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Kaldari (kaldari) [wmf11] 179300 (deploy commands) WikiGrok: Fix EventLogging of responses when correct is null [wmf12] 179297 (deploy commands) WikiGrok: Fix EventLogging of responses when correct is null [wmf11] 179334 (deploy commands) MobileFrontend: Use correct API parameter to avoid search JS exceptions [wmf12] 179335 (deploy commands) MobileFrontend: Use correct API parameter to avoid search JS exceptions MaxSem [config] MobileFrontend on Wikidata

Near-term

Week of December 15th

Week of

• Fundraising throughout the month
• HHVM: reimaging servers, should be completed by EOY

By day

Time	Component	Deployer	Changes
Monday, December 15
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	aude 179906 (deploy commands) [wmf12] - Update test.wikidata (fixes/polish for changes to the site link section, and performance improvements for page views). 179469 (deploy commands) - Update entity suggester blacklist config. gi11es 179918 (deploy commands) 179921 (deploy commands) [wmf11] - Track the most recent upload time for performance events (Media Viewer) marktraceur 179934 (deploy commands) [wmf11] Fix Flickr imports in UploadWizard 179936 (deploy commands) [wmf12] Fix Flickr imports in UploadWizard Requesting developer (irc handle) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Monolog logging config	bd808 (bd808)	Deploy Monolog logging configuration for testwiki (179368 (deploy commands), 179369 (deploy commands), 179370 (deploy commands))
21:00–22:00 UTC # 13:00–14:00 PST	Parsoid/OCG	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
Tuesday, December 16
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Matt Flaschen (superm401) 179981 (deploy commands) Set EventLogging for Flow true in config (currently it's defaulted true in Flow repo, but that will change) Erik B (ebernhardson) [wmf12] 180043 (deploy commands) Pass the correct properties on to EventLogging, stripping unrelated data. MaxSem [config] Disable section collapsing on mobile Wikidata Yurik 179357 (deploy commands) - redirect calculation for zero.wp -> m.wp for zero users Requesting developer (irc handle) Gerrit link to backport or config change
01:00–02:00 UTC # (Mon) 17:00–18:00 PST	Zero team	yurik	* 179357 (deploy commands) - redirect calculation for zero.wp -> m.wp for zero users (branches - 180088 (deploy commands), 180089 (deploy commands)) 180029 (deploy commands) - ZeroPortal config editing
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	Brad (anomie) Done gerrit:179168 Enable $wgExtractsExtendOpenSearchXml aude Done 180187 (deploy commands) [wmf12] Fix focus when editing on test.wikidata + 2 misc smallish changes. Nikerabbot Done 180201 (deploy commands) [wmf12] Translate: Revert "Request csrf tokens in JS when supported" Requesting developer (irc handle) Gerrit link to backport or config change
18:00–20:00 UTC # 10:00–12:00 PST	Mobile Web	Max Semenik (maxsem) / Kaldari (kaldari)	Hold.
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Mukunda (twentyafterfour)	1.25 schedule group0 1.25wmf12 group1 1.25wmf11->1.25wmf12 group2 1.25wmf11 group1 to 1.25wmf12: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)
Wednesday, December 17
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Requesting developer (irc handle) Gerrit link to backport or config change bd808 (bd808) 180214 (deploy commands) Fix UDPRCFeedEngine for wikis using Monolog logging 180082 (deploy commands) Use MWLogger for xff logs Erik B (ebernhardson) [wmf12] 180303 (deploy commands) Better handling for internationalized namespaces Marius (hoo) or aude 179469 (deploy commands) - Update entity suggester blacklist config. 180368 (deploy commands) - Fix site links editing and property label formatting.
15:00–16:00 UTC # 07:00–08:00 PST	Phabricator update	Chase (chasemp)	HOLD: Window to update phabricator.wikimedia.org
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	* Revert unintentional undeployed changes to a number of extensions at gerrit:180229 Rob Moen (rmoen)/Nik (manybubbles) 180319 (deploy commands) - Move advanced search inputs back into the form Requesting developer (irc handle) Gerrit link to backport or config change
19:00–21:00 UTC # 11:00–13:00 PST	MediaWiki train	Sam (Reedy) or Greg (greg-g)	1.25 schedule group0 1.25wmf12->1.25wmf13 group1 1.25wmf12 group2 1.24wmf11->1.25wmf12 group2 to 1.25wmf12 (all Wikipedias) group0 to 1.25wmf13 (test/test2/testwikidata/mediawiki)
21:00–22:00 UTC # 13:00–14:00 PST	Parsoid/OCG	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra) and Subbu (subbu)	See mw:Parsoid/Deployments, OCG/Deployments
Thursday, December 18
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Kaldari (kaldari) [config] 180376 (deploy commands) Turn off Main Page special casing on en.wiki Beta Labs for testing
00:00–08:00 UTC # (Wed) 16:00–00:00 PST	RT Migration	Chase (chasemp), Andre (andre__)	Phabricator RT migration: Tracking task and Timeline
16:00–17:00 UTC # 08:00–09:00 PST	Morning SWAT (Max 8 patches)	Nik (manybubbles), Brad (anomie), Chad (^d), or Mark (marktraceur)	gi11es 180138 (deploy commands) [config] Undeploy thumbnail chaining Requesting developer (irc handle) Gerrit link to backport or config change
Friday, December 19
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (^d), Mark (marktraceur) or Max (MaxSem)	Requesting developer (irc handle) Gerrit link to backport or config change

Upcoming

General

• HHVM
  • Should be 100% of all mediawiki servers by EOY
• Fundraising
  • Now through End of Year: tests throughout the week
• Holidays:
  • Week of Dec 22nd: No deploys
  • Week of Dec 29th: No deploys
• Language Engineering
  • Content Translation as BetaFeature (January 2015)

Not yet scheduled / On-going

• SUL Date? tracking bug
• Category collation improvements (bugzilla:44667, bugzilla:43799)
• Form Refresh Beta Feature
• FlaggedRevs for Norwegian (bokmål) Wikipedia - bugzilla:64726

Deployment trains

• mw:MediaWiki 1.25/Roadmap
• mw:Wikidata deployment

Product roadmaps

These are the overall 2013–14 engineering goals:

• Multimedia
  • Media Viewer
• Core Features (Flow)
  • Roadmap
  • Rollouts
• Growth Team
  • New extension to resolve bug 57315 (see also: Wikipedia article creation and Draft namespace)
  • All activities
• VisualEditor

• Mobile
  • Web
  • App
• MediaWiki Core
  • Search
  • HHVM
  • OAuth

• Language
• Operations
  • WMF Labs
• Parsoid
  • Roadmap
• Analytics
• wikidata:Wikidata:Development plan
• Math

Recently completed

For older deployments, please see the /Archive.