As usual, the full calendar is available at:

https://wikitech.wikimedia.org/wiki/Deployments

== All week == * Sometime during the week there will be an upgrade to the test infrastructure managed by Jenkins, specifically an upgrade of Zuul (to the gearman based version). See: https://bugzilla.wikimedia.org/show_bug.cgi?id=50664

The time this is done will be based on the developers availability and impact on other developers' work, probably sometime in the morning UTC (ie: when much of the US is still asleep).

This should have no user visible impact.

== Monday ==

* Search - https://www.mediawiki.org/wiki/Search ** wikibooks and dewiki will have the new search as a secondary (opt-in via URL parameter) search backend, thus starting the indexing of those sites ** French (fr), Spanish (es), Russian (ru), and Portuguese (pt) wikis will have the new search as an opt-in BetaFeature. ** wikivoyages, frwikisource, wikidata, itwiki will have the new search as the primary search for all users.

== Tuesday ==

* MediaWiki deploy window, currently following the 1.23 schedule ** https://www.mediawiki.org/wiki/MediaWiki_1.23/Roadmap#Schedule_for_the_deplo... ** group1 to 1.23wmf9: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites)

== Wednesday ==

* Search ** This list of small miscellaneous wikis will have the new search as a secondary (opt-in via URL parameter) search backend, thus starting the indexing of those sites. https://gerrit.wikimedia.org/r/#/c/104765/5/cirrus.dblist ** notable members of that list: arbcom wikis, boardwiki, donatewiki, officewiki, otrswiki, stewardwiki, and the rest of the wikimania wikis.

== Thursday ==

* MediaWiki deploy window, currently following the 1.23 schedule) ** group2 to 1.23wmf9 (all Wikipedias) ** group0 to 1.23wmf10 (test/test2/testwikidata/mediawiki)

Best,

Greg