Hello and welcome to the latest edition of the WMF Engineering Roadmap and Deployment update.

The full log of planned deployments next week can be found at: https://wikitech.wikimedia.org/wiki/Deployments#Week_of_May_19th

A quick list of notable items...

== Monday ==

* Enable CirrusSearch as primary search backend on zh-yue wikipedia. ** http://www.mediawiki.org/wiki/Search

* Enable anonymous editor acquisition experiment in GettingStarted on enwiki, dewiki, frwiki, itwiki and test wikis.

== Tuesday ==

* MediaWiki deploy ** group1 to 1.24wmf5: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites) ** https://www.mediawiki.org/wiki/MediaWiki_1.24/wmf5

* Enable Flow at mw:Talk:Wikibase/Beta Features/Other projects sidebar, mw:Talk:Design, and mw:Talk:Phabricator/Help ** https://www.mediawiki.org/wiki/Flow

== Wednesday ==

* Swapping GeoData to use Elasticsearch as its backend everywhere. ** http://www.mediawiki.org/wiki/Extension:GeoData

== Thursday ==

* MediaWiki deploy ** group2 to 1.24wmf4 (all Wikipedias) ** group0 to 1.24wmf5 (test/test2/testwikidata/mediawiki)

* MediaViewer ** English, German, Italian and Russian Wikipedias, and all Wikisources, in stages. ** < https://www.mediawiki.org/wiki/Multimedia/Media_Viewer/Release_Plan#Timeline

Thanks and as always, questions and comments welcome,

Greg