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