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_October_27th

A quick list of notable items...

== All week ==

* Nightly localization (translation) update will be temporarily disabled starting from 2014-10-27 because of migration of plural rules to CLDR 26 ** see https://bugzilla.wikimedia.org/show_bug.cgi?id=62861 ** WHY? We are disabling the updates to reduce the chance of ungrammatical translations being displayed in the interface. Translators are requested to start updating translations from Tuesday 28th October 2014 onwards.

== Monday ==

* HHVM (improved MediaWiki server performance) will restart their deployment plan (one week delayed) after a fix for a blocking performance issue is deployed and tested on Monday.

== Tuesday ==

* MediaWiki deploy ** group1 to 1.25wmf5: All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, and a few other sites) ** https://www.mediawiki.org/wiki/MediaWiki_1.25/wmf5

* Switching SpecialCite out for CiteThisPage ** https://bugzilla.wikimedia.org/show_bug.cgi?id=71112 ** https://gerrit.wikimedia.org/r/158121

== Wednesday ==

(NB: Note the change of day)

* MediaWiki deploy ** group2 to 1.25wmf5 (all Wikipedias) ** group0 to 1.25wmf6 (test/test2/testwikidata/mediawiki)

Thanks and as always, questions and comments welcome,

Greg