Latest tech news from the Wikimedia technical community. Please inform other users about these changes. Not all changes will affect you. Translations are available.
Recent software changes
The latest version of MediaWiki (1.23wmf9) was added to test wikis and MediaWiki.org on January 2. It will be enabled on non-Wikipedia wikis on January 7 and on all Wikipedia wikis on January 9 (calendar).
On January 2, Wikimedia Commons, Wikidata and all Wikivoyage projects were broken for 2 hours due to language cache update issues.
On the same day, it was not possible to edit most wikis for about 30 minutes, due to a database replication problem.
Future software changes
The new search tool (CirrusSearch) will be added as the default search method for Italian Wikipedia, French Wikisource, Wikidata and all Wikivoyage sites, and as a second search method for the German Wikipedia and all Wikibooks sites on January 6. 
Spanish, French, Portuguese and Russian Wikipedia users will also be able to enable CirrusSearch in their Beta Features options. 
Plural form rules for some languages will be changed. Many translations of the user interface for Belarusian, Russian, Serbian, Ukrainian and other languages will need to be changed. 
You will see a warning when you try to delete a page linked to from other pages.