MediaWiki 1.27/en

MediaWiki 1.27 is a future release. Consult the file for the full list of changes. It is currently deployed on Wikimedia Foundation wikis through incremental "1.27.0-wmf.NN" branches starting September 29, 2015 (see details of each). The 1.27.0 stable release is expected to come out around May 2016. Download the or checkout the   branch in Git to follow this release.

InstantCommons made easier and cheaper
will now truly work out of the box, as long as your users can connect to upload.wikimedia.org: thumbnails will be served from that domain instead of requiring local generation (251556).