FYI. If your software interacts with the API, good list to join. 

---------- Forwarded message ----------
From: <mediawiki-api-announce-request@lists.wikimedia.org>
Date: Sunday, April 26, 2015
Subject: Mediawiki-api-announce Digest, Vol 

Today's Topics:


Date: Sat, 25 Apr 2015 08:30:32 -0400
From: "Brad Jorsch (Anomie)" <bjorsch@wikimedia.org>
To: mediawiki-api-announce@lists.wikimedia.org
Subject: [Mediawiki-api-announce] Change in ordering of revisions from
        prop=revisions

prop=revisions has long ordered revisions by rev_id rather than timestamp
when returning results for a single page. In most cases this doesn't make a
difference, but for old pages imported from earlier versions of Wikipedia,
for revisions imported from Special:Import, and so on these orderings don't
always match.

prop=revisions has now been updated[1] to order by timestamp rather than
id. While this is technically a breaking change, it seems unlikely that any
clients will actually be broken by this.

This should be deployed to WMF wikis with 1.26wmf4, see
https://www.mediawiki.org/wiki/MediaWiki_1.26/Roadmap for the schedule.

[1]: https://gerrit.wikimedia.org/r/#/c/188843/

--
Brad Jorsch (Anomie)
Software Engineer
Wikimedia Foundation