I just wanted to drop a quick note to let you know that we will be upgrading most of Wikia to MediaWiki 1.15.1 on Wednesday morning. Most users shouldn't see any significant changes with this upgrade, as most of the changes are bug-fixes or tweaks to existing features. You can view a full list of all of the changes here.
On Wednesday, August 26th, we plan to roll out MediaWiki 1.15.1 to every wiki on Wikia except for the following wikis, which will instead be upgraded to the new version on Monday, August 31st:
As always, we don't anticipate any significant problems or downtime; however, if you notice any problems, please report them here.