After six weeks and more than 9.3 million downloads of WordPress 3.8, we’re pleased to announce WordPress 3.8.1 is now available.
Version 3.8.1 is a maintenance releases that addresses 31 bugs in 3.8, including various fixes and improvements for the new dashboard design and new themes admin screen. An issue with taxonomy queries in WP_Query was resolved. And if you’ve been frustrated by submit buttons that won’t do anything when you click on them (or thought you were going crazy, like some of us), we’ve found and fixed this “dead zone” on submit buttons.
http://wordpress.org/news/2014/01/wordpress-3-8-1/