Release 3.8.1 of WordPress is available for download. This is the firs release after v3.8 stable and we recommend upgrading your WordPress installation.
This is a maintenance release that provides fixes to issues and bugs noticed in the previous version
What’s changed in WP v3.8.1
Here are some of the fixed issues:
– many improvements and fixes for new admin panel and themes design
– resolved an issue with taxonomy queries in WP_Query
– bug with submit buttons that won’t do anything when you click on them have been found and fixed.
– a fix for embedding tweets (by placing the URL to the tweet on its own line), which was broken due to a recent Twitter API change.
Full list of changes and fixed bugs can be found in the changelog: https://core.trac.wordpress.org/log/branches/3.8?rev=27018&stop_rev=26862