MySQL 5.6 is a new product series. Download 5.6.10 has been released on ftp yesterday. You can note that the previous alpha, beta, and rc words are removed. According to previous practices. (GA 5.5 starts from 5.5.8) Maybe this is the first GA version of 5.6. Note: GA-GeneralAvailability, usually available, refers to the version that can be used in the production environment.
Other product lines are 5.5.30, 5.1.68, and 5.0.96.
New Features of 5.6 include security enhancement, innoDB enhancement, partition enhancement, replication and log enhancement, optimization enhancement, conditional processing, data type change, host cache, and OpenGIS.
Http://dev.mysql.com/doc/refman/5.6/en/mysql-nutshell.html
Article: http://dev.mysql.com/tech-resources/articles/mysql-5.6-rc.html
Upgrade guide to http://dev.mysql.com/doc/refman/5.6/en/upgrading-from-previous-series.html
: Ftp://mirror.switch.ch/mirror/mysql/Downloads/MySQL-5.6/mysql-5.6.10.tar.gz