MySQL 5.5.27发布。
2012-08-02 之前的版本是2012-07-05的5.5.25a.未正式发布5.5.26 看改进只是去掉了YEAR(2) ？其他产品线还是5.1.63 5.0.96。
下载：
ftp://mirror.switch.ch/mirror/mysql/Downloads/MySQL-5.5/mysql-5.5.27.tar.gz
Important Change:
The
YEAR(2) data type is now deprecated because it is problematic. Support for
YEAR(2) will be removed in a future release of MySQL. For more information, see
Section 11.3.4, “YEAR(2) Limitations and Migrating to YEAR(4)”.