End of Product Lifecycle. Active development and support for MySQL database server versions 3.23, 4.0, and 4.1 has ended. However, for MySQL 4.0 and 4.1, there is still extended support available. For details, see http://www.mysql.com/company/legal/lifecycle/#calendar. According to the MySQL Lifecycle Policy (see http://www.mysql.com/company/legal/lifecycle/#policy), only Security and Severity Level 1 issues will still be fixed for MySQL 4.0 and 4.1. Please consider upgrading to a recent version (MySQL 5.0 or 5.1).
Fixed a problem from 3.23.17 when choosing character set on the client side.
Added FLUSH TABLES WITH READ LOCK to make a
global lock suitable for making a copy of MySQL data files.
CREATE TABLE ... SELECT ... PROCEDURE now
works.
Internal temporary tables now use compressed index when using
GROUP BY on VARCHAR/CHAR
columns.
Fixed a problem when locking the same table with both a
READ and a WRITE lock.
Fixed problem with myisamchk and
RAID tables.

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