Fixed bug when using the following construct: SELECT ... WHERE key=@var_name OR key=@var_name2

Restrict InnoDB keys to 500 bytes.

InnoDB now supports NULL in keys.

Fixed shutdown problem on HP-UX. (Introduced in 3.23.46)

Fixed core dump bug in replication when using SELECT RELEASE_LOCK().

Added new statement: DO expr[,expr]...

Added slave-skip-errors option.

Added statistics variables for all MySQL commands. (SHOW STATUS is now much longer.)

Fixed default values for InnoDB tables.

Fixed that GROUP BY expr DESC works.

Fixed bug when using t1 LEFT JOIN t2 ON t2.key=constant.

mysql_config now also works with binary (relocated) distributions.