Fixed that databasename works as second
            argument to mysqlhotcopy.
          
            The values for the UMASK and
            UMASK_DIR environment variables now can
            be specified in octal by beginning the value with a zero.
          
            Added RIGHT JOIN. This makes
            RIGHT a reserved word.
          
            Added @@IDENTITY as a synonym for
            LAST_INSERT_ID(). (This is for MSSQL
            compatibility.)
          
            Fixed a bug in myisamchk and
            REPAIR when using
            FULLTEXT index.
          
            LOAD DATA INFILE now works with FIFOs.
            (Patch by Toni L. Harbaugh-Blackford.)
          
            FLUSH LOGS broke replication if you
            specified a log name with an explicit extension as the value
            of the log-bin option.
          
            Fixed a bug in MyISAM with packed
            multi-part keys.
          
            Fixed crash when using CHECK TABLE on
            Windows.
          
            Fixed a bug where FULLTEXT index always
            used the koi8_ukr character set.
          
            Fixed privilege checking for CHECK TABLE.
          
            The MyISAM repair/reindex code didn't use
            the --tmpdir option for its temporary
            files.
          
            Added BACKUP TABLE and RESTORE
            TABLE.
          
            Fixed core dump on CHANGE MASTER TO when
            the slave did not have the master to start with.
          
            Fixed incorrect Time in the processlist
            for Connect of the slave thread.
          
The slave now logs when it connects to the master.
            Fixed a core dump bug when doing FLUSH
            MASTER if you didn't specify a filename argument
            to --log-bin.
          
            Added missing ha_berkeley.x files to
            the MySQL Windows distribution.
          
Fixed some mutex bugs in the log code that could cause thread blocks if new log files couldn't be created.
Added lock time and number of selected processed rows to slow query log.
            Added --memlock option to
            mysqld to lock mysqld
            in memory on systems with the mlockall()
            call (as in Solaris).
          
            HEAP tables didn't use keys properly.
            (Bug from 3.23.23.)
          
            Added better support for MERGE tables
            (keys, mapping, creation, documentation...). See
            Secção 7.2, “Tabelas MERGE”.
          
            Fixed bug in mysqldump from 3.23 which
            caused some CHAR columns not to be
            quoted.
          
            Merged analyze, check,
            optimize and repair code.
          
            OPTIMIZE TABLE is now mapped to
            REPAIR with statistics and sorting of the
            index tree. This means that for the moment it only works on
            MyISAM tables.
          
Added a pre-alloced block to root_malloc to get fewer mallocs.
Added a lot of new statistics variables.
            Fixed ORDER BY bug with
            BDB tables.
          
            Removed warning that mysqld couldn't
            remove the .pid file under Windows.
          
            Changed --log-isam to log
            MyISAM tables instead of isam tables.
          
            Fixed CHECK TABLE to work on Windows.
          
            Added file mutexes to make pwrite() safe
            on Windows.
          
This is a translation of the MySQL Reference Manual that can be found at dev.mysql.com. The original Reference Manual is in English, and this translation is not necessarily as up to date as the English version.

