Added -O lower_case_table_names={0|1}
            option to mysqld to allow users to force
            table names to lowercase.
          
            Added SELECT ... INTO DUMPFILE.
          
            Added --ansi option to
            mysqld to make some functions SQL-99
            compatible.
          
            Temporary table names now start with
            #sql.
          
            Added quoting of identifiers with `
            (" in --ansi mode).
          
            Changed to use snprintf() when printing
            floats to avoid some buffer overflows on FreeBSD.
          
            Made FLOOR() overflow safe on FreeBSD.
          
            Added --quote-names option to
            mysqldump.
          
            Fixed bug that one could make a part of a PRIMARY
            KEY NOT NULL.
          
            Fixed encrypt() to be thread-safe and not
            reuse buffer.
          
            Added mysql_odbc_escape_string() function
            to support big5 characters in MyODBC.
          
Rewrote the storage engine to use classes. This introduces a lot of new code, but will make table handling faster and better.
Added patch by Sasha for user-defined variables.
            Changed that FLOAT and
            DOUBLE (without any length modifiers) no
            longer are fixed decimal point numbers.
          
            Changed the meaning of FLOAT(X): Now this
            is the same as FLOAT if
            X <= 24 and a
            DOUBLE if 24 < X
            <= 53.
          
            DECIMAL(X) is now an alias for
            DECIMAL(X,0) and
            DECIMAL is now an alias for
            DECIMAL(10,0). The same goes for
            NUMERIC.
          
            Added option ROW_FORMAT={default | dynamic | fixed
            | compressed} to CREATE_TABLE.
          
            DELETE FROM table_name didn't work on
            temporary tables.
          
            Changed function CHAR_LENGTH() to be
            multi-byte character safe.
          
            Added function ORD(string).
          
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.

