The AUTO_INCREMENT sequence wasn't reset when dropping and adding an AUTO_INCREMENT column.
CREATE ... SELECT now creates non-unique indexes delayed.
Fixed problem where LOCK TABLES tbl_name READ followed by FLUSH TABLES put an exclusive lock on the table.
REAL @variable values were represented with only 2 digits when converted to strings.
Fixed problem that client ``hung'' when LOAD TABLE FROM MASTER failed.
myisamchk --fast --force will no longer repair tables that only had the open count wrong.
Added functions to handle symbolic links to make life easier in 4.0.
We are now using the -lcma thread library on HP-UX 10.20 so that MySQL will be more stable on HP-UX.
Fixed problem with IF() and number of decimals in the result.
Fixed date-part extraction functions to work with dates where day and/or month is 0.
Extended argument length in option files from 256 to 512 chars.
Fixed problem with shutdown when INSERT DELAYED was waiting for a LOCK TABLE.
Fixed core dump bug in InnoDB when tablespace was full.
Fixed problem with MERGE tables and big tables (> 4G) when using ORDER BY.