Allocate bigger default thread stack because of problems with glibc
Fixed bug in UPDATE ... not_null_field=expression_that_returns_null
Fixed bug in replication when using auto_increment and LOAD DATA INFILE
Added missing InnoDB variables to SHOW VARIABLES.
Fixed bug when doing WHERE 'column_name=NULL' on an indexed column that had NULL values.
Fixed bug when doing 'LEFT JOIN ... ON (column_name = constant) WHERE column_name = constant'