ENGINE is now a synonym for the TYPE option for CREATE TABLE and ALTER TABLE.

Added init_connect and init_slave server variables. The values should be SQL statements to be executed when each client connects or each time a slave's SQL thread starts, respectively.

C API enhancement: SERVER_QUERY_NO_INDEX_USED and SERVER_QUERY_NO_GOOD_INDEX_USED flags are now set in server_status field of MYSQL structure. It is these flags that make the query to be logged as slow if mysqld was started with --log-slow-queries --log-queries-not-using-indexes.

Fixed a bug with the INTERVAL() function when 8 or more comparison arguments are provided. (Bug#1561)

Packaging: Fixed a bug in the Mac OS PKG postinstall script (mysql_install_db was called with an obsolete argument).

Packaging: Added missing file mysql_create_system_tables to the server RPM package. This bug was fixed for the 4.1.1 RPMs by updating the MySQL-server RPM from MySQL-server-4.1.1-0 to MySQL-server-4.1.1-1. The other RPMs were not affected by this change.

Fixed a bug in myisamchk and CHECK TABLE that sometimes resulted in a spurious error Found key at page ..... that points to record outside datafile for a table with a FULLTEXT index. (Bug#1977)

Fixed a hang in full-text indexing of strings in multi-byte (all besides utf8) charsets. (Bug#2065)

Fixed a crash in full-text indexing of UTF-8 data. (Bug#2033)

Replication: a rare race condition in the slave SQL thread that could lead to an incorrect complaint that the relay log is corrupted. (Bug#2011)

Replication: if an administrative command on a table (OPTIMIZE TABLE, REPAIR TABLE etc) was run on the slave, this could sometimes stop the slave SQL thread (this did not lead to any corruption; one just had to type START SLAVE to get replication going again). (Bug#1858)

Replication: in the slave SQL thread, a multi-table UPDATE could produce an incorrect complaint that some record was not found in one table, if the UPDATE was preceded by a INSERT ... SELECT. (Bug#1701)