To connect MySQL Enterprise Monitor with an Active Directory server through LDAP, you must specify a user (even one with limited privileges). (Bug #58132)

Upgraded the bundled MySQL instance to 5.1.50. (Bug #58977)

The default MySQL port during MySQL Enterprise Monitor is now 13306 if you select the bundled MySQL server, or 3306 if you select an existing MySQL server instance. (Bug #57809)

The timestamp sent from the Aggregator to the Service Manager reflected the time that a query was sent to the Aggregator, not the time that the query was actually run. This could result in inaccurate graphs if the query data was buffered before being sent to the Aggregator. (Bug #57303)

The agent update installer used default values instead of values specified on the command line for --backupdir and --restartImmediately, when the installer was invoked in interactive (text / win32) mode. (Bug #57059)

A new graph, InnoDB Transaction Lock Memory, illustrates the number of undo log entries. This value is derived from the Information_Schema column INNODB_TRX.TRX_ROWS_MODIFIED. (Bug #44005)

After upgrading the service manager, certain graphs were not available and had to be re-imported. (Bug #57593)

The Manage Servers tab now displays an operating system column that you can sort and filter. (Bug #57517)

The aggregator incorrectly reported the average execution time for the summary period, rather than the total execution time. (Bug #57538)

The .log and .pid files for the MySQL Enterprise Agent would be left behind after deinstalling the Agent. Now these files are removed. (Bug #57845)

If the proxy was not enabled in MySQL Enterprise Monitor 2.2, an upgrade to 2.3 could fail. (Bug #57958)

Changing the frequency for the Heat Chart rule MySQL Agent Not Reachable to anything other than the default 00:01 caused the alert not to function. Now this rule cannot be changed to any different frequency. (Bug #58018)