Added the innodb_log_sequence_lsn64 innodb_log_flushed_lsn64 innodb_log_checkpoint_lsn64 data collection items, which are 64-bit variants of their *_lsn counterparts. (Bug #13854527)

Added four new prepared statement graphs: Prepared Statement SQL, Prepared Statement API, Prepared Statement API Invalidations (stmt_reprepare), and Prepared Statement Utilization (Open/Max).

The SQL and API variants differ in that there are two forms of prepared statements. Those within SQL, such as "PREPARE ...; EXECUTE ...; DEALLOCATE PREPARE ...;", and those using the protocol API, such as "mysql_stmt_init(...); mysql_stmt_prepare(...); mysql_stmt_execute(...), mysql_stmt_fetch(...); mysql_stmt_close(...);". (Bug #13854916)

Added four new InnoDB graphs: InnoDB Row Lock Time (the total time spent acquiring row locks), InnoDB Row Lock Time Statistics (the average and maximum time spent acquiring row locks), and InnoDB Row Lock Wait (the number of times a row lock had to be waited for), and InnoDB Redo Log Checkpoint Lag (tracks both flush and checkpoint differences against the maximum log file size). (Bug #13855084, Bug #13855055, Bug #13854527)

Added a Query Cache Fragmentation advisor and graph. (Bug #13743414)

The mysqlenterprise.disableSourceLocation property was added to the Connector/J plugin, and defaults to false. (Bug #13789241)

The bundled MySQL version has been upgraded to version 5.5.21. The previous version was 5.1.56.

Note: On Linux, MySQL Server 5.5.10 and greater depends on the libaio library being available on the server. Therefore, this dependency affects the bundled MySQL Server. Solaris, Windows, and Mac OS X enable AIO functionality by default. (Bug #13599824)

Added the following configuration options: proxy-connect-timeout, proxy-read-timeout, and proxy-write-timeout. (Bug #13332197)

Added several new error log entries.

New message level entries: Failed and accepted authentications, and connections to MEM servers.

New debug level entries: HTTP traffic, both requests and responses. (Bug #51773, Bug #11759454)

On FreeBSD, the GUI version of the installer no longer supports GTK. The X Windows GUI is still supported, and is the new default type. (Bug #13974672)

The LEFT(), RIGHT() and NUM() functions were added to the expression parser. (Bug #13958008)

The "Query Cache Has Sub-Optimal Hit Rate" rule would trigger a critical alert when more than 25% of the cache was free, instead of when more than 25% of the cache was used. (Bug #13921932)

The MySQL Enterprise Backup temporary table mysql.ibbackup_binlog_marker is now excluded from the "User Has Rights To Table That Does Not Exist" advisor. (Bug #13874149)

The Installer/Updater would emit a warning when the required libaio was not detected, but it would continue with the incomplete installation. It now prompts to enter the path, and the unattended installer exits with an error. (Bug #13875287)

The "Excessive Number of Long Running Processes" rule was updated to ignore replication threads, as binlog dump entries are now ignored. (Bug #13841872)

The InnoDB Row Lock Detail graph was updated to work properly with MySQL Server 5.5+. (Bug #13855055)

The JSON variants of the diagnostic information was removed from the downloadable package generated by Manage Servers, Support Diagnostics. (Bug #13851543)

When an agent is used along with MySQL Enterprise Agent Proxy Service, the LOAD DATA LOCAL INFILE statement could cause memory exhaustion with large files, due to the entire file/query being buffered before execution. (Bug #13795425)

The Update script would not update properly if a non-bundled version of MySQL was used previously, and a version configured as localhost or 127.0.0.1. (Bug #13847215)

The Query Analyzer plugin would fail to load with Connector/J when useInformationSchema=true was used in the JDBC connection URL. (Bug #13807492)

Updated the "Query Cache Not Enabled" description, along with its associated advice. The new suggested size is "query_cache_size = 32M" instead of "query_cache_size = 25% of total RAM." (Bug #13743390)

It was not possible to delete multiple servers within the Manage Servers dashboard. Attempting to do so would result in an error. (Bug #13723310)

On Microsoft Windows, the gspawn-win32-helper-console tool would fail to install. (Bug #13645684)

When performing an update install of the Agent on a 2.3+ MySQL Enterprise Monitor release, the mysql-monitor-agent.ini and agent-instance.ini ini files are now fully preserved during the update, which includes custom comments and options. Updating from a 2.2 or earlier MySQL Enterprise Monitor release will behave as done previously, which is to only preserve known ini+value pairs. (Bug #13650743, Bug #13583872)

Upgrading MySQL Enterprise Monitor could create a broken .ini file, by removing the host from certain ini settings. For example, it would change aggr-ssl-address = 127.0.0.1:3357 into aggr-ssl-address=:3357. Affected ini settings were aggr-ssl-address, aggr-address, and proxy-address. (Bug #13626844)

During the initial discovery of a server, MySQL Enterprise Monitor would emit a ServerDoesNotExistException exception. (Bug #13632006)

When using the Japanese locale, requesting a report via Manage Servers, support diagnostics, would produce a broken link to the report. (Bug #13646277)

Line endings (such as \n) are now stripped from logged ssh keygen errors. The debug log level continues to include the unstripped ssh stdout messages. (Bug #13645718)

On Mac OS X, if ssh-keygen fails with an error message to stdout, then the exit code was not honored. In other words, --agent-ssh-keygen-retry now functions properly. (Bug #13644842)

When using the Japanese locale, zooming into any graph with "All Servers" set would emit an unreadable graph title. (Bug #13648133)

The recently (2.3.9) introduced --agent-ssh-keygen-attempts and --agent-ssh-keygen-retry options did not function properly, but now work with all operating systems. (Bug #13392272)

Sorting the Manage Servers page by Agent would sometimes result in an unhandled exception. (Bug #13335253)

On Mac OS X 10.6, the Agent did not use launchd correctly and would crash in Gestalt. (Bug #12768198, Bug #13738592)

The Installer/Upgrader would not back up all files. The mechanism that chooses which files are backed up has changed from a whitelist to a blacklist. (Bug #12678942)

With Internet Explorer 8.0, the bullet list on the left side of the "What's New?" page would be hidden.