Running the statement SHOW PROCESSLIST would return columns as byte arrays instead of native columns. (Bug #28448)

Building a connection string within a tight loop would show slow performance. (Bug #28167)

Using logging (with the logging=true parameter to the connection string) would not generate a log file. (Bug #27765)

The UNSIGNED flag for parameters in a stored procedure would be ignored when using MySqlCommandBuilder to obtain the parameter information. (Bug #27679)

Using MySQLDataAdapter.FillSchema() on a stored procedure would raise an exception: Invalid attempt to access a field before calling Read(). (Bug #27668)

If you close an open connection with an active transaction, the transaction is not automatically rolled back. (Bug #27289)

When cloning an open MySqlClient.MySqlConnection with the Persist Security Info=False option set, the cloned connection is not usable because the security information has not been cloned. (Bug #27269)

Enlisting a null transaction would affect the current connection object, such that further enlistment operations to the transaction are not possible. (Bug #26754)

Attempting to change the Connection Protocol property within a PropertyGrid control would raise an exception. (Bug #26472)

The characterset property would not be identified during a connection (also affected Visual Studion Plugin). (Bug #26147, Bug #27240)

The CreateFormat column of the DataTypes collection did not contain a format specification for creating a new column type. (Bug #25947)

DATETIME fields from versions of MySQL bgefore 4.1 would be incorrectly parsed, resulting in a exception. (Bug #23342)