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MySQL Connector/NET Release Notes  /  Changes in MySQL Connector/Net 8.0  /  Changes in MySQL Connector/NET 8.0.31 (2022-10-11, General Availability)

Changes in MySQL Connector/NET 8.0.31 (2022-10-11, General Availability)

Deprecation and Removal Notes

  • The EMTrace extension is removed. The EMTrace project implements a trace-listener plugin that feeds data back to MySQL Enterprise Monitor using a REST server endpoint.

  • The MySql.Data.MySqlClient.Memcached namespace and its members now are removed. An alternative binary or text client is recommended for applications that access data using the InnoDB memcached plugin.

Functionality Added or Changed

  • Connector/NET now provides DNS Service (SRV) records support without depending on libraries that were previously omitted from the Connector/NET 8.0.19 (and later) NuGet packages. This update does not change how the DNS-SRV feature looks up, extracts the SRV records, or uses those records to establish a connection (see Opening a Connection Using a Single DNS Domain).

  • Connector/NET now supports .NET 7 (preview) and continues to support a range of frameworks (see Connector/NET Versions).

  • Connector/NET now fully supports EF Core 7.0 (preview) for applications that target .NET 7 exclusively. Applications that target .NET Framework (or any .NET Standard version) cannot use this feature.

Bugs Fixed

  • One of the links published for submitting a pull request was not well-formed. Our thanks to Adam Croot for the patch. (Bug #108290, Bug #34535732)

  • NuGet was not able to display license information for Connector/NET packages accurately. Our thanks to Matthew Steeples for the patch. (Bug #108091, Bug #34477295)

  • On systems running .NET 6, Connector/NET could throw an exception when trying to perform an equality check involving type Datetime.Date. (Bug #107618, Bug #34317220)

  • After a connection timeout expired, exception type TimeoutException was thrown when MySqlException was expected. (Bug #107600, Bug #34299402)

  • Incomplete dependencies prevented Connector/NET from installing and running properly. (Bug #107316, Bug #34189859)

  • If an exception occurred during the execution of a SQL statement within a transaction, the subsequent transaction rollback produced a null reference exception, which could cause the Web server (IIS) process to halt unexpectedly. This fix changes the way the connection object manages rollback behavior. (Bug #107110, Bug #34107186)

  • The overall performance of the MySql.Data.MySqlClient.MySqlParameterCollection.Add(Object) method was improved by changing the return statement. (Bug #105997, Bug #33710643)

  • When a query attribute and a command parameter had the exact same name, Connector/NET overwrote the value of the attribute with the value from the parameter, which then prevented using mysql_query_attribute_string to retrieve an accurate value for the attribute. Connector/NET now removes all parameter names when sending a prepared statement. (Bug #105728, Bug #33620022)

  • Additional validation now checks the MySqlParameter value assignment to ensure that binary data in a MemoryStream object can be read properly. (Bug #102593, Bug #32506736)

  • An error was emitted after passing in MySqlParameter.MySqlDbType set with type MySqlDbType.Int24 to command.ExecuteNonQuery() using a prepared statement. (Bug #95986, Bug #29959095)