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MySQL Connector/NET 8.0.23 has been released
Posted by: Nawaz Nazeer Ahamed
Date: January 18, 2021 08:47AM

Dear MySQL users,

MySQL Connector/NET 8.0.23 is the latest General Availability release
of the MySQL Connector/NET 8.0 series. This version supports .NET 5.0
and the X DevAPI, which enables application developers to write code
that combines the strengths of the relational and document models
using a modern, NoSQL-like syntax that does not assume previous
experience writing traditional SQL.

To learn more about how to write applications using the X DevAPI, see

  http://dev.mysql.com/doc/x-devapi-userguide/en/

For more information about how the X DevAPI is implemented in
Connector/NET, see

  http://dev.mysql.com/doc/dev/connector-net

NuGet packages provide functionality at a project level. To get the
full set of features available in Connector/NET such as availability
in the GAC, integration with Visual Studio's Entity Framework Designer
and integration with MySQL for Visual Studio, installation through the
MySQL Installer or the stand-alone MSI is required.

Please note that the X DevAPI requires at least MySQL Server version
8.0 or higher with the X Plugin enabled. For general documentation
about how to get started using MySQL as a document store, see

  http://dev.mysql.com/doc/refman/8.0/en/document-store.html

To download MySQL Connector/NET 8.0.23, see

  http://dev.mysql.com/downloads/connector/net/

Installation instructions can be found at

  https://dev.mysql.com/doc/connector-net/en/connector-net-installation.html

Enjoy!

Changes in MySQL Connector/NET 8.0.23 (2021-01-18, General
Availability)


Functionality Added or Changed

     * Connector/NET updates to SSH ciphers and algorithms are:

          + Encryptions: aes192-cbc, aes256-cbc (deprecated);
            3des-cbc, blowfish-cbc, twofish-cbc, twofish128-cbc,
            twofish192-cbc, twofish256-cbc (invalid)

          + Host Key Algorithms: ssh-rsa (deprecated); sh-dss
            (invalid)

          + Key Exchange Algorithms:
            diffie-hellman-group-exchange-sha1 (invalid)

          + Keyed Hash Message Authentication Codes:
            hmac-ripemd160,hmac-ripemd160@openssh.com,
            hmac-sha1-96 (invalid)

       For a complete list, see SSH Ciphers in Connector/NET
       https://dev.mysql.com/doc/connector-net/en/connector-net-ssh-ciphers.html
       (Bug #31917057)

     * The IgnorePrepare connection-string option is deprecated
       in this release and the default value, which was true, is
       now false. When set to true, the option instructs
       Connector/NET to ignore any calls to
       MySqlCommand.Prepare() made with the classic MySQL
       protocol. The option is scheduled for removal in the next
       release. (Bug #31872906)

     * ASP.NET applications using the MySQL provider model
       (MySql.Web) can now target .NET Framework 4.8.
       (Bug #31799902)

     * The following synonyms for the Server connection string
       option were deprecated in Connector/NET 8.0.22 and
       removed in 8.0.23: address, addr, and network address.
       (Bug #31248601)

     * Previously, Connector/NET added client support for the
       MySQL Enterprise Edition SASL LDAP authentication plugin
       with SCRAM-SHA-1 as an authentication method.
       Connector/NET now also supports SCRAM-SHA-256 as an
       alternative authentication method for classic MySQL
       protocol connections. SCRAM-SHA-256 is similar to
       SCRAM-SHA-1 but is more secure. SASL-based LDAP
       authentication does not apply to clients running macOS.

     * With the availability of Entity Framework Core 5.0 in
       addition to Entity Framework Core 3.1, Connector/NET now
       provides two distinct EF Core packages. The split enables
       the connector to support both feature sets as they
       diverge. Initially, Connector/NET supports a partial EF
       Core 5.0 feature set (equivalent to EF Core 3.1) in this
       release. For more information, see Entity Framework Core
       Support
       https://dev.mysql.com/doc/connector-net/en/connector-net-entityframework-core.html
       Breaking change: all MySql.Data.EntityFrameworkCore.xxx
       namespaces are renamed to MySql.EntityFrameworkCore.xxx.
       New EF Core package naming for Connector/NET 8.0.23:

          + 5.0.0-m8.0.23
          + 3.1.10-m8.0.23

Bugs Fixed

     * If a prepared statement had no parameters, Connector/NET
       included in the COM_STMT_EXECUTE packet structure a byte
       corresponding to new-params-bound-flag instead of sending
       the byte only when the number of parameters was greater
       than zero. (Bug #32208427)

     * Incomplete validation limited the expected range of
       values that a stored procedure with a parameter of type
       Boolean could assign using the MySqlParameter.MySqlDbType
       property. (Bug #32066024, Bug #101302)

     * Stronger validation was applied to information contained
       in the certificate store for connections made using
       SslMode. (Bug #31954655)

     * A connection timeout was added to prevent the
       MySqlConnection.Open method from waiting indefinitely for
       a response after MySQL Router restarted unexpectedly.
       (Bug #31945397, Bug #100692)

     * A cast made with the wrong data type during a valid EF
       Core operation returned an exception.
       (Bug #31860492, Bug #100773)

     * Connector/NET used the value of -1 internally to ensure
       that a parameter without an index was added to the end of
       the parameter list. However, if an index with an actual
       value of -1 was passed in, the collection was interpreted
       as having no index and the argument did not generate an
       out-of-range exception. (Bug #31754599, Bug #100522)

     * Without validation, an underlying 64-bit enumeration
       value passed in as a MySQL command parameter defaulted to
       type Int32 and produced an overflow exception.
       (Bug #25467610, Bug #84701)

Enjoy and thanks for the support!

On behalf of the MySQL Release Team,
Nawaz Nazeer Ahamed

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