MySQL Connector/NET 8.0.19 has been released

[Tvarita Jain]

Dear MySQL users,

MySQL Connector/NET 8.0.19 is the latest General Availability release of
the MySQL Connector/NET 8.0 series. This version supports .NET Core 3.0
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/index.html. 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 8.0.19, 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

Changes in MySQL Connector/NET 8.0.19 (2020-01-13, General
Availability)


* Functionality Added or Changed

* Bugs Fixed

Functionality Added or Changed


* Connector/NET supports TLS protocol versions TLSv1,
TLSv1.1, TLSv1.2, and TLSv1.3. A new connection-string
option, tlsversion, permits the restriction of a
connection to a single version or to a list with any
combination of the four supported TLS versions (see
Options for Both Classic MySQL Protocol and X Protocol
https://dev.mysql.com/doc/connector-net/en/connector-net-8-0-connection-options.html#connector-net-8-0-connection-options-classic-xprotocol.)
Known issue: both .NET Core 3.0 (crossplatform) and .NET
Framework 4.8 (windows only) added support for TLSv1.3.
Be sure to confirm that the platform operating system
running your application also supports TLSv1.3 before
using it exclusively for connections. (Bug #30225427)

* Support for DNS Service (SRV) records now provides an
alternative to specifying individual hosts in the
connection string. Instead, a single DNS domain can map
to multiple targets (servers) using SRV address records.
Each SRV record includes the host name, port, priority,
and weight. For .NET applications using X Protocol, a new
URI scheme of mysqlx+srv:// enables connections to share
the query load when a single DNS domain is mapped to
multiple servers.
Similarly, the new dns-srv connection-string option also
enables DNS SRV lookups for connections using either the
classic MySQL protocol or X Protocol. The DNS SRV feature
is disable by default. For usage information, see Options
for Both Classic MySQL Protocol and X Protocol
https://dev.mysql.com/doc/connector-net/en/connector-net-8-0-connection-options.html#connector-net-8-0-connection-options-classic-xprotocol.

* When creating a new connection using classic MySQL
protocol, multiple hosts can be tried until a successful
connection is established. A list of hosts can be given
in a connection string, with or without priorities.

// Example with priority
server=(address=192.10.1.52:3305,priority=60),(address=localhost:3306,
priority=100);

// Example without priority and with multiple ports
host=10.10.10.10:3306,192.101.10.2:3305,localhost:3306;uid=test;passwo
rd=xxxx;

If the priority is not included, or if multiple hosts
have the same priority, Connector/NET selects a host at
random. The same random selection behavior also applies
to connections made using X Protocol, which previously
selected hosts sequentially when no priority was
specified.

Bugs Fixed


* Clone connections did not process all connection settings
as expected. (Bug #30502718)

* Connector/NET files displayed an unlikely date after the
NuGet package containing them was installed in a project.
(Bug #30471336, Bug #97390)

* The inclusion of the System.Resources.Extensions
dependency was transient and now is removed from the
MySql.Data NuGet package. (Bug #30421657, Bug #97218)

On behalf of Oracle/MySQL Release Engineering Team,
Tvarita Jain