MySQL Connector/C 6.1.9 GA has been released

Dear MySQL Users,

A new GA (general availability) version of MySQL Connector/C has
been made available: MySQL Connector/C 6.1.9 GA. The MySQL
Connector/C provides a C API for connecting client applications to
the MySQL Server 5.5 or newer.

You can download the production release at:

MySQL Connector C (Commercial) will be available for download on the
My Oracle Support (MOS) website. This release will be available on eDelivery
(OSDC) in next month’s upload cycle.

We have improved the driver since the last GA release. Please see the
documentation and the CHANGES file in the source distribution for a
detailed description of bugs that have been fixed. Bug descriptions are
also listed below.



Changes in MySQL Connector/C 6.1.9 (2017-01-10, General

Security Notes

* OpenSSL is ending support for version 1.0.1 in December
2016; see
Consequently, Connector/C Commercial builds now use
version 1.0.2 rather than version 1.0.1, and the linked
OpenSSL library for the Connector/C Commercial has been
updated from version 1.0.1 to version 1.0.2j. For a
description of issues fixed in this version, see
This change does not affect Oracle-produced MySQL
Community builds of Connector/C, which use the yaSSL
library instead. (Bug #24753384)

* A new MYSQL_OPT_TLS_VERSION option is available for the
mysql_options() C API function to indicate the protocols
permitted by the client for encrypted connections.
For more information, see mysql_options()
(Bug #22932026)

* A new MYSQL_OPT_SSL_MODE option is available for the
mysql_options() C API function to indicate the security
state to use for the connection to the server.
For more information, see mysql_options()
(Bug #22931973)

Functionality Added or Changed

* Previously, Connector/C permitted user names up to a
maximum of 16 characters. Connector/C now permits longer
user names (up to 32 characters) if the server does. (Bug

* Connector/C now includes support for the server GTID
session tracker, introduced in MySQL 5.7.6. This tracker
is exposed through the session_track_gtids system
variable. (Bug #21040741)

* Connector/C now includes support for additional ranges of
server errors, introduced in MySQL 5.7.6. (Bug #21040703)

On Behalf of the MySQL/ORACLE RE Team
Piotr Obrzut

MySQL Connector/NET 6.10.0 alpha has been released

MySQL Connector/Net 6.10.0 alpha is the first release to provide Entity
Framework Core 1.1 support and to enable compression in the .NET Core
version of the driver for enhanced cross-platform application
development.To download MySQL Connector/Net 6.10.0 alpha, see the “Development
Releases” tab at


Known limitation of this release: DbContext within an application can
emit an unhandled exception. Due to this limitation,

MySQL Connector/Net 6.9.9 is the preferred version to use with EF6.

Functionality Added or Changed

  • Support for compression was extended to the .NET Core version of the driver.
  • Added support for Entity Framework (EF) Core 1.1.


Packages are available at:

Enjoy and thanks for the support!

On behalf of the MySQL/Oracle Release Engineering Team
Prashant Tekriwal