.. rn:: 5.7.14-26.17

=====================================
|Percona XtraDB Cluster| 5.7.14-26.17
=====================================

.. note:: This release is dedicated to the memory of Federico Goncalvez,
   our colleague with Percona's Uruguayan team
   until his tragic death on September 6, 2016.

   Fede, you are missed.

Percona is glad to announce the release of
|PXC| 5.7.14-26.17 on September 29, 2016.
Binaries are available from the
`downloads area
<http://www.percona.com/downloads/Percona-XtraDB-Cluster-57/LATEST>`_
or from our :ref:`software repositories <install>`.

|PXC| 5.7.14-26.17 is the first GA release in the 5.7 series,
based on the following:

* `Percona Server 5.7.14-8 <http://www.percona.com/doc/percona-server/5.7/release-notes/Percona-Server-5.7.14-8.html>`_

* `Galera Replicator 3.17 <https://github.com/percona/galera/tree/rel-3.17>`_

For information about the changes
and new features introduced in Percona Server 5.7,
see `Changed in Percona Server 5.7 <https://www.percona.com/doc/percona-server/5.7/changed_in_57.html>`_.

New Features
============

This is a list of the most important features introduced in |PXC| 5.7
compared to version 5.6

* :ref:`pxc-strict-mode` saves your workload
  from experimental and unsupported features.

* Support for monitoring Galera Library instruments
  and other wsrep instruments as part of Performance Schema.

* Support for encrypted tablespaces in Multi-Master Topology,
  which enables |PXC| to wire encrypted tablespace to new booting node.

* Compatibility with ProxySQL, including a quick configuration script.

* Support for monitoring |PXC| nodes using
  `Percona Monitoring and Management <https://www.percona.com/software/database-tools/percona-monitoring-and-management>`_

* More stable and robust operation
  with MySQL and Percona Server version 5.7.14,
  as well as Galera 3.17 compatibility.
  Includes all upstream bug fixes, improved logging and more.

* Simplified packaging for |PXC| to a single package
  that installs everything it needs, including the Galera library.

* Support for latest XtraBackup with enhanced security checks.

Bug Fixes
=========

Fixed crash when a local transaction (such as ``EXPLAIN`` or ``SHOW``)
is interrupted by a replicated transaction with higher priopiry
(like ``ALTER`` that changes table structure
and can thus affect the result of the local transaction).

Fixed DONOR node getting stuck in ``Joined`` state
after successful SST.

Fixed error message when altering non-existent table
with ``pxc-strict-mode`` enabled.

Fixed path to directory in :file:`percona-xtradb-cluster-shared.conf`.

Fixed setting of ``seqno`` in :file:`grastate.dat` to ``-1``
on clean shutdown.

Fixed failure of asynchronous TOI actions (like ``DROP``)
for non-primary nodes.

Fixed replacing of ``my.cnf`` during upgrade from 5.6 to 5.7.

Security Fixes
==============

* CVE-2016-6662
* CVE-2016-6663
* CVE-2016-6664

For more information, see https://www.percona.com/blog/2016/09/12/database-affected-cve-2016-6662/

Other Improvements
==================

Added support of |defaults-group-suffix|_ for SST scripts.

.. |defaults-group-suffix| replace:: ``defaults-group-suffix``
.. _defaults-group-suffix: http://dev.mysql.com/doc/refman/5.7/en/option-file-options.html#option_general_defaults-group-suffix

