Percona Server 5.5.57-38.9

Percona is glad to announce the release of Percona Server 5.5.57-38.9 on August 23, 2017. Downloads are available here and from the Percona Software Repositories.

This release is based on MySQL 5.5.57 and includes all the bug fixes in it. Percona Server 5.5.57-38.9 is now the current stable release in the 5.5 series. All software developed by Percona is open-source and free. Details of this release can be found in the 5.5.57-38.9 milestone on Launchpad.


Red Hat Enterprise Linux 5 (including CentOS 5 and other derivatives), Ubuntu 12.04 and older versions are no longer supported by Percona software. The reason for this is that these platforms reached end of life, will not receive updates and are not recommended for use in production.

New Features

  • #1702903: Added support of OpenSSL 1.1.

Platform Support

  • Added support and packages for Debian 9 (stretch). Covers only the amd64 architecture.
  • Removed packages for RHEL 5 (CentOS 5) and Ubuntu 12.04.

Bugs Fixed

  • #1622985: Downgraded diagnostic severity from warning to normal note for successful doublewrite buffer recovery.
  • #1661488: Fixed crash of debug server build when two clients connected, one of them enabled userstat and ran either FLUSH CLIENT_STATISTICS or FLUSH USER_STATISTICS, and then both clients exited.
  • #1673656: Added support of wildcards and Subject Alternative Names (SAN) in SSL certificates for --ssl-verify-server-cert. For more information, see Compatibility Matrix.
  • #1705729: Fixed the postinst script to correctly locate the datadir.
  • #1709834: Fixed the mysqld_safe script to correctly locate the basedir.
  • Minor fixes: #1160986, #1684601, #1689998, #1690012.

Compatibility Matrix

Feature YaSSL OpenSSL < 1.0.2 OpenSSL >= 1.0.2
‘commonName’ validation Yes Yes Yes
SAN validation No Yes Yes
Wildcards support No No Yes

Contact Us

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To report bugs or submit feature requests, open a JIRA ticket.
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