This release is based on MySQL 5.6.37 and includes all the bug fixes in it. Percona Server 5.6.37-82.2 is now the current stable release in the 5.6 series. All software developed by Percona is open-source and free. Details of the release can be found in the 5.6.37-82.2 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.
For general inquiries, please send us your question and someone will contact you.