Based on MySQL 5.5.51, including all the bug fixes in it, Percona Server 5.5.51-38.2 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.5.51-38.2 milestone at Launchpad.
ld_preloadlibraries to be loaded from specific directories in
mysqld_safedidn’t work correctly for relative paths. Bug fixed #1624247.
Fixed possible privilege escalation that could be used when running
REPAIR TABLEon a
MyISAMtable. Bug fixed #1624397.
The general query log and slow query log cannot be written to files ending in
.cnfanymore. Bug fixed #1624400.
Implemented restrictions on symlinked files (
pid_file) that can’t be used with
mysqld_safe. Bug fixed #1624449.
Other bugs fixed: #1553938.
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