Percona Server, an enhanced drop-in replacement for MySQL that will allow queries to run faster and more consistently and to consolidate servers on powerful hardware, is now at version 5.5.30-30.1.
Highlights of Percona Server 5.5.30-30.1:
• Minor optimization cleanup has been done by removing unnecessary current_thd calls; • The regression introduced by a previous fix, which caused unnecessary mutex re-acquisitions in adaptive flushing, has been corrected; • Percona Server would do unnecessary slow log stats accounting, even with the slow log disabled; • Optimization cleanup has been done in order to avoid calls related to extended slow query log stats; • The static srv_pass_corrupt_table variable could share CPU cache lines with InnoDB row counters, which resulted in high false sharing effect in high-concurrent workloads.
A complete list of changes and updates can be found in the official announcement. Download Percona Server 5.5.30-30.1 right now from Softpedia. According to the developers, this is now the current stable release in the 5.5 series.