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Based on Percona Server 5.6.15-63.0 including all the bug fixes in it, Galera Replicator 3.3 and on Codership wsrep API 5.6.15-25.2 is now the first General Availability release. All of Percona‘s software is open-source and free, all the details of the release can be found in the 5.6.15-25.3 milestone at Launchpad.
Node would get stuck and required restart if DDL was performed after FLUSH TABLES WITH READ LOCK. Bug fixed #1265656.
Galera provider pause has been fixed to avoid potential deadlock with replicating threads.
Default value for binlog_format is now ROW. This is done so that Percona XtraDB Cluster is not started with wrong defaults leading to non-deterministic outcomes like crash. Bug fixed #1243228.
During the installation of percona-xtradb-cluster-garbd-3.x package, Debian tries to start it, but as the configuration is not set, it would fail to start and leave the installation in iF state. Bug fixed #1262171.
Runtime checks have been added for dynamic variables which are Galera incompatible. Bug fixed #1262188.
During the upgrade process, parallel applying could hit an unresolvable conflict when events were replicated from Percona XtraDB Cluster 5.5 to Percona XtraDB Cluster 5.6. Bug fixed #1267494.
FLUSH TABLES WITH READ LOCK behavior on the same connection was changed to conform to MySQL behavior. Bug fixed #1269085.
Read-only detection has been added in clustercheck, which can be helpful during major upgrades (this is used by xinetd for HAProxy etc.) Bug fixed #1269469.
GCache file allocation could fail if file size was a multiple of page size. Bug fixed #1259952.
Group remerge after partitioning event has been fixed. Bug fixed #1232747.
Fixed the OpenSSL linking exceptions. Bug fixed #1259063.
We did our best to eliminate bugs and problems during the testing release, but this is a software, so bugs are expected. If you encounter them, please report them to our bug tracking system.