Percona is glad to announce the release of Percona Server 5.5.47-37.7 on January 12, 2016. Based on MySQL 5.5.47, including all the bug fixes in it, Percona Server 5.5.47-37.7 is now the current stable release in the 5.5 series.
ALTER TABLEwithout the
ENGINEclause would silently change table engine if
enforce_storage_enginevariable was active. This could also result in system tables being changed to incompatible storage engines, breaking server operation. Bug fixed #1488055.