In 5.2, EVN and EDG users have additional triple store options – Apache Jena TDB and MarkLogic databases. At the same time, load performance of SDB has been improved, memory usage lowered and server startup times reduced. SDB performance improvements and the need to fix a long standing issue with proliferation of prefixes on export, required a modification of the SDB schema. Users upgrading to release 5.2 will need to follow a provided data migration procedure. Please download this package for detailed instructions and conversion tools to assist in the process – TopBraid Data Migration (5.1 to 5.2).