*> * Cache-monitoring MBean - An MBean has been added for monitoring internal Derby caches. See the description of CacheManagerMBean in the "Introduction to the Derby MBeans" section of the Derby Server and Administration Guide.
* Optional Tool for Handling JSON Data - An optional tool has been added for packing query results into JSON documents and for unpacking JSON documents into tabular result sets. See the section on the simpleJson optional tool in the Derby Tools and Utilities Guide.
* Statistics aggregates - SQL Standard VAR_POP(), VAR_SAMP(), STDDEV_POP(), and STDDEV_SAMP() aggregates have been added. See the "Aggregates (set functions)" section in the Derby Reference Manual.