September 11th 2009- DataNucleus Access Platform 2.0 ("Bohr") Milestone 2 is released. DataNucleus Access Platform provides persistence and retrieval of Java objects to/from a wide range of datastores including RDBMS, db4o, LDAP, XML, and Excel. Version 2.0 Milestone 2 includes the following changes

• Addition of control over the Locale used for logging messages
• Add support for "embedded='true'" to mean embed the field - so the user doesn't have to specify the 'embedded' element also
• Bug fix to handling of embedded collections
• Fix to generic query compilation for words starting "new"
• Fix to JDOQL compilation of subquery FROM clause
• Fix to the attach of nested embedded objects
• Improvements to the query results cache to allow pinning/unpinning and to not validate
• Fix to JTA handling introduced in M1 release
• Add support for "detachAllOnRollback"
• Removal of unnecessary flush on 1-1 relation
• Bug fix to usage when invoked path has "+" symbol
• Addition of plugin for persistence of primary JodaTime types, and simple querying for RDBMS
• Cache : Support for pinning/unpinning of query results with Memcache/javax.cache
• Enhancer : Bug fix to return code from enhancer when run from command line
• JPA : Support for JPA "extended persistence context"
• JPA : Fix to use of @EmbeddedId in extended persistence context
• JPA : Support for optional attribute of @ManyToOne
• LDAP : Support for persistence of recursive object graph to hierarchical structure
• RDBMS : Addition of support for persistence to Oracle TimesTen datastore (Anton Troshin)
• RDBMS : JDOQL2 support for "SELECT this" queries, and DISTINCT
• RDBMS : JDOQL2 support for temporal queries
• RDBMS : JDOQL2 support for subqueries
• RDBMS : JPQL2 support for subqueries
• RDBMS : JPQL2 support for bulk update/delete by query
• RDBMS : SQL API fixes to cater for composite PKs and ordering of expressions
• RDBMS : Improvements to choice of whether to use UNION or discriminator for inheritance detection
• RDBMS : Some fixes to handling of temporal types to add more flexibility

This release is downloadable under an Apache 2 license from the DataNucleus community site.