Recursive persistence and cascading deletes, custom collections and embedded mappings, execute or load datasets with any raw sql, more helpful exceptions on initialization, and more.  A big thank you goes out to Ken Muse and Allan Ritchie for their contributions -- see the read more link for more details.

• Use any raw valid sql statement with GetDataSet or ExecuteCommand.
• Thanks to Ken Muse for recursive persistence and cascading delete help.
• Recursively persist all related child changes with PersistDepth.ObjectGraph.
• Optionally enable cascading deletes on any relation in the xml mappings.
• ObjectSet and ObjectList now both support Add, RemoveByKey, and Clear.
• ObjectList also supports the more standard IList Add and Remove syntax.
• Thanks to Allan Ritchie for custom collections and embedded mappings.
• GetCollection allows you to return strongly typed custom IList collections.
• Use embedded resources, or other streams, instead of files, for mappings.
• Thanks to Jason Mesches and Oakleaf Enterprises for OPath conversion.
• QueryHelper supports most standard OPath statements in GetExpression.
• ORMapperException was added to be the base class for internal exceptions.
• MappingException and PersistenceException sub-classes were also added.
• More initialization checks were added, and more helpful exception messages.
• The WilsonORMapper assembly is now explicitly marked as CLSCompliant.
• Support class hierarchies and simple mapping inheritance by Jerry Shea.
• Bug Fix: Optimistic concurrency now works for deletes, not just updates.
• Bug Fix: Select Stored Procedures work independent of the order of fields.
• Bug Fix: The OnCreated event is raised after auto generated keys are set.
• Bug Fix: Recursive relationships for non-lazy-loading scenarios now work.
• Bug Fix: Binary fields with null values should now work, just like others.
• Bug Fix: Added additional error handling in ObjectReader finalizer method.
• ORHelper: Last settings are saved to the registry and restored automatically.