Map fields or properties now, use multiple mapping files, relationships with composite keys, better exception handling, and more.  A big thank you goes out to Chris Schletter and Nick Franceschina for their contributions -- see the read more link for more details.

• Map Properties or Member Fields -- My Preference is Member Fields
• Mappings can be in defined in Multiple Files or Embedded Resources
• New ExecuteScalar Method and Stored Proc Override for ExecuteCommand
• Relationships for Composite Keys -- Warning: Very Little Testing
• Added Support for Output Parameters with Stored Procedure Options
• Improved Embedded Objects -- Multiple Levels, Interface Optional
• Mapper attempts to Resolve Mapping Paths or Load Embedded Resources
• Better Exception Handling, No longer Catching and Eating Exceptions
• Improved Parameter Typing necessary for Providers that do not Check
• Recursive BaseType Check for Inheritance Support in ObjectSet Add
• Added Date Delimiter for Access, Date Format for Access and Oracle
• Support Providers that do not support Timeouts, like MySql ByteFX
• Default Parameter Names for Fields with Spaces/Dashes in their Names
• ObjectHolder Key Setter for Null Values, Other Isolated Bug Fixes
• ORHelper: Small Improvements and Fixes, VB Code for Initialization
• And a special thanks to each of the following contributors to v3.1:
  • Chris Schletter - Mapping Properties, Embedded Objects
  • Nick Franceschina - Help with Composite Key Relations
  • Stephan Wagner - Command Timeouts, Parameter Names
  • Ken Muse - Date Delimiter, Date Format
  • Alister McIntyre - Stored Proc Output Parameters
  • Stephen Roughley - Default Parameter Names
  • Gerrod Thomas - ObjectHolder Key Setter
  • Thanks to others too - some were sent in by more than one.