@tai.zhang

You can find the release purpose in README file inside RFA.NET package.

2.2 Features and Enhancements
	This is a maintenance release of the RFA .NET product.
        - This release contains bug fixes. Please see 
          section "7. LOADS MR HISTORY" to see what changes were included in 
          this maintenance release.
        - This release provides both 32-bit and 64-bit libraries.

For the list of bug fixes, please refer to the README file inside RFA.NET package.