This new release is a lot more stable and comes with long list of bug fixes, enhancements, and patches. This is more or less of a stabilization patch with some new features thrown in and includes performance improvement and enhanced security features. DotNetNuke 3.3.5/4.3.5 was put through a 2 week long beta testing phase with the Platinum Benefactors and at present it is in active use on the official website for DotNetNuke. Given below is a brief list that will give you a summary of the various issues resolved with this new version. You must go through this summary and the detailed list so that your DotNetNuke core is running with the advantage of all the fixes and improvements.