We have just released FEI 2.2! This release contains some interesting new features, and we have put together a short video to demonstrate them (~4.5 minutes). 
The MAPI comparison capability has been a game changer for me. Comparing MAPI properties is a technique I’ve used in the past, but the new feature in FEI makes the process much more streamlined.
I hope you find the improvements helpful! You can find the changelog below. The new version is available for download 
here when you are ready. Enjoy!