[Elecraft] KDSP2 firmware question

[John Shadle]

What is the difference between version 3.0 and version 3.1? Is it worth 
the $29 + shipping to upgrade from 3.0 to 3.1 other than the reason of 
saying "I have the latest firmware"? Is 3.0 buggy or not a full-featured 
at 3.1?

Just wondering if someone can shed some light on this subject. I was 
looking for a changelog but couldn't find one (maybe the manual for the 
KDSP2?).

Thanks.
-john W4PAH