What is in OS3.5 or 3.9 that isn't in 3.1?

[keropi]

warpOS is the system/set-of-libs+programs that amigaos uses to utilise the ppc cpu's found in blizzardPPC and CyberStormPPC dual cpu cards...
if your hardware allows it upgrade to AOS3.9, it is a good improvement over 3.1 , it has good eye-candy :-D and many built-in features...