No Version 5 didnt have the additions I wanted , but just finished a VNR done all in 5 , and all went well, no hitches smooth edit.Thats kinda important.
It's very important. Everything still works. You can go straight to V5 without removing V4 (but V5 projects don't open in V4 so be careful). Some small things are better and you can learn to use the new features as you go.
Okay, that's not a reason to upgrade but it's still important.