I decided to test out the new version of grasshopper today, and have come across two bugs, one serious and one absolutely deadly.
The serious: While changing a slider's value, grasshopper and rhino froze, becoming unresponsive but without throwing an exception. This has happened twice today. The first time I hadn't saved for about two hours, so, after swearing loudly I made sure I hit save every five minutes from then on, which is how I came across... The absolutely deadly: The second time the above error happened I reloaded only to find that the last couple of times I had hit save had seemed to have no effect. I'm not sure why this might be, though I have a suspicion it may be due to me saving while having a VBscript window open (in it's new mini-form, which incidentally is a welcome addition - it was annoying having to close the script every time you wanted to shuffle the windows around), though it also didn't save changes I had made to the definition outside the script, so perhaps not.