Hi Simon,
I'm sorry you're having trouble with the new version. To be honest, it was definitely a bit rushed because Apple set me a 48 hour deadline to submit an update or have the app removed from sale...
A lot of the automatic crash reports I'm getting look a lot like what you're describing. I have a rough idea where they might come from (probably has to do with changes in the code completion system), but I haven't really been able to reproduce the problem reliably.
I'm probably missing something, so I'd be very grateful if you could give me step-by-step instructions to get the app to crash. The one you mentioned about deleting a line of code seems like a good candidate (I think the pasting crash could be essentially the same thing). When I delete a line of code here, it doesn't crash, so I'm thinking it might have to do with the specific line you're deleting. Maybe something that breaks the code completion...
So if you could provide as much detail as possible about these crashes, that would really help me to fix this.
Thanks!