Definitely send me the stacks for any crashes you might have, all I know is that it all works on my computer 
As far as a changelist, yes, that would be very nice. I have very limited time to work on Yomichan, so I tend to spend every last bit of it on writing code. Maybe one of these days I'll properly document everything
For the time being, you can look at the change history in git, that should give you an idea of what was going on with development
https://github.com/FooSoft/yomichan/commits/master
As far as a changelist, yes, that would be very nice. I have very limited time to work on Yomichan, so I tend to spend every last bit of it on writing code. Maybe one of these days I'll properly document everything
For the time being, you can look at the change history in git, that should give you an idea of what was going on with development
https://github.com/FooSoft/yomichan/commits/master