I am part of the development team and I do work partially on weekend. Again, upgrade to see if resolved.
We do not have release notes at this time as time is strapped, we don't have time to write a massive article on every little thing changed. A lot gets changed, a lot fixed, a lot improved.
If you have problems with CBSubs 1.0.2, you let us know and we fix it, and if it's production stopping then you revert to CBSubs 1.0.1 and let us know and we'll fix it then as well.
CBSubs updates a users subscription based on IPN sent from paypal, ensure your paypal account is configured properly so when paypal does send these notices to CBSubs it will update users properly.