I've updated 3 installations now of OSClass from v2.2.3 to 2.3.
The actual updates were all successful, however the prices were messed up in all 3 upgrades. The dollar amounts are wrong, 4-digit prices became negative, and there are numbers after the decimal point that weren't there before. This all occurred in all 3 updates. Thankfully I'm not "live" yet.
Also I noticed (and not happy about), the fact that any ad that did NOT have a price now says "FREE". It use to just say "Contact Seller". I know I can change this as well, but it was very unexpected.