Software doesn't just stop working because you refused to upgrade your OS. Likely what happened is that you upgraded your software not realizing that the newer

Software doesn't just stop working because you refused to upgrade your OS. Likely what happened is that you upgraded your software not realizing that the newer version requires a newer OS. That's your fault for not reading the requirements. I've been on 10.4 Tiger since I bought my MBP back in 2006 and haven't had any existing software "stop working" because I didn't upgrade to Leopard. 3 years on an OS and it still works like the day I bought it. Still haven't reinstalled the OS which was a biannual thing with Windows.