Can confirm, recently written scripts require modification pretty much every minor version. Take the limit on the default size of BigInts now. Why? Just... why?

Can confirm, recently written scripts require modification pretty much every minor version. Take the limit on the default size of BigInts now. Why? Just... why? I had to look into every script add the override line at the top (or check the entire script it ever assumes unlimited BigInt anywhere). No wonder there are still Python 2 scripts in use.