Yeah, sorry buddy, but that's just not how modern software dev works. Platforms change, code gets outdated, and whilst older platforms "work", they're likely not taking advantage of all the features that have been added to platforms since that time.
It's much easier/better when you are forced into dealing with the change. At least people can laugh at how annoyed others get when they cry "but you broke everything!".
It's called progress. Get with the times or get outdated.