You must be a paid stooge. Nobody can be this stupid. We already have a
code repository, and it is you guys who are making the fork! This is like.. straight out of an Orwell novel: "the guys trying to keep the old rules are the ones trying to change it!"
True, you'll remain able to get the old version out of the repository, because it has all the past versions. If you intend never to change anything ever again, I guess that's enough.
Good luck with that.