Checkpoint restore

[mathcrypto]

In theory, anyone is able to create a new version of the client and then it’s up to them whether they succeed in convincing people to switch to that new version or not. Spacemesh does not have any “official” power with checkpoint restore that would force people to switch to a new version. We should feel confident enough with the way the network works that we don’t need code in place to make this dangerous process easy.