There isn't currently, but draft versions aren't (haven't been) backwards compatible, so it's not completely reasonable to do -- especially since your schema should be specifying a `$schema` property pointing at their meta schema, which you'd need to update anyways. If you
are doing the latter though (setting a `$schema` property), when you change the `$schema` property, if you use `jsonschema.validators.validator_for` you will get the appropriate versioned validator (assuming jsonschema supports it).
Lemme know if that makes sense.
-J