Actually, for the converting part, it should work directly with v1.0. (without validation).
The reason it only supports v0.8 is because that our team is currently using v0.8 and there are tons of use case can be used as the test case.
As for the validation, since it is not possible to validate the data type using schema, so there will be a bit work. More than happy to accept PR to improve this lib. Thanks.