Currently there's only an alpha release, and it causes some errors that are detected by our unit tests. However, once things become more stable we should consider whether we should upgrade, and if so, what changes will need to be made.

Version 3.0 introduces support for Draft-06. This could potentially allow us to update the ASDF Standard to support Draft-06 as well. However, if we are really serious about providing/supporting multiple implementations of ASDF, we need to look at the lowest common denominator across JSON Schema implementations, which might still be Draft-04.