WebAuthn and dealing with authenticator firmware updates

Per posting at:
https://groups.google.com/a/fidoalliance.org/forum/#!topic/fido-dev/vNs52dde7oY

I'm considering opening a WebAuthn issue for this topic to see if there is 
a POV amongst webauthn authors on dealing with authenticator firmware 
version updates. This note is simply to solicit any comments on the list 
before I do that.

Thanks,
Shane.