Today version 3.0.9 of WP OAuth Server was released and addresses some extremely important issues.
WP OAuth Server has supported OpenID for a few versions but in version 3.0.9 we added OpenID Discovery. Discovery allows for clients to dynamically find endpoints by visiting /.well-known endpoints. WP OAuth Server also provides the ability to sign tokens on behalf of the server which then can be validated on a clients end.
To download the latest version simply update within WordPress or visit the download page.