These bug fixes are expected on preview orgs starting October 25, 2017, and on production orgs starting November 8, 2017.
The default ports in the App Wizard in the Developer Console have been changed from 3000 to 8080. (OKTA-144916)
An error string was unclear. The string is returned when a session times out while waiting for a user to enter MFA credentials during an OpenID Connect /authorize call. (OKTA-143916)