Hello everybody.
I think I've discovered a bug related to DDNS service with this new release.
I cannot obtain a Let's Encrypt certificate (it gets stuck in getting Authorization...)
LE renewals have always been quirky because a router is not really intended for that (as the validation requires your router to be remotely accessible for validation, something a web server would naturally be capable of). You could try deleting the existing LE content from jffs to force a new certificate to be issued, but if the issue is your router isn`t remotely reachable, then there`s not much you can do about it.
However if your DDNS doesn't get updated properly, then LE cannot reach you for validation. Enable ddns debugging to see why your update is failing.
Code:
nvram set ddns_debug=1 && nvram commit && service restart_ddns