I’ve pulled the image per the Release Notes, but I still don’t understand why Supervisor 2023.08.1 isn’t being downloaded to my system. It’s a stable release and I’m still on 2023.07.1. I’ve also tried to load it using CLI, but it reports no updates.
https://github.com/home-assistant/supervisor/releases/tag/2023.08.1
Edit: After finding out the update integration did not update the entity update.home_assistant_supervisor_update, then seeing this log (redacted) entry in the supervisor log:
[supervisor.api.ingress] Stream error with http://172.30.33.2:1337/stable-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/static/out/vs/loader.js: Cannot write to closing transport
…and then finding out my Ethernet was misconfigured (I have no idea how that happened), I finally got it to work.
YMMV