It displays a 500 : Internal Server Error message
Confirmed. We're moving some things between servers at the moment, which is probably the cause.
Should be working now.
Yes, it is. Thank you.
There appears to be an update available
However, the list all refers to version 12.x releases. I do realize that it is still early days, but it would be nice to be able to select the available update and read what the changes are.
You have to come to the forum for that while we're still in public beta.
We'll probably be doing a couple of releases a week for a while and we don't want to flood the list with items which would get in the way for people using Opus 12 who aren't interested in the 13 beta.