I am unable to use `freebsd-update` to upgrade from 13.1-RC3 to 13.1-RC4 on arm64; after poking around in the script itself it seems that the file http://update.freebsd.org/13.1-RC4/arm64/latest.ssl does not exist, which prevents the upgrade from progressing.
The 13.1-RC4 builds for arm64 failed, and as such, there are no freebsd-update binary upgrade bits available.
That's too bad. Is there a way to see the status of a particular build? Also, is there any way I could help fix it?
It is already fixed in RC5. It was a transient failure.