7a is failing to upgrade for me. I've downloaded the version from the ACP and from the client area, both to no avail. I get an EX0 error, saying "An unknown error occurred ". On the bright side, the ACP still works. Are there any IPS-specific logs I can check (PHP isn't giving me any errors)?

Also checked the dir and group permissions on everything.

I have the same problem, this is the first time I am trying to upgrade test installation, any idea what's causing this?