I've recently upgraded a customer's server to 5.0.6 and it seems the upgrade (from 5.0.4) broke iCal usage: existing calendars still work, but subscribing to new ones (using CalDav) doesn't work. I've created a bug report here:
Bug 29568 – iCal support with multiple domains completely broken in 5.0.6
Anyone seeing the same thing? Any things I could try (besides downgrading)?
Frank