Is it possible to perform such an update (5.1.2 to 5.6) without CDROM access? I've a down mail server and am away on vacation. I see that I can't update from 5.1.2 packages without a lot of dependency resolution, but with the version of Horde/IMP included in 5.1.2, I don't see an easy way to keep moving with 5.1.2.
Thanks,
Tim