DHCP next server IP disapears when upgrading from 2.0.3 to 2.1.
Not a real big deal, but be aware that when you upgrade to 2.1, if you are using PXE boot you will have to re-enter the next server IP address. It does not carry over from the previous version. Happened to me on two different firewalls.
Phone started wringing off the hook when we opened this morning, but it was a quick fix.