wizard to do the same.
Open putty (or your favorite terminal app)
ssh to the netscaler you want to make the change on
type - set ns hostname <hostname>
Note - A reboot is not necessary, but the change you are making will effect licensing, so it is best to reboot and test.
The "Setup Wizard" box was removed and replaced with a inconspicuous gear.
Hit that gear and you will get prompted with the original setup wizard that allows you to set the IP, netmask, hostname, DNS, and Time zone.
Plus it lets you manage the licenses if needed.
Same thing, reboot after and test.