I have upgraded to 1.4.2 sucessfully. I can confirm that the template linkage upgrades properly from 1.1.
However, I was trying to give my guest user RO access to all of Zabbix. I discovered that I can only add up to 14 rights entries.
This presents a problem as the only way that I can have user view all of Zabbix is to make them admin.
I also noticed that when I'm modifying "Host Group" properties I can only add 14 hosts.
Does anyone know if there is a better way to grant global RO?