pfSense

There are a number of issues with configs upgraded from 1.2.x -> 2.0:

1. a) All 6 servers were disabled on the upgrade I did. On the original config, the first two were disabled with the rest enabled.
b) Two of the disabled servers were actually running, editing and saving their entries killed them.
2. a) 'dev tunXX' custom option breaks the upgraded config, as it has a 'dev ovpnsX' specified in the config. This will break many 1.2.x installs.
b) and there doesn't appear to be a way to override the hard coded device (so the interface isn't guaranteed to stay the same, so cannot safely be assigned). It will only stay the same as long as no clients or servers are removed above it in the list.
3. Servers with 'local x.x.x.x' custom options break because the config is converted to WAN and specifies 'local $wan_ip'. Ideal fix, find out where that IP is (a CARP VIP, interface IP) and automatically assign the interface as that "local" specification and remove the custom option. Adequate alternative: if 'local x.x.x.x' is specified as a custom option, skip the auto-added custom option.
4. LZO compression is disabled on clients after upgrade, when it was enabled before upgrade

There may be others.