Backwards-compatibility setting

[Erik Thuning]

Hi!

I noticed my site is running compatibility_level=0, which I want to 
change. From what I can gather at 
http://www.postfix.org/COMPATIBILITY_README.html, it seems that the 
compatibility messages largely get triggered when postfix comes across a 
message where they are relevant, not on service startup etc.

So, I ran a quick check through all my servers' mail logs (4 weeks back) 
looking for these messages, and nothing showed up. Given that these logs 
actually reflect typical usage, it seems like I'm in the clear.

Is there anything else I can do to verify that none of my setings will 
get changed in a surprising manner when switching compatibility levels?

Thanks,
Erik