Differences in PF between FBSD 8.2 & 9.0?

[Doug Sampson]

> I got bitten by PF when upgrading from 8.2 to 9.0. It refused to allow
> any incoming mail. I'm using spamd in conjunction with pf. I use a
> combination of natting along with redirections in conjunction with the
> normal pass/block rules.
> 
> I cannot for the life of me find a list of significant changes in pf
> between these two versions. Is there a link to where I can peruse such
> changes and adjust pf.conf accordingly?
> 
> Is the pf configuration for OpenBSD 5.0 the same as OpenBSD 4.5? Is it
> safe to use OpenBSD 5.0's config pages on pf when configuring pf.conf
> for FBSD 9.0?
> 
> I ran 'pfctl -vvnf /etc/pf.conf' and that didn't burp up any error
> messages as far as I can determine.
> 

I forgot to mention that I'm running 9.0-RELEASE.

~Doug