Firewall Options

[Robert Simmons]

Are there plans to update ipfilter or pf to current versions?
ipfilter is currently at 5.1.2, but the version in FreeBSD is 4.1.28
from 2007.

On the pf side, the version in FreeBSD is 4.5, but the current version
I would understand to be 5.2.  The version in FreeBSD is pre-4.7, so
much of the syntax in the current documentation is different and does
not work in this older version.

Is IPFW the only maintained firewall option, or is there a way to
build either of the above as ports?