In some email I received from Wolfgang Rupprecht, sie wrote:
> 
> 
> Scott Presnell writes:
> > Yes, there have been some bugs fixed in this regard since 1.4.1 which
> > contains
> > ipfilter 3.2.10.
> > You should be able to install ip_filter 3.3.3 over the 1.4.1
> > distribution.
> 
> I should have mentioned, I'm running -current as of yesterday.  Can't
> get sup to work today... ;-)
> 
> Is ip_filter 3.3.3 already in the current sources?  

No.

> Any idea how one would tell which ip_filter one has?  I can't seem to
> find a '--version' or '-?'  flag to any of the ipf family commands.

find "ipl.h" and look in there