version of OpenBSD and PF

Mohsen Pahlevanzadeh <[email protected]> Mon, 23 Mar 2015 08:07:56 +0430

Newsgroups	gmane.os.openbsd.pf
Message-ID	<[email protected]>

Dear All,

As you know, version of PF related of openbsd's release, And since of of 
a specific version of OpenBSD, PF syntax has been rewritten. i have two 
question :
1. What's the given openbsd version?
2. hwo can i retrive the given openbsd and pf version?

Why i asked same question?  i'm writing article about PF and i explain 
version and synyax error.

--Regards
Mohsen