[CentOS] postscreen and clamav on CentOS 6.8

A friend runs 6.8 but would like to add postscreen
to his email server.  It is provided with postfix
version 2.8 and up.  The newest postfix for 6.8
is 2.6.x.  Any likelyhood it will be further
updated?  Or is there another source for newer
postfix versions for CentOS 6.8?

Similar query for the clamav db, now at 0.99.1
with 0.99.2 out for quite some time.

Jon
-- 
Jon H. LaBadie                 jon at jgcomp.com
 11226 South Shore Rd.          (703) 787-0688 (H)
 Reston, VA  20190              (703) 935-6720 (C)