+Contact: Naman Sood <naman@freebsdfoundation.org> +
+Contact: Kristof Provost <kp@FreeBSD.org>
+
+man:pf[4] is one of the firewalls included in FreeBSD, and is probably the most popular.
+pf was created by the OpenBSD project and subsequently ported to FreeBSD.
+
+==== Backport OpenBSD Syntax
+
+Kajetan introduced the OpenBSD syntax of "scrub" operations in "match" and "pass" rules.
+Existing rules remain supported, but now OpenBSD style "scrub" configuration is also supported.
+
+==== pfsync Protocol Versioning
+
+The man:pfsync[4] protocol version can now be configured, allowing for protocol changes while still supporting state synchronisation between disparate kernel versions.
+The primary benefit is to allow protocol changes enabling new functionality.
+
+==== pfsync: Transport over IPv6
+
+pfsync traffic can now be carried over IPv6 as well.
+Naman finished the work started by Luiz Amaral.
+
+==== SCTP
+
+There is work in progres to support SCTP in pf.
+That support includes filtering on port numbers, state tracking, pfsync failover and returning ABORT chunks for rejected connections.