diff -urN ../p0f-3.09b.orig/p0f.fp ./p0f.fp
--- ../p0f-3.09b.orig/p0f.fp	2016-04-16 03:51:13.000000000 +0300
+++ ./p0f.fp	2018-09-03 19:51:03.142839000 +0300
@@ -96,6 +96,11 @@
 sig   = *:64:0:*:mss*20,10:mss,sok,ts,nop,ws:df,id+:0
 sig   = *:64:0:*:mss*20,7:mss,sok,ts,nop,ws:df,id+:0
 
+label = s:unix:Linux:4.4.0 and newer
+; Linux 4.4.0-134-generic, Ubuntu 16.04.5 LTS, IPv6
+; Linux 4.15.0-33-generic, Ubuntu 18.04.1 LTS, IPv6
+sig   = 6:64:0:*:mss*20,7:mss,sok,ts,nop,ws:flow:0
+
 label = s:unix:Linux:3.1-3.10
 sig   = *:64:0:*:mss*10,4:mss,sok,ts,nop,ws:df,id+:0
 sig   = *:64:0:*:mss*10,5:mss,sok,ts,nop,ws:df,id+:0
@@ -163,6 +168,11 @@
 label = g:unix:Linux:2.2.x-3.x
 sig   = *:64:0:*:*,*:mss,sok,ts,nop,ws:df,id+:0
 
+label = g:unix:Linux:4.9.x
+; Linux 4.9.65-3+deb9u2, Debian GNU/Linux 9, IPv6
+; Linux 4.9.110-1, Debian GNU/Linux 9, IPv6
+sig   = *:64:0:*:*,*:mss,sok,ts,nop,ws:flow:0
+
 label = g:unix:Linux:2.2.x-3.x (no timestamps)
 sig   = *:64:0:*:*,*:mss,nop,nop,sok,nop,ws:df,id+:0
 
@@ -234,6 +244,10 @@
 label = s:unix:FreeBSD:9.x or newer
 sig   = *:64:0:*:65535,6:mss,nop,ws,sok,ts:df,id+:0
 
+label = s:unix:FreeBSD:10.x or newer
+; FreeBSD 10.3, FreeBSD 11.1, IPv6
+sig   = 6:64:0:*:65535,6:mss,nop,ws,sok,ts:flow:0
+
 label = s:unix:FreeBSD:8.x
 sig   = *:64:0:*:65535,3:mss,nop,ws,sok,ts:df,id+:0