diff --git a/INSTALL b/INSTALL
index b7cee72..2cb9cea 100644
--- a/INSTALL
+++ b/INSTALL
@@ -9,16 +9,24 @@ in combination with the kernel's Kbuild system.
 	# make install
 
 
-Prerequirements
-===============
+Supported configurations for this release
+=========================================
 
-	* iptables 1.4.1
+	* iptables >= 1.4.1
+	  upper bound: iptables <= 1.4.3-rc1
 
-	* kernel-source >= 2.6.17 with prepared build/output directory
+	* kernel-source >= 2.6.17, no upper bound known
+	  with prepared build/output directory
 	  - CONFIG_NF_CONNTRACK or CONFIG_IP_NF_CONNTRACK
 	  - CONFIG_NF_CONNTRACK_MARK or CONFIG_IP_NF_CONNTRACK_MARK
 	    enabled =y or as module (=m)
 
+Extra notes:
+
+	* in the kernel 2.6.18.x series, >= 2.6.18.5 is required
+
+	* requires that no vendor backports interfere
+
 
 Selecting extensions
 ====================