diff --git a/Shorewall/changelog.txt b/Shorewall/changelog.txt
index f37ed96b0..ed1cc7a78 100644
--- a/Shorewall/changelog.txt
+++ b/Shorewall/changelog.txt
@@ -8,6 +8,8 @@ Changes in Shorewall 4.4.20.2
 
 4)  Exclude ipsec traffic from sfilter.
 
+5)  Fix an interesting defect.
+
 Changes in Shorewall 4.4.20.1
 
 1)  Corrected FSF address.
diff --git a/Shorewall/known_problems.txt b/Shorewall/known_problems.txt
index 301b21c64..f3f19ff40 100644
--- a/Shorewall/known_problems.txt
+++ b/Shorewall/known_problems.txt
@@ -17,3 +17,23 @@
     The error occurs when explicit interface numbers are assigned in
     /etc/shorewall/tcdevices and the default HTB queuing discipline is
     used.
+
+3)  The 'sfilter' interface option introduced in 4.4.20 is not applied
+    to traffic addressed to the firewall itself.
+
+4)  IPSEC traffic is incorrectly included in the rules generated by
+    sfiltering.
+
+5)  Shorewall 4.4.20 can, under some circumstances, fail during
+    iptables-restore with a message such as the following:
+
+    iptables-restore v1.4.10: Couldn't load target
+    `dsl0_fwd':/usr/lib/xtables/libipt_dsl0_fwd.so: cannot open shared object
+    file: No such file or directory
+
+    Error occurred at line: 113
+    Try `iptables-restore -h' or 'iptables-restore --help' for more
+    information.
+
+    ERROR: iptables-restore Failed. Input is in
+    	   /var/lib/shorewall/.iptables-restore-input
diff --git a/Shorewall/releasenotes.txt b/Shorewall/releasenotes.txt
index 317b7c1a3..063898ac7 100644
--- a/Shorewall/releasenotes.txt
+++ b/Shorewall/releasenotes.txt
@@ -30,6 +30,20 @@ VI.   PROBLEMS CORRECTED AND NEW FEATURES IN PRIOR RELEASES
 
 4)  IPSEC traffic is now (correctly) excluded from sfilter.
 
+5)  Shorewall 4.4.20 could, under some circumstances, fail during
+    iptables-restore with a message such as the following:
+
+    iptables-restore v1.4.10: Couldn't load target
+    `dsl0_fwd':/usr/lib/xtables/libipt_dsl0_fwd.so: cannot open shared object
+    file: No such file or directory
+
+    Error occurred at line: 113
+    Try `iptables-restore -h' or 'iptables-restore --help' for more
+    information.
+
+    ERROR: iptables-restore Failed. Input is in
+    	   /var/lib/shorewall/.iptables-restore-input
+
 4.4.20.1
 
 1)  The address of the Free Software Foundation has been corrected in