Add release notes

(cherry picked from commit 7d8e7b019440d7c5f72747c9f73519d582daa95e)

diff --git a/doc/arm/notes.xml b/doc/arm/notes.xml
index 23d2710f68dc47d1bd9dc905f7aae77113ef1290..02f9363b14fd7ec65d4e1f27b417e6c2af8d519d 100644 (file)
--- a/doc/arm/notes.xml
+++ b/doc/arm/notes.xml
@@ -112,6 +112,18 @@
          and IPv6 lookups. [GL #182]
        </para>
       </listitem>
+      <listitem>
+       <para>
+         A SipHash 2-4 based DNS Cookie (RFC 7873) algorithm has been added.
+       </para>
+       <para>
+         If you are running multiple DNS Servers (different versions of BIND 9
+         or DNS server from multiple vendors) responding from the same IP
+         address (anycast or load-balancing scenarios), you'll have to make
+         sure that all the servers are configured with the same DNS Cookie
+         algorithm and same Server Secret for the best performance.
+       </para>
+      </listitem>
     </itemizedlist>
   </section>