diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
new file mode 100644
index 126d614..337a7a2
*** a/doc/src/sgml/release-12.sgml
--- b/doc/src/sgml/release-12.sgml
*************** Author: Peter Eisentraut <peter_e@gmx.ne
*** 654,659 ****
--- 654,681 ----
       </para>
      </listitem>
  
+     <listitem>
+ <!--
+ Author: Michael Paquier <michael@paquier.xyz>
+ 2018-09-12 [e7a221797] Parse more strictly integer parameters from connection s
+ -->
+ 
+      <para>
+       Parse libpq integer connection parameters more strictly (Fabien
+       Coelho)
+      </para> 
+ 
+      <para>
+       In previous releases, using an incorrect integer value for
+       connection parameters <literal>connect_timeout</literal>,
+       <literal>keepalives</literal>, <literal>keepalives_count</literal>,
+       <literal>keepalives_idle</literal>,
+       <literal>keepalives_interval</literal> and <literal>port</literal>
+       resulted in libpq either ignoring those values or failing with
+       incorrect error messages.
+      </para> 
+     </listitem>
+     
     </itemizedlist>
  
    </sect2>