Update debian changelog to mention new TLS-mismatch behaviour

Author: salcock

debian/changelog

@@ -29,6 +29,8 @@ openli (1.0.6-1) unstable; urgency=medium
     padded to the minimum frame size.
   * Fix provisioner crashes after expiring an unauthorised client that has
     connected to one of its listening ports.
+  * Components that are not using TLS will now immediately exit after
+    connecting to a component that is using TLS (and vice versa).
 
  -- Shane Alcock <shane.alcock@waikato.ac.nz>  Wed, 2 Sep 2020 17:17:53 +1200