diff --git a/changelog.txt b/changelog.txt
index 129a7680..2e35e322 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -25,6 +25,9 @@ Changes in version 1.3.1 (Fall 2009)
 * Added authentication methods that provide a possible authentication
   exception through an AuthenticationErrorCallback. (LDAP-192)
 
+* DefaultDirObjectFactory calls a Java5 version of the IllegalArgumentException
+  constructor. (LDAP 196).
+
 * Upgraded Spring to 2.5.6.SEC01. (LDAP-194)
 
 Changes in version 1.3.0 (Jan 2009)