Possible compatibility problems with earlier versions marked with '*'.
+--- 2.0.21 2004/05/14
+
+Fix SSL libs for configure when --with-openssl=DIR is given.
+
+--- 2.0.20 2004/05/10
+
Add autoconf m4 macro YAZ_DOC for YAZ documentation setup (docbook).
SSL comstack now uses yaz.pem certificate file on server side