HI! It seems there is support for draft-wahl-ldap-session in OpenLDAP's source since 2007 but it seems not to be enabled in a default build. Is it sufficient to compile with -DSLAP_CONTROL_X_SESSION_TRACKING or do I also have to use -DLDAP_DEVEL (because of ifdef in ldap.h). The latter does not work with 2.4.26... Should I file an ITS for it? Ciao, Michael.