diff --git a/configure.ac b/configure.ac
index c165473c..da9d112c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -304,7 +304,7 @@ AC_CHECK_HEADER(libisofs/libisofs.h)
 
 dnl Check for proper library versions
 LIBBURN_REQUIRED=1.1.0
-LIBISOFS_REQUIRED=1.1.0
+LIBISOFS_REQUIRED=1.1.1
 PKG_CHECK_MODULES(LIBBURN, libburn-1 >= $LIBBURN_REQUIRED)
 PKG_CHECK_MODULES(LIBISOFS, libisofs-1 >= $LIBISOFS_REQUIRED)
 
diff --git a/libisoburn/libisoburn.h b/libisoburn/libisoburn.h
index ed05ac9f..2d24da55 100644
--- a/libisoburn/libisoburn.h
+++ b/libisoburn/libisoburn.h
@@ -242,7 +242,7 @@ void isoburn_version(int *major, int *minor, int *micro);
 */
 #define isoburn_libisofs_req_major  1
 #define isoburn_libisofs_req_minor  1
-#define isoburn_libisofs_req_micro  0 
+#define isoburn_libisofs_req_micro  1 
 
 /** The minimum version of libburn to be used with this version of libisoburn
     at compile time.
@@ -620,7 +620,8 @@ void isoburn_toc_session_get_leadout_entry(struct isoburn_toc_session *s,
     @since 0.1.6
     @param s The session handle
     @param num returns the number of tracks in the array
-    @return the address of the array of track handles
+    @return the address of the array of track handles,
+            NULL if no tracks are registered with session s
 */
 struct isoburn_toc_track **isoburn_toc_session_get_tracks(
                                       struct isoburn_toc_session *s, int *num);
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index b959bd25..fc07bfdb 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2011.07.03.093500"
+#define Xorriso_timestamP "2011.07.03.181840"