diff --git a/core/doc/v526/index.html b/core/doc/v526/index.html
index df32958b108903b6ba6e0a13d24cdb3cd6f53eb9..73664fe463cbf391b05476dc7216d333a6c42e20 100644
--- a/core/doc/v526/index.html
+++ b/core/doc/v526/index.html
@@ -21,8 +21,11 @@ bits is zero).</li>
     <li>Prevent the unadvertent replacement of an arrow with a dot when the left side is actually a pointer</li>
     </ul>
 </li>
-<li>More user friendly trace-back in case of a crash, with hints where
-the problem might be.</li>
+<li>More user friendly stacktrace in case of a crash, with hints where
+the problem might be. On Linux and MacOS X these stacktraces are generated
+by the script $ROOTSYS/etc/gdb-backtrace.sh. Using the Root.StackTraceMessage
+resource one can customize the message printed by the script. The entire
+script can be replaced using the Root.StacktraceScript resource.</li>
 <li>Numerous minor bug fixes...</li>
 </ul>
 <h4>New module  <tt>editline</tt> </h4>