diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html
index b820e8d..2108909 100644
--- a/docs/ReleaseNotes.html
+++ b/docs/ReleaseNotes.html
@@ -196,6 +196,12 @@
   function names, file names and line numbers (by such tools as gdb or addr2line).
   Debug info for variables or function parameters is not produced, which reduces
   the size of the resulting binary.
+
+  <li><tt>-ftls-model</tt> controls which TLS model to use for thread-local
+  variables. This can be overridden per variable using the
+  <a href="#tlsmodel"><tt>tls_model</tt> attribute</a> mentioned above.
+  For more details, see the <a href="UsersManual.html#opt_ftls-model">User's
+  Manual</a>.</li>
 </ul>
 
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