diff --git a/www.i2p2/pages/i2cp_spec.html b/www.i2p2/pages/i2cp_spec.html
index c8804ec7..239361d6 100644
--- a/www.i2p2/pages/i2cp_spec.html
+++ b/www.i2p2/pages/i2cp_spec.html
@@ -1031,7 +1031,19 @@ Definitions are subject to change. Use the SendMessageOptions class to construct
 </p><p>
 Bit order: 15...0
 </p><p>
-Bits 15-9: Unused, must be zero
+Bits 15-11: Unused, must be zero
+</p><p>
+Bits 10-9: Message Reliability Override (scheduled for release 0.9.10)
+<table border=1>
+<tr><th>Field value<th>Description
+<tr><td align="center">00<td>Use session setting i2cp.messageReliabiltiy (default)
+<tr><td align="center">01<td>Use "best effort" message reliabiltiy for this message,
+    overriding the session setting. The router will send one or more MessageStatusMessages in response.
+<tr><td align="center">10<td>Use "guaranteed" message reliabiltiy for this message,
+    overriding the session setting. The router will send one or more MessageStatusMessages in response.
+<tr><td align="center">11<td>Unused. Use a nonce value of 0 to force "none" and override a session setting
+    of "best effort" or "guaranteed".
+</table>
 </p><p>
 Bit 8: If 1, don't send lease set
 </p><p>