--- a/CHANGES.html	Mon Dec 02 23:02:39 2013 +0100
+++ b/CHANGES.html	Tue Dec 03 11:25:59 2013 -0800
@@ -54,6 +54,18 @@
 <h1>Changes from ns-3.18.1 to ns-3.19</h1>
 
 <h2>New API:</h2>
+<ul>
+  <li> A new wifi extension for vehicular simulation support is available in the
+    src/wave directory.  The current code represents an interim capability to 
+    realize an IEEE 802.11p-compliant device, but without the WAVE extensions 
+    (which are planned for a later patch).  The WaveNetDevice modelled herein 
+    enforces that a WAVE-compliant physical layer (at 5.9 GHz) is selected, and 
+    does not require any association between devices (similar to an adhoc WiFi 
+    MAC), but is otherwise similar (at this time) to a WifiNetDevice.  WAVE 
+    capabililties of switching between control and service channels, or using 
+    multiple radios, are not yet modelled.
+  </li>
+</ul>
 
 <h2>Changes to existing API:</h2>
 <ul>