diff -r cc75c76972ee -r c0432d11811c src/network/socket/qudpsocket.cpp
--- a/src/network/socket/qudpsocket.cpp	Wed Apr 21 12:15:23 2010 +0300
+++ b/src/network/socket/qudpsocket.cpp	Wed Apr 21 20:15:53 2010 +0300
@@ -86,6 +86,16 @@
     \l{network/broadcastreceiver}{Broadcast Receiver} examples
     illustrate how to use QUdpSocket in applications.
 
+    \section1 Symbian Platform Security Requirements
+
+    On Symbian, processes which use this class must have the
+    \c NetworkServices platform security capability. If the client
+    process lacks this capability, operations will result in a panic.
+
+    Platform security capabilities are added via the
+    \l{qmake-variable-reference.html#target-capability}{TARGET.CAPABILITY}
+    qmake variable.
+
     \sa QTcpSocket
 */