diff --git a/NEWS b/NEWS
index 5428a80f..836aa2fc 100644
--- a/NEWS
+++ b/NEWS
@@ -1,10 +1,14 @@
 0MQ version 4.1.4 stable, released on 2015/xx/xx
 ================================================
 
+* Fixed #1315 - socket monitor hangs if bind/setsockopt failed.
+
 * Fixed #1399 - assertion failure in tcp.cpp after network reconnect.
 
 * Fixed #1632 - build failure using latest libsodium.
 
+* Fixed #1644 - assertion failure in msg.cpp:390 on STREAM sockets.
+
 
 0MQ version 4.1.3 stable, released on 2015/08/17
 ================================================
diff --git a/src/stream_engine.cpp b/src/stream_engine.cpp
index 87186cc0..faca8929 100644
--- a/src/stream_engine.cpp
+++ b/src/stream_engine.cpp
@@ -842,7 +842,7 @@ int zmq::stream_engine_t::push_msg_to_session (msg_t *msg_)
 }
 
 int zmq::stream_engine_t::push_raw_msg_to_session (msg_t *msg_) {
-    if (metadata)
+    if (metadata && metadata != msg_->metadata())
         msg_->set_metadata(metadata);
     return push_msg_to_session(msg_);
 }