--- a/RELEASE_NOTES	Thu May 09 22:38:09 2013 -0700
+++ b/RELEASE_NOTES	Thu May 09 22:43:52 2013 -0700
@@ -9,8 +9,8 @@
 Consult the file CHANGES.html for more detailed information about changed
 API and behavior across ns-3 releases.
 
-Release 3-dev
-=============
+Release 3.17
+============
 
 Availability
 ------------
@@ -18,7 +18,15 @@
 
 Supported platforms
 -------------------
-To be determined
+These platforms have been tested; others may work also:
+- Fedora Core 18 (32/64 bit) with g++-4.7.2
+- Fedora Core 17 (32/64 bit) with g++-4.7.0
+- Ubuntu 13.04 (32/64 bit) with g++-4.7.3
+- Ubuntu 12.10 (32/64 bit) with g++-4.6.3
+- Ubuntu 12.04 (32/64 bit) with g++-4.6.3
+- Ubuntu 10.04.4 LTS (64 bit) with g++-4.4.3
+- OS X Mountain Lion 10.8.3 with g++-4.2.1
+- FreeBSD 9.1-RELEASE (64 bit) with g++-4.2.1
 
 New user-visible features
 -------------------------