diff --git a/RELNOTES b/RELNOTES
index 0235313..907dcd7 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -6,8 +6,12 @@ This is a maintenance release incorporating a number of minor patches
 accumulated since the previous release.
 
 This release corresponds to the code used in FreeBSD-CURRENT as of the
-release date.  It may or may not build on other platforms; previous
-releases have been built on NetBSD and (with partial success) MacOS X.
+release date.  It is also known to build cleanly on NetBSD 1.6 and
+OpenBSD 3.1.  It may or may not build on other platforms; you will
+need a BSD-compatible make(1) (NetBSD's make(1) is easy to port to
+most POSIX platforms).  Previous versions were successfully built on
+MacOS X 10.1, but there seem to be issues with the heavily modified
+version of GCC 3.1 that ships with MacOS X 10.2.
 
 The library itself is complete.  Documentation exists in the form of
 man pages for the library functions.  These man pages are generated by
@@ -26,4 +30,4 @@ proper credit for your contribution.
 
 Please direct bug reports and inquiries to des@freebsd.org.
 
-$P4: //depot/projects/openpam/RELNOTES#15 $
+$P4: //depot/projects/openpam/RELNOTES#16 $