--- ray/doc/notes/ReleaseNotes	2022/10/19 21:25:20	1.422
+++ ray/doc/notes/ReleaseNotes	2023/03/16 00:25:24	1.425
@@ -2582,3 +2582,18 @@ This addition was suggested by Peter Apian-Bennewitz a
 way to determine which version of Radiance is installed and what
 it supports, and is timely as we begin our refactoring of the
 rendering code.  There are no current plans to add this to rvu.
+
+Added falsecolor -odim, -orct, and -c0 options to overlay grid of
+values on image.  This was requested by Rob Shakespeare.
+
+Added -i* and -o* options in rhcopy for reading rays from the
+standard input and writing rays from holodeck to standard output.
+This will hopefully be useful in combining rholo with rcontrib.
+
+Added further checking for coincident (overlapping) flat surfaces,
+preferring front sides to back sides in the ray intersection
+calculation.  This only applies to rings and faces, as the other
+surface types would have required additional calculations to
+make them work.  Material transparency is still the primary
+consideration, now followed by ray hit side, followed by
+modifier definition order in the input.