--- ray/doc/notes/ReleaseNotes	2024/01/04 01:55:42	1.442
+++ ray/doc/notes/ReleaseNotes	2024/05/17 20:50:57	1.450
@@ -2671,4 +2671,27 @@ put out as many color channels as specified in any -cs
 (default is 3 for RGB).
 
 Added ability of mgf2rad to convert spectral data at least
-for light, glow, plastic, and metal primitive types.
+for light, glow, plastic, and metal primitive types.  Need
+to use new '-s' option to get new output.
+
+Added handling of spectral images to rcode2bmp script.
+
+Minor change to rcollate to allow explicit byte records to
+be any specified length without checks against header input.
+
+Added new hemisphere type to rfluxmtx, "h=cie" for CIE sky
+scanner positions.  These are 145 patches with identical
+row counts to Tregenza, but starting from a different
+azimuth and reversing row directions at adjacent altitudes.
+
+Added optimization for long argument lists and arrays in
+the calcomp routines used for rendering and in rcalc, etc.
+
+Added error estimate spreading to ambient super-sampling
+algorithm (-as) to improve performance especially in
+scenes with sharp cut-offs.
+
+Added -i option to gendaymtx to match -i option of gendaylit.
+Thanks to Yongqing for initial implementation.
+
+Changed rcrop so negative #rows or #cols counts back from end.