--- ray/doc/notes/ReleaseNotes	2024/04/16 23:36:58	1.448
+++ ray/doc/notes/ReleaseNotes	2024/09/10 20:24:42	1.457
@@ -2690,3 +2690,30 @@ the calcomp routines used for rendering and in rcalc, 
 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.
+
+Added rcomb -n option for multi-processing of very large matrices.
+
+Made it so rsplit and rlam can handle any number of input files
+up to active open file descriptor limit.
+
+Taoning Wang added genssky tool for generating spectral sky
+descriptions.
+
+Taoning added gensdaymtx utility based on gendaymtx, and
+added epw2wea -a option to include required information.
+
+Fixed bug introduced in Auguest 2022 (5.4 release) in distant
+light source sampling, which caused aiming failures.  (Thanks
+to Mike DiPompeo of LightStanza for reporting the issue.)
+
+Added rxpict rendering tool based on C++ RpictSimulManager class.
+Multi-processing and spectral output are supported.
+
+Added crude ability to read and convert spectra to RGB in ximage,
+ra_bmp, and ra_rgbe programs.  Also updated fast tone-mapping
+library to handle spectral HSR inputs at the same time.