--- ray/doc/notes/ReleaseNotes	2024/09/20 17:39:12	1.461
+++ ray/doc/notes/ReleaseNotes	2025/04/02 00:55:27	1.480
@@ -2714,14 +2714,9 @@ to Mike DiPompeo of LightStanza for reporting the issu
 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.  HSR
-input handling was added in a similar fashion to pcond and pvalue.
-
 Wrote rxpiece tool that will render pictures using tiling and
 can handle different output formats and hyperspectral pictures.
-Only runs on a single machine, however -- now NFS locking on
+Only runs on a single machine, however -- no NFS locking on
 shared volumes.  Mainly a demonstration tool for RpictSimulManager
 C++ class, but may have its uses.
 
@@ -2729,5 +2724,62 @@ Fixed a bug in BSDF sampling of sources pointed out by
 David Geisler-Moroder, which tended to overestimate specular
 contributions for some BSDFs.
 
+Added crude ability to read and convert spectra to RGB in ximage,
+ra_bmp, ra_ps, and ra_rgbe programs.  Also updated fast tone-mapping
+library to handle spectral HSR inputs at the same time.  HSR
+input handling was added in a similar fashion to pcond and pvalue
+for convenience.
+
+Added handling of hyperspectral images to normtiff, a handy program
+for quickly tone-mapping Radiance RGBE, XYZE, and now hyperspectral
+pictures, as well as IEEE float or LogLuv TIFFs.
+
 Added handling of hyperspectral pictures to pextrem, though
 results are still reported in RGB.
+
+Added accurate conversion of hyperspectral pictures to ra_xyze.
+
+Added hyperspectral picture conversion to ra_tiff, with accurate
+color when targeting 16-bit/comp., LogLuv, and float utput,
+and the approximate method for 24-bit RGB.
+
+Taoning added genssky -L option to specify global and diffuse
+illuminance values for output calibration.
+
+Created C++ class for rcontrib and example tool rxcontrib, which
+is an optional compile in the src/rt directory.  The output
+model is more general in some respects and the operations more
+efficient, but standard output is not supported, nor is ASCII
+results data.
+
+Added strnstr.c compatibility module in ray/src/common, since
+it isn't present on Linux derivatives.
+
+Added WGMDfunc material type with programmable roughness and
+separate modifier paths for the different components.
+
+Added gensurf -i option at the request of Peter Apian-Bennewitz
+to reverse surface normals, mostly for data input, when it is
+a bit more difficult to adjust.
+
+Added rad -N option to rholo call for multiprocessing when
+mkillum and/or mkpmap are involved in octree prep.
+
+Added ability of gendaymtx to read EPW as well as WEA files.
+When EPW input is provided, the 3-hour average dew point is
+used to compute a more accurate precipitable water content
+value.  It currently does not use these data directly from
+the EPW input, relying instead on a dew-point-to-W calculation.
+This follows the request and recommendations of David G-M.
+
+Removed limitation in rfluxmtx, which was disallowing distant
+and local receivers. Found this to be a perfectly valid approach
+for some annual daylighting scenarios.
+
+Wrote new pvsum tool to handle cases dctimestep can't, like
+spectral input pictures.  It also adds a -N option for multi-
+processing on Unix machines, which utilizes memory-mapped
+inputs for efficient i/o sharing.
+
+Made it so genBSDF can use spectral rendering for a
+more accurate photometric result.