--- ray/doc/notes/ReleaseNotes	2022/04/26 03:00:02	1.415
+++ ray/doc/notes/ReleaseNotes	2022/08/21 16:20:42	1.421
@@ -2550,3 +2550,28 @@ routine discovered by Jon Sargent of Solemma.  This af
 that had zero radiance, such as black backgrounds or unlit areas
 with -av 0 0 0, when super-sampling was effectively disabled, causing
 some loss in accuracy of the results.
+
+Updated Klems Half- and Quarter-bases to match angles currently used
+in WINDOW.
+
+Eliminated most aiming failures for triangular light sources, at the
+expense of conservative sampling near the centroid.  Thanks to
+David Geisler-Moroder for his help on this.
+
+Increased maximum set size to 8191 to avoid set overflow errors.
+
+Added source obstruction test to statistics being kept on which
+sources were visible in adaptive shadow testing code.  Previous
+behavior was likely over-estimating source contributions.
+
+Added diffuse components into maximum directional hemispherical
+reported by checkBSDF, so comparing to 100% is easier for each
+component.
+
+Fixed incorrect calculations in iso2klems script, thanks to
+help from Jacob Jonnson.
+
+Updated official copyright and license according to new wording
+provided by Jean Haemmerle at the LBNL Intellectual Property Office.
+Both were copied verbatim from e-mail I received from Taoning Wang
+on 8/20/2022.