--- ray/doc/notes/ReleaseNotes	2021/02/19 22:05:46	1.387
+++ ray/doc/notes/ReleaseNotes	2021/03/27 17:50:18	1.389
@@ -2423,3 +2423,9 @@ Removed upper limit on number of modifiers in rcontrib
 
 Put cap on maximum ambient gradient to avoid over-extrapolation of
 poorly computed irradiance cache values.
+
+Added robjutil +T option to triangulate all faces in .OBJ description.
+
+Altered BSDF library to have both front and back diffuse transmittance
+values, which can be different.  This was necessary to avoid issues
+caused by measurement and modeling discrepancies.