--- ray/doc/notes/ReleaseNotes	2003/11/19 16:21:28	1.23
+++ ray/doc/notes/ReleaseNotes	2003/12/31 01:50:02	1.25
@@ -1220,3 +1220,14 @@ Added in(i) function to rcalc for more flexible channe
 Replaced all calls to vfork() with regular fork() calls.
 
 Fixed bug in glarendx for dgr calculation with sources behind view.
+
+Added -p option to histo to print percentages/percentiles r.t. counts.
+
+Added a source occluder cache to accelerate shadow testing.  This
+can save up to 50% of the calculation time in scenes with many
+light sources, especially ones containing large occluders.  This
+optimization may be tuned or switched off with the -DSHADCACHE=N
+compile switch, where N is the resolution of the shadow cache, or
+0 to disable it.  Since this is purely a time vs. memory trade-off,
+I decided not to make it a new command-line option.  (We already
+have plenty.)