--- ray/doc/notes/ReleaseNotes	2005/04/19 18:44:22	1.72
+++ ray/doc/notes/ReleaseNotes	2005/08/05 17:24:53	1.92
@@ -1382,7 +1382,7 @@ care to support officially due to its machine-dependen
 Fixed bug that caused incorrect reporting of non-surface in set when
 mixing meshes and instances.  (Thanks to Jack de Valpine for discovery.)
 
-Fixed innacuracy in calculation of diffuse transmission in the presence
+Fixed inaccuracy in calculation of diffuse transmission in the presence
 of pure specular (Fresnel reflection) using "trans" material.  Thanks
 to Christoph Reinhart for pointing out the error.
 
@@ -1441,3 +1441,60 @@ calculation.  It should now be possible to compute man
 which used to be prohibitively expensive.
 
 Added -T option to xshowtrace to trace rays to light sources.
+
+Added meta2bmp program to produce BMP files from metafile graphics.
+
+Added cct_x(t) and cct_y(t) to src/cal/cal/blackbody.cal to interpolate
+CIE chromaticities for particular black-body temperatures.
+
+Increased maximum number of input pictures in pcomb and pcompos to 512.
+
+Created rtcontrib program for computing ray contribution coefficients.
+This tool may be used to do standard optical ray tracing or daylight
+coefficient calculations for annual simulations, among other uses.
+
+Added tilde ('~') output option as part of the -o* specification of
+rtrace.  This permits ray trees to be parsed more easily in binary
+output mode, as needed by rtcontrib.
+
+Implemented Russian roulette ray termination with -lr <= 0.
+Made -lr -10 the default in rtcontrib.
+
+Made rtcontrib -f option search RAYPATH directories.
+
+Made it so -o option of rtcontrib can pipe -o output to a command.
+
+Added -if and -of options to total for binary i/o (following rcalc mold).
+
+Switched default options in rtrace to use Russian roulette.  (Rpict and rvu
+still use biased ray termination.)
+
+Added rtcontrib -r option to recover partial output.
+
+Added -u rendering option for pure Monte Carlo sampling.
+(Got rid of -DMC compile option, which this makes superfluous.)
+
+Changed -t option of rlam to accept strings as well as single characters.
+
+Fixed bug in rcalc with -l option where it would sometimes go into an
+infinite loop.
+
+Fixed truly ancient bug in bounding box computation for cones, which
+could (and did) cause missing segments.
+
+Added -z option to normtiff to output LZW-compressed files.
+
+Last change to total causes it to produce results when it sees an empty
+line on the input.  This was not intentional, but I decided I like this
+behavior so I documented it rather than changing it.
+
+=====================
+Version 3.8
+
+Fixed Russian roulette ray termination, which was doing the opposite of
+what it should have been doing, resulting in overestimated values below
+minimum ray sampling weight (serious).
+
+Changed mksource to use 98th percentile (rather than 99th) for threshold.
+
+(Above changes included in 3.7.1 patch release.)