--- ray/doc/notes/ReleaseNotes	2007/07/25 04:12:35	1.137
+++ ray/doc/notes/ReleaseNotes	2008/12/06 01:08:52	1.153
@@ -1621,7 +1621,7 @@ Additional error-checking for source surfaces.
 Re-fixed bug in octree code that caused it to allocate 8 times as
 much memory as it actually used(!) -- this was pointed out way back
 in 1999 by Erik Reinhard and Erik Jansen, but the fix they gave me
-got lost in the slightly borken release process at the time.  This
+got lost in the slightly broken release process at the time.  This
 should make a big difference in memory usage, especially for the
 new mesh primitive.  (I measured 30% less memory usage.)
 
@@ -1633,3 +1633,52 @@ of the smaller octree structure size.
 Fixed bug in shadow cache where it was adding surfaces with antimatter
 holes cut in them to the obstructor list.  Thanks to John Mardaljevic
 for discovering and reporting the problem.
+
+Adding ability in mkillum to incorporate BSDF data in calculation.
+Internal interface (raypcalls) now used in place of rtrace process(es).
+
+Fixed pixel alignment in pcomb for size reduction and enlargement.
+
+Allow rtcontrib user to set -P and -PP options for persistent rendering.
+The only caveat is that -n setting > 1 requires -PP rather than -P.
+
+Added -c option to rtcontrib to facilitate cumulative calculations.
+
+****** COMPATIBILITY CHANGE ********
+Fixed long-standing bug in source.cal, which caused it to produce
+reversed anisotropic photometric distributions due to the
+misorientation of the y-axis.  Thanks to Zack Rogers for discovering
+and helping debug this problem.
+
+Fixed long-standing bug in replmarks, where triangles with X-side
+aligned with Z-axis would cause incorrect rotations.  Thanks to
+Zack Rogers for finding this error.
+
+Added rsensor program to compute sensor signal for daylighting controls.
+Funding for this component was provided by the Architectural Energy
+Corporation in Boulder, CO, and directed by Zack Rogers.
+
+Added "planisphere" (stereographic) fisheye view type for traditional
+daylighting analysis.  Feature requested & explained by Axel Jacobs.
+
+Modified -c option to rtcontrib so it can take a number of input
+rays to average over, rather than only produce a single accumulated
+record (which can now be done with -c 0).
+
+=====================
+Version 4.0
+
+Added -n option to rvu to provide parallel rendering.
+
+****** COMPATIBILITY CHANGE ********
+Changed ".pic" extension to ".hdr" in all sources and documentation
+to improve interoperability with other software, since this has become
+the de facto extension for Radiance RGBE and XYZE pictures.  Since file
+extensions were never more than a convention in Radiance, this does not
+affect operation, but may require the update of scripts, etc. written
+by others that assume the ".pic" suffix for Radiance output.
+
+Added -N option to objview to support multiprocessing.
+
+Improved sampling of circular sources (source, sphere, ring types) with
+quite a bit of help from David Geisler-Moroder.