--- ray/doc/notes/ReleaseNotes	2006/06/06 19:13:00	1.125
+++ ray/doc/notes/ReleaseNotes	2008/04/30 21:11:35	1.148
@@ -1591,3 +1591,76 @@ choose an inappropriate visual and display incorrect c
 to Oskar Itzinger for debugging the problem.)
 
 Fixed long-standing inaccuracy of pcompos -t and +t thresholding options.
+
+Fixed bug in handling of views with tabs rather than spaces.
+
+Fixed bug related to alias of alias.
+
+****** COMPATIBILITY CHANGE ********
+Changed default sky turbidity in gensky from the original default of
+2.75 to the CIE 110-1994 standard value of 2.45.  Thanks to Marilyne
+Anderson of MIT for pointing out this discrepancy.
+
+Added -o option to ra_xyze to produce original pixel values.
+
+Fixed bug in tracing of virtual sources, where intervening glazing was
+not being accounted for properly.
+
+Added -h option to pcompos and pcomb to eliminate verbose headers.
+
+=====================
+Version 3.9
+
+Added -spec option to falsecolor to restore original spectral color scale.
+Also added "-s auto" option to automatically set the maximum value.
+
+Added byte-swapping input and output to rcalc.
+
+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 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.)
+
+Corrected ray weights for material mixtures.
+
+Reduced the default -n setting for obj2mesh to take better advantage
+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).