--- ray/doc/notes/ReleaseNotes	2012/11/26 07:04:07	1.209
+++ ray/doc/notes/ReleaseNotes	2013/04/21 23:01:14	1.218
@@ -1858,3 +1858,25 @@ to Lars Grobe for help identifying this problem.
 Fixed bug in depth-of-field blur where view distance was measured from
 fore clipping plane rather than viewpoint.  Thanks to Peter A-B for
 pointing this out.
+
+Added options to dctimestep to allow multiple time steps (-n)
+and multiple output pictures or sensor files (-o).  Also added -i
+option to specify float (-if) or double (-id) input for sky matrix.
+
+Created gendaymtx program to compute annual sky patch matrix based
+on Ian Ashdown's implementation of Perez all-weather sky model.
+Output can be sent directly to dctimestep in ASCII or binary stream.
+
+Replaced existing gendaylit.c with improved version from Wendelin Sprenger
+and Jan Wienold of ISE.
+
+Improved accuracy of ambient calculation for large -ad settings.  Thanks
+to Lars Grobe for noticing the problem.
+
+Added -r option to gendaymtx to rotate the sky the specified number of
+degrees about the zenith as suggested by A. McNeil.
+
+Axel Jacobs added -pal eco color map that does a blue-red-yellow scale.
+
+Created bsdf2klems tool to convert from various BSDF representations to
+Klems basis matrix in XML file.