--- ray/doc/notes/ReleaseNotes	2012/11/26 07:04:07	1.209
+++ ray/doc/notes/ReleaseNotes	2013/01/20 02:07:16	1.212
@@ -1858,3 +1858,11 @@ 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.