--- ray/doc/notes/ReleaseNotes	2013/01/11 05:07:47	1.210
+++ ray/doc/notes/ReleaseNotes	2013/01/20 02:07:16	1.212
@@ -1860,4 +1860,9 @@ fore clipping plane rather than viewpoint.  Thanks to 
 pointing this out.
 
 Added options to dctimestep to allow multiple time steps (-n)
-and multiple output pictures or sensor files (-o).
+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.