--- ray/doc/notes/ReleaseNotes	2015/10/14 20:51:44	1.271
+++ ray/doc/notes/ReleaseNotes	2016/01/29 16:21:55	1.273
@@ -2062,3 +2062,11 @@ Version 5.1
 
 Fixed issue with vchars.mta and symbols.mta not being installed in
 the appropriate metafile library location, with help from Rob G.
+
+Added ability to give quoted strings to output= directive in rfluxmtx.
+
+****** COMPATIBILITY CHANGE ********
+Added ability to digest color (CIE-XYZ) input in pabopto2bsdf.
+This change alters the .sir (interpolant) format, so these files
+will need to be regenerated.  Use the new "#colorimetry: CIE-XYZ" tag
+to enable on input.