--- ray/doc/notes/ReleaseNotes 2014/05/31 21:33:21 1.236 +++ ray/doc/notes/ReleaseNotes 2014/06/19 16:26:55 1.237 @@ -1940,3 +1940,9 @@ rcollate, gendaymtx, and dctimestep. Created rmtxop utility to operate on multi-component matrices. This facilitates some daylight matrix calculations, and provides a general tool for manipulating matrix data. + +****** COMPATIBILITY CHANGE ******** +Introduced new Hessian-based error control in irradiance caching (ambient) +calculation. Since the format of the stored ambient values is different, +the old files will be rejected with an error message and must be removed. +The programs may be compiled with the -DOLDAMB option if this is a problem.