Version Changelog - incompatiblity ?

[Pixelshaker]

Hey,

is there a version changelog for mentalray ? i have a shader which initially was compiled for version 3.6.5 and works until 3.7.1. on maya 2010, 3.7.5 it won´t work anymore. Are there changes in variables and so on and if so, is there a changelog ?

or maybe recompiling would help ?

many thanks,
andy