The current versions of CLIC are supposed to be backwards compatible if the whole calibration of an old data set is performed with a new CLIC version. However, not enough tests have been made yet to discard the presence of bugs. For the time being, we recommend to work with the version of January 2007 to ensure a proper calibration and table creation of data previous to 2007. CLIC07 is for the time being distributed with all the GILDAS releases, and allows using the CLIC version of January 2007.