how I update my old compiler in linux

Hi, 

    Our intel compiler version is  "Compiler XE for applications running on Intel(R) 64, Version 14.0.2.144 Build 20140120."

    And the MPSS is 2.1 which is used by the Xeon Phi coprocessor.

    We bought the Intel Parallel Studio XE Cluster Edition for Linux in 2014.11, how to uninstall the old one and update another latest one?  Is that free?

Thanks