These enhancements and updates have been tested and released by the Quality Control Department and will function inside Mastercam X2. Follow the instructions given in the 'info' button of each download for install instructions.
Maintenance releases require that you have a current maintenance subscription through the date of the maintenance release. If your maintenance contract has expired prior to the date of the release, then you will not be able to run that Maintenance release. You can check your maintenance contract date by running HaspX.exe (or NhaspX.exe for network users) which is located in the root directory of Mastercam.