Upgrading TMs in packages to use upLift

I've just upgraded to Studio 2017 and have now received a package from an agency ready for translation. In this, the TM shows with the note "For optimum performance and for enjoying upLift benefits, we recommend that you upgrade this translation memory. Select the TM and click 'Upgrade'."

If I follow this instruction to enable me to use upLift will it mess up the TM for the agency in the return package (they still use an earlier version of Studio) or will they not notice any difference?