A transitional mode of operation in the version-to-version migration process that applies to a DB2 subsystem or data sharing group that was in new-function mode (NFM) at one time. When operating in enabling-new-function mode*, a DB2 subsystem or data sharing group is preparing to use the new functions of the new version but cannot yet use them. A data sharing group that operates in enabling-new-function mode* cannot coexist with members that operate at the prior version level. Fallback to a prior version is not supported. See also enabling-new-function mode, compatibility mode, compatibility mode*.