Bump was only applicable to V2500-A1... ...as an option. (The A1 being pretty asthmatic with anything other than sea-level ISA conditions.)
However, the latest V2500-A5 software standard refers to it again, not sure what step change would be achieved. Remember that the -A5 engine is the same physical device producing 22,000lbs on an A319 or 33,000lbs on an A321, only a small 'plug' in the FADEC is changed to tell the FADEC what it is.