For this you need version information inside the dats and you need to know how this version correspond to the used mame version. At least hiscore.dat and history.dat doesn't have such information at all and/or their numbering system doesn't match anything similar to mame.
There is no real connection to MAME's setdatabase anyway, the future of some dats is highly unknown either. Any RSS reader will do what you want ... keeping you informed update new dats.


Roman Scherzer