cp /usr/bin/atop /usr/bin/atop-1.24
ln -s atop-1.24 /usr/bin/atopsar-1.24
Notice that atop versions < 1.25 do not allow unknown keywords
in the rc-file (so do not use keywords that are not supported by
such version). From version 1.25 onwards, only a warning is given
for an unknown keyword.