Raspbian Jessie? Is it possible that you have updated the dnsmasq binary yourself in the past (perhaps without realising it?) Or do you have an alternative source in your apt packages sources? Jessie does not have version 2.76 of dnsmasq by default, nor in the default source list, so something must be "other" with your setup.
The plan to combine dnsmasq into FTL was mooted a while back, and work has been going on behind the scenes for a few months now. The issues faced with Jessie and 3.3 highlighted the need for this, and we decided to launch it as a beta to ensure it's tested by a much wider pool of people than our normal test processes. Hopefully this will ensure that when we actually release Pi-Hole/FTL v4.0 we will not run into the same issues as we did with 3.3
Never say never, but... I wouldn't hold your breath waiting 