I believe it's called a POL fitting and these will work with the new OPD valves.
As stated above, to work with legacy appliances, the OPD valve has internal threads to accept the POL fittings.
For a wrench-free connection, I picked up some handwheels at my local propane supplier and installed them behind my POL's.
Not necessary, but more convenient when changing out tanks.
The handwheel looks like this...
And to really sex it up, place a short piece of copper tubing of the correct diameter/length, BEHIND the handwheel.
This keeps the handwheel in place, against the POL fitting.
Note:
Only do the handwheel mod if you have the later POL fitting with O-ring seal.
Otherwise use the wrench.