it seems as the nano configuration has grown organically over the years. We need a way to support both V10 and V11 in 12.5, without having to have V11 be a modification of V10 but really a configuration of its own.
https://github.com/cms-sw/cmssw/tree/master/PhysicsTools/NanoAOD/python/V10 has already been created, including a high level file that needs to "undo" all new changes that go in V11/trunk.
best might be to copy all of the cfi/cff in V10 and change import paths so as to cleanly decouple V10 and trunk
it seems as the nano configuration has grown organically over the years. We need a way to support both V10 and V11 in 12.5, without having to have V11 be a modification of V10 but really a configuration of its own. https://github.com/cms-sw/cmssw/tree/master/PhysicsTools/NanoAOD/python/V10 has already been created, including a high level file that needs to "undo" all new changes that go in V11/trunk.
best might be to copy all of the cfi/cff in V10 and change import paths so as to cleanly decouple V10 and trunk