Which version should I compare with for PR

Dear all,

First post here, also I have read your forum quite a few time already, thanks for the amazing job!
I recently have come across an issue: I would like node parameters to be read from a dict (in fact, a json specifying a set of parameters for a full analysis), and after fighting a bit myself, I found the “from_json” and “load_inputs_from_json” in BaseInterface. So I decided to modify the init function, and add load_inputs_from_dict. My question is: what branch of upstream should I try to compare for my PR? In most of the projects I have been working on, we pushed directly on master; but I see a branch dev/2.0, is this the way to go? Many thanks