Trying to clean up the interface which will in the long run help the documentation, but in the mean time will make some warnings... if you see
Warning: -spacegroup option deprecated: please use space_group='P422' instead
Warning: -resolution option deprecated: please use d_min=1.5 instead
Don't panic - this is to be expected - but you may want to change the way you run xia2 or your scripts. More of a warning for beamline / automation people! The outcome of this should however be automated generation of command-line documentation and the ability to keep "recipes" for running xia2 in tidy files....