old_contents: """Qopen: Seperation of intrinsic and scattering Q by envelope inversion"""
  
  from qopen.core import run
  
  __version__ = '4.2'
  
new_contents: """Qopen: Seperation of intrinsic and scattering Q by envelope inversion"""
  
  from qopen.core import run
  
  __version__ = '4.3-dev'
  
subject: raise version number