old_contents: # -*- coding: utf-8 -*-
  
  __version__ = (2, 0, 0, 'candidate', 2)
  
  POOLTYPE_PERSISTENT = 1
  POOLTYPE_QUEUE = 2
  
  __all__  = ['POOLTYPE_PERSISTENT', 'POOLTYPE_QUEUE']
  
new_contents: # -*- coding: utf-8 -*-
  
  __version__ = (2, 0, 0, 'candidate', 3)
  
  POOLTYPE_PERSISTENT = 1
  POOLTYPE_QUEUE = 2
  
  __all__  = ['POOLTYPE_PERSISTENT', 'POOLTYPE_QUEUE']
  
subject: Set 2.0rc3 version.