old_contents: from fields import ManyToManyHistoryField
  
  __all__ = ['ManyToManyHistoryField']
  
  VERSION = (0, 0, 3)
  __version__ = '.'.join(map(str, VERSION))
new_contents: from fields import ManyToManyHistoryField
  
  __all__ = ['ManyToManyHistoryField']
  
  VERSION = (0, 0, 4)
  __version__ = '.'.join(map(str, VERSION))
subject: bump version