old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  """Version info"""
  
  short_version = '1.0rc0'
  version = '1.0.0rc0'
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  """Version info"""
  
  short_version = '1.0rc1'
  version = '1.0.0rc1'
  
subject: Bump to v1.0.0rc1