old_contents: # encoding: utf-8
  
  __all__ = ["Builder"]
  
  __version__ = "0.25"
  
  from .builder import Builder
  
new_contents: # encoding: utf-8
  
  __all__ = ["Builder"]
  
  __version__ = "0.25.1"
  
  from .builder import Builder
  
subject: Prepare new version. closes #270 closes alejandroautalan/pygubu-designer#151