code: def next_minor(self):
      
      clone = self.clone()
      clone.minor += 1
      clone.patch = 0
      return clone
docs: Return a Version whose minor number is one greater than self's.
  
      .. note::
          The new Version will always have a zeroed-out bugfix/tertiary version
          number, because the "next minor release" of e.g. 1.2.1 is 1.3.0, not
          1.3.1.