old_contents: #!/usr/bin/env python
  import os
  import setuptools
  
  
  install_requires = [
      'abjad[accelerated,development]==2.20',
      ]
  
  
  version_file_path = os.path.join(
      os.path.dirname(__file__),
      'consort',
      '_version.py'
      )
  with open(version_file_path, 'r') as file_pointer:
      file_contents_string = file_pointer.read()
  local_dict = {}
  exec(file_contents_string, None, local_dict)
  __version__ = local_dict['__version__']
  
  
  def main():
      setuptools.setup(
          author='Josiah Wolf Oberholtzer',
          author_email='josiah.oberholtzer@gmail.com',
          description='High-level tools for formalized score control in Abjad.',
          include_package_data=True,
          install_requires=install_requires,
          name='consort',
          packages=('consort',),
          url='https://github.com/josiah-wolf-oberholtzer/consort',
          version=__version__,
          zip_safe=False,
          )
  
  
  if __name__ == '__main__':
      main()
  
new_contents: #!/usr/bin/env python
  import os
  import setuptools
  
  
  install_requires = [
      'abjad[accelerated,development]==2.21',
      ]
  
  
  version_file_path = os.path.join(
      os.path.dirname(__file__),
      'consort',
      '_version.py'
      )
  with open(version_file_path, 'r') as file_pointer:
      file_contents_string = file_pointer.read()
  local_dict = {}
  exec(file_contents_string, None, local_dict)
  __version__ = local_dict['__version__']
  
  
  def main():
      setuptools.setup(
          author='Josiah Wolf Oberholtzer',
          author_email='josiah.oberholtzer@gmail.com',
          description='High-level tools for formalized score control in Abjad.',
          include_package_data=True,
          install_requires=install_requires,
          name='consort',
          packages=('consort',),
          url='https://github.com/josiah-wolf-oberholtzer/consort',
          version=__version__,
          zip_safe=False,
          )
  
  
  if __name__ == '__main__':
      main()
  
subject: Bump Abjad version in setup.py.