pbr>=1.6  # Apache-2.0
docutils>=0.11,!=0.13.1  # OSI-Approved Open Source, Public Domain
sphinx>=2.0.0,!=2.1.0 # BSD
yasfb>=0.5.1
openstackdocstheme>=2.2.1 # Apache-2.0
sphinxcontrib-svg2pdfconverter>=0.1.0 # BSD