old release notes
=================

.. toctree::
  :maxdepth: 3

  release_notes--old--v1.21
  release_notes--old--v1.20
  release_notes--old--v1.19
  release_notes--old--v1.18
  release_notes--old--v1.17
  release_notes--old--v1.16
  release_notes--old--v1.15