- Add patch from upstream to fix one failing test:
* tests.patch

- Add missing dependencies
- Skip online test test_seed_link_via_app_data

- update to 20.0.25:
* Fix that when the ``app-data`` seeders image creation fails the exception is silently ignored. Avoid two virtual environment creations to step on each oth
ers toes by using a lock while creating the base images. By :user:`gaborbernat`. (`#1869 `_)
* Ensure that the seeded packages do not get too much out of date:
+ More details under :ref:`wheels` - by :user:`gaborbernat`. (`#1821 `_)
* Upgrade embed wheel content:
+ - ship wheels for Python ``3.9`` and ``3.10``
+ - upgrade setuptools for Python ``3.5+`` from ``47.1.1`` to ``47.3.1``
* Fix typo in ``setup.cfg`` - by :user:`RowdyHowell`. (`#1857 `_)
* Relax ``importlib.resources`` requirement to also allow version 2 - by :user:`asottile`. (`#1846 `_)
* Upgrade embedded setuptools to ``44.1.1`` for python 2 and ``47.1.1`` for python3.5+ - by :user:`gaborbernat`. (`#1855 `_)

- update to 20.0.21:
- Fix virtualenv fails sometimes when run concurrently, ``--clear-app-data`` conflicts with :option:`clear` flag when
abbreviation is turned on. To bypass this while allowing abbreviated flags on the command line we had to move it to
:option:`reset-app-data` - by :user:`gaborbernat`. (`#1824 `_)
- Fix download fails with python 3.4 - by :user:`gaborbernat`. (`#1809 `_)
- Fixes older CPython2 versions use ``_get_makefile_filename`` instead of ``get_makefile_filename`` on ``sysconfig`` - by :user:`ianw`. (`#1810 `_)
- Fix download is ``True`` by default - by :user:`gaborbernat`. (`#1813 `_)
- Fail ``app-data`` seed operation when wheel download fails and better error message - by :user:`gaborbernat`. (`#1814 `_)
- Fix generating a Python 2 environment from Python 3 creates invalid python activator - by :user:`gaborbernat`. (`#1776 `_)
- Fix pinning seed packages via ``app-data`` seeder raised ``Invalid Requirement`` - by :user:`gaborbernat`. (`#1779 `_)
- Do not stop interpreter discovery if we fail to find the system interpreter for a executable during discovery
- by :user:`gaborbernat`. (`#1781 `_)