Sourced from virtualenv's changelog.
v20.13.4 (2022-03-18)
Bugfixes - 20.13.4
- Improve performance of python startup inside created virtualenvs - by :user:`asottile`. (`[#2317](https://github.com/pypa/virtualenv/issues/2317) <https://github.com/pypa/virtualenv/issues/2317>`_) - Upgrade embedded setuptools to ``60.10.0`` from ``60.9.3`` - by :user:`gaborbernat`. (`[#2320](https://github.com/pypa/virtualenv/issues/2320) <https://github.com/pypa/virtualenv/issues/2320>`_)