Bump for release

NEWS.rst

@@ -9,6 +9,16 @@
 
 .. towncrier release notes start
 
+21.1.3 (2021-06-26)
+===================
+
+Bug Fixes
+---------
+
+- Remove unused optional ``tornado`` import in vendored ``tenacity`` to prevent old versions of Tornado from breaking pip. (`#10020 <https://github.com/pypa/pip/issues/10020>`_)
+- Require ``setup.cfg``-only projects to be built via PEP 517, by requiring an explicit dependency on setuptools declared in pyproject.toml. (`#10031 <https://github.com/pypa/pip/issues/10031>`_)
+
+
 21.1.2 (2021-05-23)
 ===================
 

news/10020.bugfix.rst

-Remove unused optional ``tornado`` import in vendored ``tenacity`` to prevent old versions of Tornado from breaking pip.

news/10031.bugfix.rst

-Require ``setup.cfg``-only projects to be built via PEP 517, by requiring an explicit dependency on setuptools declared in pyproject.toml.

src/pip/__init__.py

 from typing import List, Optional
 
-__version__ = "21.1.2"
+__version__ = "21.1.3"
 
 
 def main(args=None):