development.rst

Development changes

Windows wheel runtime bundling

Wheels built for Windows now bundle the MSVC runtime DLL msvcp140.dll. This enables importing Matplotlib on systems that do not have the runtime installed.

Increase to minimum supported versions of dependencies

For Matplotlib 3.7, the minimum supported versions <dependencies> are being bumped:

Dependency	min in mpl3.6	min in mpl3.7
NumPy	1.19	1.20
pyparsing	2.2.1	2.3.1
Qt		5.10

• There are no wheels or conda packages that support both Qt 5.9 (or older) and Python 3.8 (or newer).

This is consistent with our min_deps_policy and NEP29

New dependencies

• importlib-resources (>= 3.2.0; only required on Python < 3.10)