v2.6.1
docs: add std::valarray to docs/advanced/cast/stl.rst (#2547)
style: ssize_t -> py::ssize_t
fix: use OVERRIDE instead of OVERLOAD (#2490)
refactor: module -> module_ with typedef (#2544)
feat: py::prepend tag (#1131)
chore: drop support for PyPy < 7.3.1 and clean up old PyPy workarounds (#2456)
Replace PYBIND11_PLUGIN with PYBIND11_MODULE