What's Changed

• feat: numpy scalars by @henryiii in https://github.com/pybind/pybind11/pull/5726
• fix: TSan warning in sub-interpreter test by @b-pass in https://github.com/pybind/pybind11/pull/5729
• fix: add support for shared_ptr<const T> in py::init() with smart_holder by @rwgk in https://github.com/pybind/pybind11/pull/5731
• fix: add support for const-only smart pointers by @Rosdf in https://github.com/pybind/pybind11/pull/5718
• fix: android CMake support by @henryiii in https://github.com/pybind/pybind11/pull/5733
• fix: eliminate cross-DSO RTTI reliance in smart_holder functionality (for platforms like macOS). by @rwgk in https://github.com/pybind/pybind11/pull/5728
• fix: handle implementations without subinterpreter support by @msimacek in https://github.com/pybind/pybind11/pull/5732
• ci: avoid 3.13.4 on Windows by @henryiii in https://github.com/pybind/pybind11/pull/5725
• ci: check latest on 3.13 by @henryiii in https://github.com/pybind/pybind11/pull/5734
• ci: cibw update to 3.0.0rc2 by @henryiii in https://github.com/pybind/pybind11/pull/5717
• docs: Add documentation entry for warnings by @jiwaszki in https://github.com/pybind/pybind11/pull/5356
• tests: better test for const only smart ptr by @Rosdf in https://github.com/pybind/pybind11/pull/5727
• tests: run pytest under Python devmode by @XuehaiPan in https://github.com/pybind/pybind11/pull/5715
• chore(deps): bump pypa/cibuildwheel from 3.0.0rc2 to 3.0 in the actions group by @dependabot in https://github.com/pybind/pybind11/pull/5721
• chore(deps): bump requests from 2.32.3 to 2.32.4 in /docs by @dependabot in https://github.com/pybind/pybind11/pull/5720
• chore(deps): bump urllib3 from 2.2.2 to 2.5.0 in /docs by @dependabot in https://github.com/pybind/pybind11/pull/5735
• chore: prepare for 3.0.0rc4 by @henryiii in https://github.com/pybind/pybind11/pull/5736

[!IMPORTANT]
This RC has an ABI bump. This is expected to be the last bump (and last RC) unless something comes up.

New Contributors

• @Rosdf made their first contribution in https://github.com/pybind/pybind11/pull/5718

Full Changelog: https://github.com/pybind/pybind11/compare/v3.0.0rc3...v3.0.0rc4