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chore: prepare 2.12.0 (#5070)
* chore: prepare 2.12.0 Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * docs: more info on numpy 2 Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * docs: mention NumPy 2 in README Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * docs: add release date Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * docs: add 4955 Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> * Update changelog.rst * docs: address review comments Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com> --------- Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
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@ -36,10 +36,10 @@ with everything stripped away that isn't relevant for binding
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generation. Without comments, the core header files only require ~4K
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lines of code and depend on Python (3.6+, or PyPy) and the C++
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standard library. This compact implementation was possible thanks to
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some of the new C++11 language features (specifically: tuples, lambda
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functions and variadic templates). Since its creation, this library has
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grown beyond Boost.Python in many ways, leading to dramatically simpler
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binding code in many common situations.
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some C++11 language features (specifically: tuples, lambda functions and
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variadic templates). Since its creation, this library has grown beyond
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Boost.Python in many ways, leading to dramatically simpler binding code in many
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common situations.
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Tutorial and reference documentation is provided at
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`pybind11.readthedocs.io <https://pybind11.readthedocs.io/en/latest>`_.
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@ -71,6 +71,7 @@ pybind11 can map the following core C++ features to Python:
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- Internal references with correct reference counting
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- C++ classes with virtual (and pure virtual) methods can be extended
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in Python
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- Integrated NumPy support (NumPy 2 requires pybind11 2.12+)
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Goodies
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-------
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@ -15,9 +15,159 @@ IN DEVELOPMENT
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Changes will be summarized here periodically.
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Version 2.12.0 (March 27, 2025)
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-------------------------------
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New Features:
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* ``pybind11`` now supports compiling for
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`NumPy 2 <https://numpy.org/devdocs/numpy_2_0_migration_guide.html>`_. Most
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code shouldn't change (see :ref:`upgrade-guide-2.12` for details). However,
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if you experience issues you can define ``PYBIND11_NUMPY_1_ONLY`` to disable
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the new support for now, but this will be removed in the future.
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`#5050 <https://github.com/pybind/pybind11/pull/5050>`_
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* ``pybind11/gil_safe_call_once.h`` was added (it needs to be included
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explicitly). The primary use case is GIL-safe initialization of C++
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``static`` variables.
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`#4877 <https://github.com/pybind/pybind11/pull/4877>`_
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* Support move-only iterators in ``py::make_iterator``,
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``py::make_key_iterator``, ``py::make_value_iterator``.
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`#4834 <https://github.com/pybind/pybind11/pull/4834>`_
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* Two simple ``py::set_error()`` functions were added and the documentation was
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updated accordingly. In particular, ``py::exception<>::operator()`` was
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deprecated (use one of the new functions instead). The documentation for
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``py::exception<>`` was further updated to not suggest code that may result
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in undefined behavior.
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`#4772 <https://github.com/pybind/pybind11/pull/4772>`_
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Bug fixes:
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* Removes potential for Undefined Behavior during process teardown.
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`#4897 <https://github.com/pybind/pybind11/pull/4897>`_
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* Improve compatibility with the nvcc compiler (especially CUDA 12.1/12.2).
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`#4893 <https://github.com/pybind/pybind11/pull/4893>`_
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* ``pybind11/numpy.h`` now imports NumPy's ``multiarray`` and ``_internal``
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submodules with paths depending on the installed version of NumPy (for
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compatibility with NumPy 2).
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`#4857 <https://github.com/pybind/pybind11/pull/4857>`_
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* Builtins collections names in docstrings are now consistently rendered in
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lowercase (list, set, dict, tuple), in accordance with PEP 585.
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`#4833 <https://github.com/pybind/pybind11/pull/4833>`_
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* Added ``py::typing::Iterator<T>``, ``py::typing::Iterable<T>``.
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`#4832 <https://github.com/pybind/pybind11/pull/4832>`_
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* Render ``py::function`` as ``Callable`` in docstring.
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`#4829 <https://github.com/pybind/pybind11/pull/4829>`_
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* Also bump ``PYBIND11_INTERNALS_VERSION`` for MSVC, which unlocks two new
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features without creating additional incompatibilities.
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`#4819 <https://github.com/pybind/pybind11/pull/4819>`_
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* Guard against crashes/corruptions caused by modules built with different MSVC
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versions.
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`#4779 <https://github.com/pybind/pybind11/pull/4779>`_
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* A long-standing bug in the handling of Python multiple inheritance was fixed.
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See PR #4762 for the rather complex details.
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`#4762 <https://github.com/pybind/pybind11/pull/4762>`_
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* Fix ``bind_map`` with ``using`` declarations.
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`#4952 <https://github.com/pybind/pybind11/pull/4952>`_
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* Qualify ``py::detail::concat`` usage to avoid ADL selecting one from
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somewhere else, such as modernjson's concat.
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`#4955 <https://github.com/pybind/pybind11/pull/4955>`_
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.. fix(types)
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* Render typed iterators for ``make_iterator``, ``make_key_iterator``,
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``make_value_iterator``.
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`#4876 <https://github.com/pybind/pybind11/pull/4876>`_
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* Add several missing type name specializations.
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`#5073 <https://github.com/pybind/pybind11/pull/5073>`_
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* Change docstring render for ``py::buffer``, ``py::sequence`` and
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``py::handle`` (to ``Buffer``, ``Sequence``, ``Any``).
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`#4831 <https://github.com/pybind/pybind11/pull/4831>`_
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* Fixed ``base_enum.__str__`` docstring.
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`#4827 <https://github.com/pybind/pybind11/pull/4827>`_
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* Enforce single line docstring signatures.
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`#4735 <https://github.com/pybind/pybind11/pull/4735>`_
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* Special 'typed' wrappers now available in typing.h to annotate tuple, dict,
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list, set, and function.
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`#4259 <https://github.com/pybind/pybind11/pull/4259>`_
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.. fix(build)
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* Fix FindPython mode exports & avoid ``pkg_resources`` if
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``importlib.metadata`` available.
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`#4941 <https://github.com/pybind/pybind11/pull/4941>`_
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* ``Python_ADDITIONAL_VERSIONS`` (classic search) now includes 3.12.
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`#4909 <https://github.com/pybind/pybind11/pull/4909>`_
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* ``pybind11.pc`` is now relocatable by default as long as install destinations
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are not absolute paths.
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`#4830 <https://github.com/pybind/pybind11/pull/4830>`_
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* Correctly detect CMake FindPython removal when used as a subdirectory.
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`#4806 <https://github.com/pybind/pybind11/pull/4806>`_
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* Don't require the libs component on CMake 3.18+ when using
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PYBIND11_FINDPYTHON (fixes manylinux builds).
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`#4805 <https://github.com/pybind/pybind11/pull/4805>`_
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* ``pybind11_strip`` is no longer automatically applied when
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``CMAKE_BUILD_TYPE`` is unset.
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`#4780 <https://github.com/pybind/pybind11/pull/4780>`_
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* Support DEBUG_POSFIX correctly for debug builds.
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`#4761 <https://github.com/pybind/pybind11/pull/4761>`_
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* Hardcode lto/thin lto for Emscripten cross-compiles.
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`#4642 <https://github.com/pybind/pybind11/pull/4642>`_
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Documentation:
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* Small fix to grammar in functions.rst.
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`#4791 <https://github.com/pybind/pybind11/pull/4791>`_
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* Remove upper bound in example pyproject.toml for setuptools.
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`#4774 <https://github.com/pybind/pybind11/pull/4774>`_
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CI:
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* CI: Update NVHPC to 23.5 and Ubuntu 20.04.
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`#4764 <https://github.com/pybind/pybind11/pull/4764>`_
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* Test on PyPy 3.10.
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`#4714 <https://github.com/pybind/pybind11/pull/4714>`_
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Other:
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* Use new PyCode API on Python 3.12+.
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`#4916 <https://github.com/pybind/pybind11/pull/4916>`_
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* Use Ruff formatter instead of Black.
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`#4912 <https://github.com/pybind/pybind11/pull/4912>`_
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* An ``assert()`` was added to help Coverty avoid generating a false positive.
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`#4817 <https://github.com/pybind/pybind11/pull/4817>`_
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Version 2.11.1 (July 17, 2023)
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-----------------------------
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------------------------------
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Changes:
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@ -32,7 +182,7 @@ Changes:
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Version 2.11.0 (July 14, 2023)
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-----------------------------
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------------------------------
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New features:
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@ -42,7 +42,7 @@ If you don't have nox, you should either use ``pipx run nox`` instead, or use
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- Add release date in ``docs/changelog.rst`` and integrate the output of
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``nox -s make_changelog``.
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- Note that the ``make_changelog`` command inspects
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- Note that the ``nox -s make_changelog`` command inspects
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`needs changelog <https://github.com/pybind/pybind11/pulls?q=is%3Apr+is%3Aclosed+label%3A%22needs+changelog%22>`_.
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- Manually clear the ``needs changelog`` labels using the GitHub web
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@ -8,6 +8,34 @@ to a new version. But it goes into more detail. This includes things like
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deprecated APIs and their replacements, build system changes, general code
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modernization and other useful information.
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.. _upgrade-guide-2.12:
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v2.12
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=====
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NumPy support has been upgraded to support the 2.x series too. The two relevant
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changes are that:
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* ``dtype.flags()`` is now a ``uint64`` and ``dtype.alignment()`` an
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``ssize_t`` (and NumPy may return an larger than integer value for
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``itemsize()`` in NumPy 2.x).
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* The long deprecated NumPy function ``PyArray_GetArrayParamsFromObject``
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function is not available anymore.
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Due to NumPy changes, you may experience difficulties updating to NumPy 2.
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Please see the [NumPy 2 migration guide](https://numpy.org/devdocs/numpy_2_0_migration_guide.html) for details.
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For example, a more direct change could be that the default integer ``"int_"``
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(and ``"uint"``) is now ``ssize_t`` and not ``long`` (affects 64bit windows).
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If you want to only support NumPy 1.x for now and are having problems due to
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the two internal changes listed above, you can define
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``PYBIND11_NUMPY_1_ONLY`` to disable the new support for now. Make sure you
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define this on all pybind11 compile units, since it could be a source of ODR
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violations if used inconsistently. This option will be removed in the future,
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so adapting your code is highly recommended.
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.. _upgrade-guide-2.11:
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v2.11
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@ -11,11 +11,11 @@
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#define PYBIND11_VERSION_MAJOR 2
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#define PYBIND11_VERSION_MINOR 12
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#define PYBIND11_VERSION_PATCH 0.dev1
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#define PYBIND11_VERSION_PATCH 0
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// Similar to Python's convention: https://docs.python.org/3/c-api/apiabiversion.html
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// Additional convention: 0xD = dev
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#define PYBIND11_VERSION_HEX 0x020C00D1
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#define PYBIND11_VERSION_HEX 0x020C0000
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// Define some generic pybind11 helper macros for warning management.
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//
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@ -8,5 +8,5 @@ def _to_int(s: str) -> Union[int, str]:
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return s
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__version__ = "2.12.0.dev1"
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__version__ = "2.12.0"
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version_info = tuple(_to_int(s) for s in __version__.split("."))
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@ -67,10 +67,12 @@ for issue in issues:
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for cat, msgs in cats.items():
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if msgs:
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desc = cats_descr[cat]
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print(f"[bold]{desc}:\n" if desc else "")
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print(f"[bold]{desc}:" if desc else f".. {cat}")
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print()
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for msg in msgs:
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print(Syntax(msg, "rst", theme="ansi_light", word_wrap=True))
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print()
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print()
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if missing:
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print()
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