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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Henry Schreiner 2024-03-27 18:09:06 -04:00 committed by GitHub
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7 changed files with 199 additions and 18 deletions

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@ -36,10 +36,10 @@ with everything stripped away that isn't relevant for binding
generation. Without comments, the core header files only require ~4K
lines of code and depend on Python (3.6+, or PyPy) and the C++
standard library. This compact implementation was possible thanks to
some of the new C++11 language features (specifically: tuples, lambda
functions and variadic templates). Since its creation, this library has
grown beyond Boost.Python in many ways, leading to dramatically simpler
binding code in many common situations.
some C++11 language features (specifically: tuples, lambda functions and
variadic templates). Since its creation, this library has grown beyond
Boost.Python in many ways, leading to dramatically simpler binding code in many
common situations.
Tutorial and reference documentation is provided at
`pybind11.readthedocs.io <https://pybind11.readthedocs.io/en/latest>`_.
@ -71,6 +71,7 @@ pybind11 can map the following core C++ features to Python:
- Internal references with correct reference counting
- C++ classes with virtual (and pure virtual) methods can be extended
in Python
- Integrated NumPy support (NumPy 2 requires pybind11 2.12+)
Goodies
-------

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@ -15,9 +15,159 @@ IN DEVELOPMENT
Changes will be summarized here periodically.
Version 2.12.0 (March 27, 2025)
-------------------------------
New Features:
* ``pybind11`` now supports compiling for
`NumPy 2 <https://numpy.org/devdocs/numpy_2_0_migration_guide.html>`_. Most
code shouldn't change (see :ref:`upgrade-guide-2.12` for details). However,
if you experience issues you can define ``PYBIND11_NUMPY_1_ONLY`` to disable
the new support for now, but this will be removed in the future.
`#5050 <https://github.com/pybind/pybind11/pull/5050>`_
* ``pybind11/gil_safe_call_once.h`` was added (it needs to be included
explicitly). The primary use case is GIL-safe initialization of C++
``static`` variables.
`#4877 <https://github.com/pybind/pybind11/pull/4877>`_
* Support move-only iterators in ``py::make_iterator``,
``py::make_key_iterator``, ``py::make_value_iterator``.
`#4834 <https://github.com/pybind/pybind11/pull/4834>`_
* Two simple ``py::set_error()`` functions were added and the documentation was
updated accordingly. In particular, ``py::exception<>::operator()`` was
deprecated (use one of the new functions instead). The documentation for
``py::exception<>`` was further updated to not suggest code that may result
in undefined behavior.
`#4772 <https://github.com/pybind/pybind11/pull/4772>`_
Bug fixes:
* Removes potential for Undefined Behavior during process teardown.
`#4897 <https://github.com/pybind/pybind11/pull/4897>`_
* Improve compatibility with the nvcc compiler (especially CUDA 12.1/12.2).
`#4893 <https://github.com/pybind/pybind11/pull/4893>`_
* ``pybind11/numpy.h`` now imports NumPy's ``multiarray`` and ``_internal``
submodules with paths depending on the installed version of NumPy (for
compatibility with NumPy 2).
`#4857 <https://github.com/pybind/pybind11/pull/4857>`_
* Builtins collections names in docstrings are now consistently rendered in
lowercase (list, set, dict, tuple), in accordance with PEP 585.
`#4833 <https://github.com/pybind/pybind11/pull/4833>`_
* Added ``py::typing::Iterator<T>``, ``py::typing::Iterable<T>``.
`#4832 <https://github.com/pybind/pybind11/pull/4832>`_
* Render ``py::function`` as ``Callable`` in docstring.
`#4829 <https://github.com/pybind/pybind11/pull/4829>`_
* Also bump ``PYBIND11_INTERNALS_VERSION`` for MSVC, which unlocks two new
features without creating additional incompatibilities.
`#4819 <https://github.com/pybind/pybind11/pull/4819>`_
* Guard against crashes/corruptions caused by modules built with different MSVC
versions.
`#4779 <https://github.com/pybind/pybind11/pull/4779>`_
* A long-standing bug in the handling of Python multiple inheritance was fixed.
See PR #4762 for the rather complex details.
`#4762 <https://github.com/pybind/pybind11/pull/4762>`_
* Fix ``bind_map`` with ``using`` declarations.
`#4952 <https://github.com/pybind/pybind11/pull/4952>`_
* Qualify ``py::detail::concat`` usage to avoid ADL selecting one from
somewhere else, such as modernjson's concat.
`#4955 <https://github.com/pybind/pybind11/pull/4955>`_
.. fix(types)
* Render typed iterators for ``make_iterator``, ``make_key_iterator``,
``make_value_iterator``.
`#4876 <https://github.com/pybind/pybind11/pull/4876>`_
* Add several missing type name specializations.
`#5073 <https://github.com/pybind/pybind11/pull/5073>`_
* Change docstring render for ``py::buffer``, ``py::sequence`` and
``py::handle`` (to ``Buffer``, ``Sequence``, ``Any``).
`#4831 <https://github.com/pybind/pybind11/pull/4831>`_
* Fixed ``base_enum.__str__`` docstring.
`#4827 <https://github.com/pybind/pybind11/pull/4827>`_
* Enforce single line docstring signatures.
`#4735 <https://github.com/pybind/pybind11/pull/4735>`_
* Special 'typed' wrappers now available in typing.h to annotate tuple, dict,
list, set, and function.
`#4259 <https://github.com/pybind/pybind11/pull/4259>`_
.. fix(build)
* Fix FindPython mode exports & avoid ``pkg_resources`` if
``importlib.metadata`` available.
`#4941 <https://github.com/pybind/pybind11/pull/4941>`_
* ``Python_ADDITIONAL_VERSIONS`` (classic search) now includes 3.12.
`#4909 <https://github.com/pybind/pybind11/pull/4909>`_
* ``pybind11.pc`` is now relocatable by default as long as install destinations
are not absolute paths.
`#4830 <https://github.com/pybind/pybind11/pull/4830>`_
* Correctly detect CMake FindPython removal when used as a subdirectory.
`#4806 <https://github.com/pybind/pybind11/pull/4806>`_
* Don't require the libs component on CMake 3.18+ when using
PYBIND11_FINDPYTHON (fixes manylinux builds).
`#4805 <https://github.com/pybind/pybind11/pull/4805>`_
* ``pybind11_strip`` is no longer automatically applied when
``CMAKE_BUILD_TYPE`` is unset.
`#4780 <https://github.com/pybind/pybind11/pull/4780>`_
* Support DEBUG_POSFIX correctly for debug builds.
`#4761 <https://github.com/pybind/pybind11/pull/4761>`_
* Hardcode lto/thin lto for Emscripten cross-compiles.
`#4642 <https://github.com/pybind/pybind11/pull/4642>`_
Documentation:
* Small fix to grammar in functions.rst.
`#4791 <https://github.com/pybind/pybind11/pull/4791>`_
* Remove upper bound in example pyproject.toml for setuptools.
`#4774 <https://github.com/pybind/pybind11/pull/4774>`_
CI:
* CI: Update NVHPC to 23.5 and Ubuntu 20.04.
`#4764 <https://github.com/pybind/pybind11/pull/4764>`_
* Test on PyPy 3.10.
`#4714 <https://github.com/pybind/pybind11/pull/4714>`_
Other:
* Use new PyCode API on Python 3.12+.
`#4916 <https://github.com/pybind/pybind11/pull/4916>`_
* Use Ruff formatter instead of Black.
`#4912 <https://github.com/pybind/pybind11/pull/4912>`_
* An ``assert()`` was added to help Coverty avoid generating a false positive.
`#4817 <https://github.com/pybind/pybind11/pull/4817>`_
Version 2.11.1 (July 17, 2023)
-----------------------------
------------------------------
Changes:
@ -32,7 +182,7 @@ Changes:
Version 2.11.0 (July 14, 2023)
-----------------------------
------------------------------
New features:

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@ -36,19 +36,19 @@ If you don't have nox, you should either use ``pipx run nox`` instead, or use
- Run ``nox -s tests_packaging`` to ensure this was done correctly.
- Ensure that all the information in ``setup.cfg`` is up-to-date, like
- Ensure that all the information in ``setup.cfg`` is up-to-date, like
supported Python versions.
- Add release date in ``docs/changelog.rst`` and integrate the output of
``nox -s make_changelog``.
- Add release date in ``docs/changelog.rst`` and integrate the output of
``nox -s make_changelog``.
- Note that the ``make_changelog`` command inspects
`needs changelog <https://github.com/pybind/pybind11/pulls?q=is%3Apr+is%3Aclosed+label%3A%22needs+changelog%22>`_.
- Note that the ``nox -s make_changelog`` command inspects
`needs changelog <https://github.com/pybind/pybind11/pulls?q=is%3Apr+is%3Aclosed+label%3A%22needs+changelog%22>`_.
- Manually clear the ``needs changelog`` labels using the GitHub web
interface (very easy: start by clicking the link above).
- Manually clear the ``needs changelog`` labels using the GitHub web
interface (very easy: start by clicking the link above).
- ``git add`` and ``git commit``, ``git push``. **Ensure CI passes**. (If it
- ``git add`` and ``git commit``, ``git push``. **Ensure CI passes**. (If it
fails due to a known flake issue, either ignore or restart CI.)
- Add a release branch if this is a new MINOR version, or update the existing

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@ -8,6 +8,34 @@ to a new version. But it goes into more detail. This includes things like
deprecated APIs and their replacements, build system changes, general code
modernization and other useful information.
.. _upgrade-guide-2.12:
v2.12
=====
NumPy support has been upgraded to support the 2.x series too. The two relevant
changes are that:
* ``dtype.flags()`` is now a ``uint64`` and ``dtype.alignment()`` an
``ssize_t`` (and NumPy may return an larger than integer value for
``itemsize()`` in NumPy 2.x).
* The long deprecated NumPy function ``PyArray_GetArrayParamsFromObject``
function is not available anymore.
Due to NumPy changes, you may experience difficulties updating to NumPy 2.
Please see the [NumPy 2 migration guide](https://numpy.org/devdocs/numpy_2_0_migration_guide.html) for details.
For example, a more direct change could be that the default integer ``"int_"``
(and ``"uint"``) is now ``ssize_t`` and not ``long`` (affects 64bit windows).
If you want to only support NumPy 1.x for now and are having problems due to
the two internal changes listed above, you can define
``PYBIND11_NUMPY_1_ONLY`` to disable the new support for now. Make sure you
define this on all pybind11 compile units, since it could be a source of ODR
violations if used inconsistently. This option will be removed in the future,
so adapting your code is highly recommended.
.. _upgrade-guide-2.11:
v2.11

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@ -11,11 +11,11 @@
#define PYBIND11_VERSION_MAJOR 2
#define PYBIND11_VERSION_MINOR 12
#define PYBIND11_VERSION_PATCH 0.dev1
#define PYBIND11_VERSION_PATCH 0
// Similar to Python's convention: https://docs.python.org/3/c-api/apiabiversion.html
// Additional convention: 0xD = dev
#define PYBIND11_VERSION_HEX 0x020C00D1
#define PYBIND11_VERSION_HEX 0x020C0000
// Define some generic pybind11 helper macros for warning management.
//

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@ -8,5 +8,5 @@ def _to_int(s: str) -> Union[int, str]:
return s
__version__ = "2.12.0.dev1"
__version__ = "2.12.0"
version_info = tuple(_to_int(s) for s in __version__.split("."))

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@ -67,9 +67,11 @@ for issue in issues:
for cat, msgs in cats.items():
if msgs:
desc = cats_descr[cat]
print(f"[bold]{desc}:\n" if desc else "")
print(f"[bold]{desc}:" if desc else f".. {cat}")
print()
for msg in msgs:
print(Syntax(msg, "rst", theme="ansi_light", word_wrap=True))
print()
print()
if missing: