chore: prepare 2.12.0

Signed-off-by: Henry Schreiner <[email protected]>

Author: henryiii

docs/changelog.rst

@@ -16,6 +16,125 @@ IN DEVELOPMENT
 Changes will be summarized here periodically.
 
 
+New Features:
+
+* ``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 function 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:
+
+* ``pybind11`` now supports compiling for NumPy 2.  The required changes are
+  small and should not matter to most projects. However, if you experience
+  issues you can use   ``#define PYBIND11_NUMPY_1_ONLY`` to disable the new
+  support for now.
+  `#5050 <https://github.com/pybind/pybind11/pull/5050>`_
+
+* 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 version of installed NumPy (handling change in NumPy 2.0).
+  `#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>`_
+
+
+* Render typed iterators for ``make_iterator``, ``make_key_iterator``, ``make_value_iterator``.
+  `#4876 <https://github.com/pybind/pybind11/pull/4876>`_
+
+* 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 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)
 -----------------------------
 

docs/release.rst

@@ -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

include/pybind11/detail/common.h

@@ -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.
 //

pybind11/_version.py

@@ -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("."))

tools/make_changelog.py

@@ -67,9 +67,10 @@
 for cat, msgs in cats.items():
     if msgs:
         desc = cats_descr[cat]
-        print(f"[bold]{desc}:\n" if desc else "")
+        print(f"[bold]{desc}:\n\n" if desc else "", end="")
         for msg in msgs:
             print(Syntax(msg, "rst", theme="ansi_light", word_wrap=True))
+            print()
         print()
 
 if missing: