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docs: prepare for 2.13.2 #5299

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docs: prepare for 2.13.2
henryiii Aug 13, 2024
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58 changes: 58 additions & 0 deletions docs/changelog.rst
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Expand Up @@ -15,6 +15,64 @@ IN DEVELOPMENT

Changes will be summarized here periodically.

New Features:

* Support for Python 3.7 was removed. (Official end-of-life: 2023-06-27).
`#5191 <https://github.com/pybind/pybind11/pull/5191>`_

Support for CMake older than 3.15 and some older compilers will also be removed.

Version 2.13.2 (August 13, 2024)
--------------------------------

New Features:

* A ``pybind11::detail::type_caster_std_function_specializations`` feature was added, to support specializations for
``std::function``'s with return types that require custom to-Python conversion behavior (to primary use case is to catch and
convert exceptions).
`#4597 <https://github.com/pybind/pybind11/pull/4597>`_


Changes:


* Use ``PyMutex`` instead of ``std::mutex`` for internal locking in the free-threaded build.
`#5219 <https://github.com/pybind/pybind11/pull/5219>`_

* Add a special type annotation for C++ empty tuple.
`#5214 <https://github.com/pybind/pybind11/pull/5214>`_

* When compiling for WebAssembly, add the required exception flags (CMake 3.13+).
`#5298 <https://github.com/pybind/pybind11/pull/5298>`_

Bug fixes:

* Make ``gil_safe_call_once_and_store`` thread-safe in free-threaded CPython.
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Could we move these to a new Modernizations: section? — Calling these bugs isn't really fair (to ourselves).

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I don't want to add a new section, and this one specifically is a bug fix. The one below (PyMutex) isn't really a bug fix, and is somewhat important, so I could put it under New Features.

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We've had a "Changes" section in the past, so I moved several things to that section.

`#5246 <https://github.com/pybind/pybind11/pull/5246>`_

* A missing ``#include <algorithm>`` in pybind11/typing.h was added to fix build errors (in case user code does not already depend
on that include).
`#5208 <https://github.com/pybind/pybind11/pull/5208>`_

* Fix regression introduced in #5201 for GCC<10.3 in C++20 mode.
`#5205 <https://github.com/pybind/pybind11/pull/5205>`_


.. fix(cmake)

* Remove extra = when assigning flto value in the case for Clang in CMake.
`#5207 <https://github.com/pybind/pybind11/pull/5207>`_


Tests:

* Adding WASM testing to our CI (Pyodide / Emscripten via scikit-build-core).
`#4745 <https://github.com/pybind/pybind11/pull/4745>`_

* clang-tidy (in GitHub Actions) was updated from clang 15 to clang 18.
`#5272 <https://github.com/pybind/pybind11/pull/5272>`_


Version 2.13.1 (June 26, 2024)
------------------------------

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