Build Changes
=============
-* The :file:`configure` option :option:`--with-system-libmpdec` now defaults
- to ``yes``. The bundled copy of ``libmpdecimal`` will be removed in Python
- 3.15.
+* ``arm64-apple-ios`` and ``arm64-apple-ios-simulator`` are both
+ now :pep:`11` tier 3 platforms.
+ (:ref:`PEP 730 <whatsnew313-platform-support>` written
+ and implementation contributed by Russell Keith-Magee in :gh:`114099`.)
+
+* ``wasm32-wasi`` is now a :pep:`11` tier 2 platform.
+ (Contributed by Brett Cannon in :gh:`115192`.)
+
+* ``wasm32-emscripten`` is no longer a :pep:`11` supported platform.
+ (Contributed by Brett Cannon in :gh:`115192`.)
+
+* Building CPython now requires a compiler with support for the C11 atomic
+ library, GCC built-in atomic functions, or MSVC interlocked intrinsics.
* Autoconf 2.71 and aclocal 1.16.4 are now required to regenerate
the :file:`configure` script.
(Contributed by Christian Heimes in :gh:`89886`.)
-* SQLite 3.15.2 or newer is required to build the :mod:`sqlite3` extension module.
+* SQLite 3.15.2 or newer is required to build
+ the :mod:`sqlite3` extension module.
(Contributed by Erlend Aasland in :gh:`105875`.)
-* Python built with :file:`configure` :option:`--with-trace-refs` (tracing
- references) is now ABI compatible with the Python release build and
- :ref:`debug build <debug-build>`.
+* CPython now bundles the `mimalloc library`_ by default.
+ It is licensed under the MIT license;
+ see :ref:`mimalloc license <mimalloc-license>`.
+ The bundled mimalloc has custom changes, see :gh:`113141` for details.
+ (Contributed by Dino Viehland in :gh:`109914`.)
+
+ .. _mimalloc library: https://github.com/microsoft/mimalloc/
+
+* The :file:`configure` option :option:`--with-system-libmpdec`
+ now defaults to ``yes``.
+ The bundled copy of ``libmpdecimal`` will be removed in Python 3.15.
+
+* Python built with :file:`configure` :option:`--with-trace-refs`
+ (tracing references) is now ABI compatible with the Python release build
+ and :ref:`debug build <debug-build>`.
(Contributed by Victor Stinner in :gh:`108634`.)
-* Building CPython now requires a compiler with support for the C11 atomic
- library, GCC built-in atomic functions, or MSVC interlocked intrinsics.
+* On POSIX systems, the pkg-config (``.pc``) filenames now include the ABI
+ flags. For example, the free-threaded build generates ``python-3.13t.pc``
+ and the debug build generates ``python-3.13d.pc``.
* The ``errno``, ``fcntl``, ``grp``, ``md5``, ``pwd``, ``resource``,
``termios``, ``winsound``,
C extensions are now built with the :ref:`limited C API <limited-c-api>`.
(Contributed by Victor Stinner in :gh:`85283`.)
-* ``wasm32-wasi`` is now a :pep:`11` tier 2 platform.
- (Contributed by Brett Cannon in :gh:`115192`.)
-
-* ``wasm32-emscripten`` is no longer a :pep:`11` supported platform.
- (Contributed by Brett Cannon in :gh:`115192`.)
-
-* Python now bundles the `mimalloc library <https://github.com/microsoft/mimalloc>`__.
- It is licensed under the MIT license; see :ref:`mimalloc license <mimalloc-license>`.
- The bundled mimalloc has custom changes, see :gh:`113141` for details.
- (Contributed by Dino Viehland in :gh:`109914`.)
-
-* On POSIX systems, the pkg-config (``.pc``) filenames now include the ABI
- flags. For example, the free-threaded build generates ``python-3.13t.pc``
- and the debug build generates ``python-3.13d.pc``.
-
Porting to Python 3.13
======================