Sync pre-release CPython 3.15 branch from GitHub (2026-09-01)

Summary:
Imported python/cpython `3.15.0rc2+dev` from upstream rev [`e9585e2`](https://www.github.com/python/cpython/commit/e9585e23b82028e5fe9085a5f80f1eaccd51141d) (committed 2026-09-01 21:01:44+00:00).

# Commit Info

- Base: (`3.15.0rc1+dev`) - [`b93576a`](https://www.github.com/python/cpython/commit/b93576a2b66d98ec8fe2bf64de6fd27a7851e1ed) (commit date: 2026-08-31 19:05:08+00:00)
- Imported: (`3.15.0rc2+dev`) - [`e9585e2`](https://www.github.com/python/cpython/commit/e9585e23b82028e5fe9085a5f80f1eaccd51141d) (commit date: 2026-09-01 21:01:44+00:00)

# Noteworthy file changes

- Low-signal files (1 added, 53 removed) (NEWS.d, docs, .github)

Complete list of added/removed files: https://www.internalfb.com/intern/everpaste/?color=0&handle=GEIpVC_4rYoWi4kLAOt9_N2vh4k6br0LAAAz

Differential Revision: D118409610

fbshipit-source-id: 849ca1a78f0492fc8dc13461c66fd186db0172c9

Author: generatedunixname1734921407115435

Doc/c-api/module.rst

@@ -853,7 +853,7 @@ struct:
 
    .. versionadded:: 3.5
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyModule_FromSlotsAndSpec` in new code.
 
@@ -877,7 +877,7 @@ struct:
 
    .. versionadded:: 3.5
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyModule_FromSlotsAndSpec` in new code.
 
@@ -887,7 +887,7 @@ struct:
 
    .. versionadded:: 3.5
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       To run a module's own execution slots, prefer :c:func:`PyModule_Exec`,
       which works on modules that were not created from a

Doc/c-api/type.rst

@@ -824,7 +824,7 @@ They will continue to work, but new features will be added as slots for
 
    .. versionadded:: 3.12
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyType_FromSlots` in new code.
 
@@ -855,7 +855,7 @@ They will continue to work, but new features will be added as slots for
       Creating classes whose metaclass overrides
       :c:member:`~PyTypeObject.tp_new` is no longer allowed.
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyType_FromSlots` in new code.
 
@@ -881,7 +881,7 @@ They will continue to work, but new features will be added as slots for
       Creating classes whose metaclass overrides
       :c:member:`~PyTypeObject.tp_new` is no longer allowed.
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyType_FromSlots` in new code.
 
@@ -906,7 +906,7 @@ They will continue to work, but new features will be added as slots for
       Creating classes whose metaclass overrides
       :c:member:`~PyTypeObject.tp_new` is no longer allowed.
 
-   .. soft-deprecated:: next
+   .. soft-deprecated:: 3.15
 
       Prefer :c:func:`PyType_FromSlots` in new code.
 

Doc/library/concurrent.interpreters.rst

@@ -191,7 +191,7 @@ objects are either directly shared or copied efficiently.  For example:
 * :class:`float`
 * :class:`tuple` (of similarly supported objects)
 
-There is a small number of Python types that actually share mutable
+There are a small number of Python types that actually share mutable
 data between interpreters:
 
 * :class:`memoryview`
@@ -274,7 +274,7 @@ Interpreter objects
 
    .. method:: call(callable, /, *args, **kwargs)
 
-      Return the result of calling running the given function in the
+      Return the result of running the given function in the
       interpreter (in the current thread).
 
    .. _interp-call-in-thread:

Doc/library/tarfile.rst

@@ -1119,7 +1119,7 @@ reused in custom filters:
 
   Return the modified ``TarInfo`` member.
 
-  .. versionchanged:: next
+  .. versionchanged:: 3.15
 
      Filenames containing ``..`` components are now normalized.
 

Doc/library/urllib.request.rst

@@ -992,7 +992,7 @@ These methods are available on :class:`HTTPPasswordMgr` and
    match authentication URIs with the same scheme or no scheme. A URI without a
    scheme matches authentication URIs with any scheme.
 
-   .. versionchanged:: next
+   .. versionchanged:: 3.15
       Authentication credentials for URIs with a scheme are now scoped by
       that scheme.
 

Include/patchlevel.h

@@ -24,10 +24,10 @@
 #define PY_MINOR_VERSION        15
 #define PY_MICRO_VERSION        0
 #define PY_RELEASE_LEVEL        PY_RELEASE_LEVEL_GAMMA
-#define PY_RELEASE_SERIAL       1
+#define PY_RELEASE_SERIAL       2
 
 /* Version as a string */
-#define PY_VERSION              "3.15.0rc1+meta"
+#define PY_VERSION              "3.15.0rc2+meta"
 /*--end constants--*/