@@ -2819,41 +2819,6 @@ CPython bytecode changes
28192819* Replaced the opcode ``BINARY_SUBSCR `` by :opcode: `BINARY_OP ` with oparg ``NB_SUBSCR ``.
28202820 (Contributed by Irit Katriel in :gh: `100239 `.)
28212821
2822- Porting to Python 3.14
2823- ======================
2824- 2825- This section lists previously described changes and other bugfixes
2826- that may require changes to your code.
2827- 2828- Changes in the Python API
2829- -------------------------
2830- 2831- * :class: `functools.partial ` is now a method descriptor.
2832- Wrap it in :func: `staticmethod ` if you want to preserve the old behavior.
2833- (Contributed by Serhiy Storchaka and Dominykas Grigonis in :gh: `121027 `.)
2834- 2835- * The :ref: `garbage collector is now incremental <whatsnew314-incremental-gc >`,
2836- which means that the behavior of :func: `gc.collect ` changes slightly:
2837- 2838- * ``gc.collect(1) ``: Performs an increment of garbage collection,
2839- rather than collecting generation 1.
2840- * Other calls to :func: `!gc.collect ` are unchanged.
2841- 2842- * The :func: `locale.nl_langinfo ` function now temporarily sets the ``LC_CTYPE ``
2843- locale in some cases.
2844- This temporary change affects other threads.
2845- (Contributed by Serhiy Storchaka in :gh: `69998 `.)
2846- 2847- * :class: `types.UnionType ` is now an alias for :class: `typing.Union `,
2848- causing changes in some behaviors.
2849- See :ref: `above <whatsnew314-typing-union >` for more details.
2850- (Contributed by Jelle Zijlstra in :gh: `105499 `.)
2851- 2852- * The runtime behavior of annotations has changed in various ways; see
2853- :ref: `above <whatsnew314-pep649 >` for details. While most code that interacts
2854- with annotations should continue to work, some undocumented details may behave
2855- differently.
2856- 28572822
28582823Build changes
28592824=============
@@ -3048,63 +3013,6 @@ Limited C API changes
30483013 (Contributed by Victor Stinner in :gh: `91417 `.)
30493014
30503015
3051- Porting to Python 3.14
3052- ----------------------
3053- 3054- * :c:func: `Py_Finalize ` now deletes all interned strings. This
3055- is backwards incompatible to any C-Extension that holds onto an interned
3056- string after a call to :c:func: `Py_Finalize ` and is then reused after a
3057- call to :c:func: `Py_Initialize `. Any issues arising from this behavior will
3058- normally result in crashes during the execution of the subsequent call to
3059- :c:func: `Py_Initialize ` from accessing uninitialized memory. To fix, use
3060- an address sanitizer to identify any use-after-free coming from
3061- an interned string and deallocate it during module shutdown.
3062- (Contributed by Eddie Elizondo in :gh: `113601 `.)
3063- 3064- * The :ref: `Unicode Exception Objects <unicodeexceptions >` C API
3065- now raises a :exc: `TypeError ` if its exception argument is not
3066- a :exc: `UnicodeError ` object.
3067- (Contributed by Bénédikt Tran in :gh: `127691 `.)
3068- 3069- .. _whatsnew314-refcount :
3070- 3071- * The interpreter internally avoids some reference count modifications when
3072- loading objects onto the operands stack by :term: `borrowing <borrowed reference> `
3073- references when possible. This can lead to smaller reference count values
3074- compared to previous Python versions. C API extensions that checked
3075- :c:func: `Py_REFCNT ` of ``1 `` to determine if an function argument is not
3076- referenced by any other code should instead use
3077- :c:func: `PyUnstable_Object_IsUniqueReferencedTemporary ` as a safer replacement.
3078- 3079- 3080- * Private functions promoted to public C APIs:
3081- 3082- * ``_PyBytes_Join() ``: :c:func: `PyBytes_Join `
3083- * ``_PyLong_IsNegative() ``: :c:func: `PyLong_IsNegative `
3084- * ``_PyLong_IsPositive() ``: :c:func: `PyLong_IsPositive `
3085- * ``_PyLong_IsZero() ``: :c:func: `PyLong_IsZero `
3086- * ``_PyLong_Sign() ``: :c:func: `PyLong_GetSign `
3087- * ``_PyUnicodeWriter_Dealloc() ``: :c:func: `PyUnicodeWriter_Discard `
3088- * ``_PyUnicodeWriter_Finish() ``: :c:func: `PyUnicodeWriter_Finish `
3089- * ``_PyUnicodeWriter_Init() ``: use :c:func: `PyUnicodeWriter_Create `
3090- * ``_PyUnicodeWriter_Prepare() ``: (no replacement)
3091- * ``_PyUnicodeWriter_PrepareKind() ``: (no replacement)
3092- * ``_PyUnicodeWriter_WriteChar() ``: :c:func: `PyUnicodeWriter_WriteChar `
3093- * ``_PyUnicodeWriter_WriteStr() ``: :c:func: `PyUnicodeWriter_WriteStr `
3094- * ``_PyUnicodeWriter_WriteSubstring() ``: :c:func: `PyUnicodeWriter_WriteSubstring `
3095- * ``_PyUnicode_EQ() ``: :c:func: `PyUnicode_Equal `
3096- * ``_PyUnicode_Equal() ``: :c:func: `PyUnicode_Equal `
3097- * ``_Py_GetConfig() ``: :c:func: `PyConfig_Get ` and :c:func: `PyConfig_GetInt `
3098- * ``_Py_HashBytes() ``: :c:func: `Py_HashBuffer `
3099- * ``_Py_fopen_obj() ``: :c:func: `Py_fopen `
3100- * ``PyMutex_IsLocked() `` : :c:func: `PyMutex_IsLocked `
3101- 3102- The `pythoncapi-compat project `_ can be used to get most of these new
3103- functions on Python 3.13 and older.
3104- 3105- .. _pythoncapi-compat project : https://github.com/python/pythoncapi-compat/
3106- 3107- 31083016.. _whatsnew314-c-api-deprecated :
31093017
31103018Deprecated
@@ -3210,3 +3118,97 @@ Removed
32103118 Please use :c:func: `Py_EnterRecursiveCall ` to guard against runaway recursion
32113119 in C code.
32123120 (Removed in :gh: `133079 `, see also :gh: `130396 `.)
3121+ 3122+ 3123+ Porting to Python 3.14
3124+ ======================
3125+ 3126+ This section lists previously described changes and other bugfixes
3127+ that may require changes to your code.
3128+ 3129+ 3130+ Changes in the Python API
3131+ -------------------------
3132+ 3133+ * :class: `functools.partial ` is now a method descriptor.
3134+ Wrap it in :func: `staticmethod ` if you want to preserve the old behavior.
3135+ (Contributed by Serhiy Storchaka and Dominykas Grigonis in :gh: `121027 `.)
3136+ 3137+ * The :ref: `garbage collector is now incremental <whatsnew314-incremental-gc >`,
3138+ which means that the behavior of :func: `gc.collect ` changes slightly:
3139+ 3140+ * ``gc.collect(1) ``: Performs an increment of garbage collection,
3141+ rather than collecting generation 1.
3142+ * Other calls to :func: `!gc.collect ` are unchanged.
3143+ 3144+ * The :func: `locale.nl_langinfo ` function now temporarily sets the ``LC_CTYPE ``
3145+ locale in some cases.
3146+ This temporary change affects other threads.
3147+ (Contributed by Serhiy Storchaka in :gh: `69998 `.)
3148+ 3149+ * :class: `types.UnionType ` is now an alias for :class: `typing.Union `,
3150+ causing changes in some behaviors.
3151+ See :ref: `above <whatsnew314-typing-union >` for more details.
3152+ (Contributed by Jelle Zijlstra in :gh: `105499 `.)
3153+ 3154+ * The runtime behavior of annotations has changed in various ways; see
3155+ :ref: `above <whatsnew314-pep649 >` for details. While most code that interacts
3156+ with annotations should continue to work, some undocumented details may behave
3157+ differently.
3158+ 3159+ 3160+ Changes in the C API
3161+ --------------------
3162+ 3163+ * :c:func: `Py_Finalize ` now deletes all interned strings. This
3164+ is backwards incompatible to any C extension that holds onto an interned
3165+ string after a call to :c:func: `Py_Finalize ` and is then reused after a
3166+ call to :c:func: `Py_Initialize `. Any issues arising from this behavior will
3167+ normally result in crashes during the execution of the subsequent call to
3168+ :c:func: `Py_Initialize ` from accessing uninitialized memory. To fix, use
3169+ an address sanitizer to identify any use-after-free coming from
3170+ an interned string and deallocate it during module shutdown.
3171+ (Contributed by Eddie Elizondo in :gh: `113601 `.)
3172+ 3173+ * The :ref: `Unicode Exception Objects <unicodeexceptions >` C API
3174+ now raises a :exc: `TypeError ` if its exception argument is not
3175+ a :exc: `UnicodeError ` object.
3176+ (Contributed by Bénédikt Tran in :gh: `127691 `.)
3177+ 3178+ .. _whatsnew314-refcount :
3179+ 3180+ * The interpreter internally avoids some reference count modifications when
3181+ loading objects onto the operands stack by :term: `borrowing <borrowed reference> `
3182+ references when possible. This can lead to smaller reference count values
3183+ compared to previous Python versions. C API extensions that checked
3184+ :c:func: `Py_REFCNT ` of ``1 `` to determine if an function argument is not
3185+ referenced by any other code should instead use
3186+ :c:func: `PyUnstable_Object_IsUniqueReferencedTemporary ` as a safer replacement.
3187+ 3188+ 3189+ * Private functions promoted to public C APIs:
3190+ 3191+ * ``_PyBytes_Join() ``: :c:func: `PyBytes_Join `
3192+ * ``_PyLong_IsNegative() ``: :c:func: `PyLong_IsNegative `
3193+ * ``_PyLong_IsPositive() ``: :c:func: `PyLong_IsPositive `
3194+ * ``_PyLong_IsZero() ``: :c:func: `PyLong_IsZero `
3195+ * ``_PyLong_Sign() ``: :c:func: `PyLong_GetSign `
3196+ * ``_PyUnicodeWriter_Dealloc() ``: :c:func: `PyUnicodeWriter_Discard `
3197+ * ``_PyUnicodeWriter_Finish() ``: :c:func: `PyUnicodeWriter_Finish `
3198+ * ``_PyUnicodeWriter_Init() ``: use :c:func: `PyUnicodeWriter_Create `
3199+ * ``_PyUnicodeWriter_Prepare() ``: (no replacement)
3200+ * ``_PyUnicodeWriter_PrepareKind() ``: (no replacement)
3201+ * ``_PyUnicodeWriter_WriteChar() ``: :c:func: `PyUnicodeWriter_WriteChar `
3202+ * ``_PyUnicodeWriter_WriteStr() ``: :c:func: `PyUnicodeWriter_WriteStr `
3203+ * ``_PyUnicodeWriter_WriteSubstring() ``: :c:func: `PyUnicodeWriter_WriteSubstring `
3204+ * ``_PyUnicode_EQ() ``: :c:func: `PyUnicode_Equal `
3205+ * ``_PyUnicode_Equal() ``: :c:func: `PyUnicode_Equal `
3206+ * ``_Py_GetConfig() ``: :c:func: `PyConfig_Get ` and :c:func: `PyConfig_GetInt `
3207+ * ``_Py_HashBytes() ``: :c:func: `Py_HashBuffer `
3208+ * ``_Py_fopen_obj() ``: :c:func: `Py_fopen `
3209+ * ``PyMutex_IsLocked() `` : :c:func: `PyMutex_IsLocked `
3210+ 3211+ The `pythoncapi-compat project `_ can be used to get most of these new
3212+ functions on Python 3.13 and older.
3213+ 3214+ .. _pythoncapi-compat project : https://github.com/python/pythoncapi-compat/
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