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'wave' additions in 3.15 release notes are under the wrong subheading

docsDocumentation in the Doc dirDocumentation in the Doc dir

Status: Open.

#148257 In python/cpython;

· mbeijen opened on Apr 8, 2026

JIT: drop -fno-plt on Linux x86-64

topic-JIT

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148256 In python/cpython;

· diegorusso opened on Apr 8, 2026

Windows PGO Tailcall build failed with: Child node "6" exited prematurely

buildThe build process and cross-buildThe build process and cross-build

OS-windows

Status: Open.

#148255 In python/cpython;

· vstinner opened on Apr 8, 2026

timeit hardcodes plural "secs"

easy

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148254 In python/cpython;

· StanFromIreland opened on Apr 8, 2026

_remote_debugging: prevent 32-bit integer overflow when decoding stack data from .pyb files

Status: Open.

#148252 In python/cpython;

· pablogsal opened on Apr 8, 2026

[C API] PyUnicodeWriter_WriteStr() and str subclasses

topic-C-API

Status: Open.

#148250 In python/cpython;

· vstinner opened on Apr 8, 2026

Tests fail when _interpreters extension is disabled

testsTests in the Lib/test dirTests in the Lib/test dir

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148244 In python/cpython;

· TrueCat17 opened on Apr 8, 2026

Behaviour change in defaultdict.__missing__ between 3.13.11 and 3.13.12

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148242 In python/cpython;

· cbourjau opened on Apr 8, 2026

String enums in dicts/lists are json serialized differently in Python 3.15

stdlibStandard Library Python modules in the Lib/ directoryStandard Library Python modules in the Lib/ directory

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148241 In python/cpython;

· befeleme opened on Apr 8, 2026

check_extension_modules.py hangs build due to SIGTTIN

type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

Status: Open.

#148240 In python/cpython;

· haampie opened on Apr 8, 2026

Cross-interpreter support for efficient sharing of frozendicts

extension-modulesC modules in the Modules dirC modules in the Modules dir

topic-subinterpreters

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148234 In python/cpython;

· a-reich opened on Apr 8, 2026

Adding Py_HashBuffer to the Stable ABI

type-featureA feature request or enhancementA feature request or enhancement

Status: Open.

#148233 In python/cpython;

· jakirkham opened on Apr 7, 2026