Home » Oreps » Cpython » All Releases » v3.15.0a4 Release
python/cpython
The Python programming language
Watch
0
Commit Activity
Directory Browser
Velocity History
Releasesv3.15.0a4
Basic Details Issues Addressed Top Contributors Directory Browser
Cpython v3.15.0a4

Cpython: v3.15.0a4 Release

Release date:
January 13, 2026
Previous version:
v3.15.0a3 (released December 16, 2025)
Magnitude:
2,400 Diff Delta
Contributors:
18 total committers
Data confidence:
Commits:
25 impacting commits

35 Features Released with v3.15.0a4

gh-142560: bytearray: prevent UAF in search-like methods by exporting self buffer
#142938
gh-84232: Fix `pydoc` docs.python.org link generation
#139995
gh-138122: Improve bytecode panel
#142910
gh-142927: Tachyon: Start with user's default light/dark theme
#142987
gh-76007: Deprecate `VERSION` in `xml.etree.ElementTree` & `version` in `xml.sax.expatreader` & `xml.sax.handler`
#142898
gh-138122: Update Tachyon dark theme colors
#142841
JIT: Rename trampoline.c to shim.c
#142974
gh-143046: Make asyncio REPL respect the `-q` flag (quiet mode)
#143047
gh-142836: Avoid /proc fd pipes on Solaris
#142853
gh-142784: Make the asyncio REPL call `.close()` on the loop
#142785
GH-100964: Fix reference cycle in exhausted generator frames
#141112
gh-91048: Refactor common data into context object in Modukes/_remote_debugging
#142879
gh-142873: Do not check for `PyContextVar_CheckExact` twice in `PyContextVar_Set`
#142874
gh-142876: Remove reference to thread in documentation of `asyncio.Queue.shutdown`.
#142888
gh-138122: Validate base frame before caching in remote debugging frame cache
#142852
Use other name for JIT contributor
#142877
gh-139038: Add JIT What's New for 3.15
#142845
gh-142859: Add `Tools/check-c-api-docs` to mypy check
#142860
gh-142654: show the clear error message when sampling on an unknown PID
#142655
gh-140374: Add glossary entries related to multithreading
#140375
gh-142752: add more thread safety tests for mock
#142791
gh-142890: remove unnecessary interp parameter from dict functions and `_PyDict_NotifyEvent`
#142923
gh-143012: PyBytes_FromStringAndSize should have a Py_ssize_t passed
#143013
gh-142527: Docs: Clarify that random.seed() discards the sign of an integer input
#142483
GH-134584: Remove redundant refcount for `BINARY_OP_SUBSCR_STR_INT`
#142844
gh-142145: relax the no-longer-quadratic test timing
#143030
gh-142834: pdb commands command should use last available breakpoint
#142835
gh-129069: fix more thread safety issues in list
#143019
gh-143057: avoid lock in tracemalloc APIs when it is not enabled
#143065
gh-142927: Tachyon: Comma separate thousands and fix singular/plurals
#142934

Browse Other Releases

v3.15.0a5 Released January 14, 2026
0 Ξ”
v3.15.0a4 Released January 13, 2026
2,400 Ξ”
v3.15.0a3 Released December 16, 2025
9,066 Ξ”
v3.15.0a2 Released December 8, 2025
8,044 Ξ”
v3.15.0a1 Released October 14, 2025
27,178 Ξ”
v3.14.2 Released December 5, 2025
208 Ξ”
v3.14.1 Released December 2, 2025
1,389 Ξ”
v3.14.0 Released October 7, 2025
190 Ξ”
v3.14.0rc3 Released September 18, 2025
387 Ξ”
v3.14.0rc2 Released August 14, 2025
0 Ξ”

Top Contributors in v3.15.0a4

Zheaoli
fatelei
jihugo
ivonastojanovic
StanFromIreland
LindaSummer
stratakis
johnslavik
diegorusso
benjaminJohnson2204

Directory Browser for v3.15.0a4

We haven't yet finished calculating and confirming the files and directories changed in this release. Please check back soon.

GitClear uses cookies to ensure you get the best experience on our website. Learn more about our cookie policy