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Cpython v3.12.0a4

Cpython: v3.12.0a4 Release

Release date:
January 10, 2023
Previous version:
v3.12.0a3 (released December 6, 2022)
Magnitude:
23,052 Diff Delta
Contributors:
118 total committers
Data confidence:
Commits:
279 impacting commits

170 Features Released with v3.12.0a4

gh-99955: standardize return values of functions in compiler's code-gen
#100010
GH-98831: Typed stack effects, and more instructions converted
#99764
GH-98831: Modernize a ton of simpler instructions
#100545
gh-100357: Convert several functions in `bltinsmodule` to AC
#100358
GH-98831: Update generate_cases.py: register inst, opcode_metadata.h
#100735
gh-100228: Warn from os.fork() if other threads exist.
#100229
gh-98724: Fix Py_CLEAR() macro side effects
#99100
GH-91166: zero copy SelectorSocketTransport transport implementation
#31871
gh-89727: Fix os.walk RecursionError on deep trees
#99803
GH-98831: Add some tests for generate_cases.py
#100763
gh-100344: Provide C implementation for asyncio.current_task
#100345
GH-98831: Add DECREF_INPUTS(), expanding to DECREF() each stack input
#100205
GH-100363: Speed up `asyncio.get_running_loop`
#100364
gh-81057: Move Threading-Related Globals to _PyRuntimeState
#100084
gh-83076: 3.8x speed improvement in (Async)Mock instantiation
#100252
gh-78997: fix bad rebase of moved test file
#100424
gh-94155: Reduce hash collisions for code objects
#100183
gh-96127: Fix `inspect.signature` call on mocks
#96335
GH-100222: Redefine _Py_CODEUNIT as a union to clarify structure of code unit.
#100223
gh-100086: Add build info to test.libregrtest
#100093
GH-100192: add more `asyncio` subprocess tests
#100194
gh-99240: Reset pointer to NULL when the pointed memory is freed in argument parsing
#99890
gh-100689: Revert "bpo-41798: pyexpat: Allocate the expat_CAPI on the…
#100745
gh-85267: Improvements to inspect.signature __text_signature__ handling
#98796
gh-83035: handle decorator with nested parens in inspect.getsource
#99654
gh-100146: Steal references from stack when building a list
#100147
gh-95882: fix regression in the traceback of exceptions propagated from inside a contextlib context manager
#95883
gh-81057: Move the Cached Parser Dummy Name to _PyRuntimeState
#100277
gh-98030: socket: add missing TCP socket options
#98031
gh-88500: Reduce memory use of `urllib.unquote`
#96763

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Top Contributors in v3.12.0a4

gvanrossum
iritkatriel
ericsnowcurrently
markshannon
sobolevn
kumaraditya303
rhettinger
barneygale
brandtbucher
carljm

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