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Python 3.11.1

Release Date: Dec. 6, 2022

Python 3.11 release logo

This is the first maintenance release of Python 3.11

Python 3.11.1 is the newest major release of the Python programming language, and it contains many new features and optimizations.

Major new features of the 3.11 series, compared to 3.10

Some of the new major new features and changes in Python 3.11 are:

General changes

  • PEP 657 -- Include Fine-Grained Error Locations in Tracebacks
  • PEP 654 -- Exception Groups and except*
  • PEP 680 -- tomllib: Support for Parsing TOML in the Standard Library
  • gh-90908 -- Introduce task groups to asyncio
  • gh-34627 -- Atomic grouping ((?>...)) and possessive quantifiers (*+, ++, ?+, {m,n}+) are now supported in regular expressions.
  • The Faster CPython Project is already yielding some exciting results. Python 3.11 is up to 10-60% faster than Python 3.10. On average, we measured a 1.22x speedup on the standard benchmark suite. See Faster CPython for details.

Typing and typing language changes

  • PEP 673 -- Self Type
  • PEP 646 -- Variadic Generics
  • PEP 675 -- Arbitrary Literal String Type
  • PEP 655 -- Marking individual TypedDict items as required or potentially-missing
  • PEP 681 -- Data Class Transforms

More resources

And now for something completely different

Quark–gluon plasma (QGP) or quark soup is an interacting localized assembly of quarks and gluons at thermal and chemical equilibrium. The word plasma signals that free colour charges are allowed. In a 1987 summary, Léon van Hove pointed out the equivalence of the three terms: quark-gluon plasma, quark matter and a new state of matter. Since the temperature is above the Hagedorn temperature—and thus above the scale of light u,d-quark mass—the pressure exhibits the relativistic Stefan-Boltzmann format governed by temperature to the fourth power (T^4) and many practically massless quark and gluon constituents. It can be said that QGP emerges to be the new phase of strongly interacting matter which manifests its physical properties in terms of nearly free dynamics of practically massless gluons and quarks. Both quarks and gluons must be present in conditions near chemical equilibrium with their colour charge open for a new state of matter to be referred to as QGP.

In the Big Bang theory, quark–gluon plasma filled the entire Universe before matter as we know it was created. Theories predicting the existence of quark–gluon plasma were developed in the late 1970s and early 1980s. Discussions around heavy ion experimentation followed suit and the first experiment proposals were put forward at CERN and BNL in the following years. Quark–gluon plasma was detected for the first time in the laboratory at CERN in the year 2000.

Full Changelog


Version Operating System Description MD5 Sum File Size GPG Sigstore
Gzipped source tarball Source release 5c986b2865979b393aa50a31c65b64e8 25.2 MB SIG .sigstore
XZ compressed source tarball Source release 4efe92adf28875c77d3b9b2e8d3bc44a 18.9 MB SIG .sigstore
macOS 64-bit universal2 installer macOS for macOS 10.9 and later 7c4d83ac21cf1e0470aa133ef6a1fff6 40.7 MB SIG CRT SIG
Windows installer (64-bit) Windows Recommended 3a02deed11f7ff4dbc1188d201ad164a 24.1 MB SIG CRT SIG
Windows installer (ARM64) Windows Experimental 3a98e0f9754199d99a7a97a6dacb0d91 23.2 MB SIG CRT SIG
Windows embeddable package (64-bit) Windows f16900451e15abe1ba3ea657f3c7fe9e 10.1 MB SIG CRT SIG
Windows embeddable package (32-bit) Windows cc960a3a6d5d1529117c463ac00aae43 9.1 MB SIG CRT SIG
Windows embeddable package (ARM64) Windows 405185d5ef1f436f8dbc370a868a2a85 9.3 MB SIG CRT SIG
Windows installer (32 -bit) Windows a592f5db4f45ddc3a46c0ae465d3bee0 22.9 MB SIG CRT SIG