PEP 675 - Arbitrary Literal String Type.On average, we measured a 1.22x speedup on the standard benchmark suite. Python 3.11 is up to 10-60% faster than Python 3.10.

The Faster CPython Project is already yielding some exciting results.gh-34627 - Atomic grouping ( (?>.)) and possessive quantifiers ( *+, ++, ?+, +) are now supported in regular expressions.gh-90908 - Introduce task groups to asyncio.PEP 680 - tomllib: Support for Parsing TOML in the Standard Library.PEP 654 - Exception Groups and except*.PEP 657 - Include Fine-Grained Error Locations in Tracebacks.Some of the new major new features and changes in Python 3.11 are: General changes Major new features of the 3.11 series, compared to 3.10 Security issue reported as CVE-2023-40217 by Aapo Oksman. gh-108310: Fixed an issue where instances of ssl.SSLSocket were vulnerable to a bypass of the TLS handshake and included protections (like certificate verification) and treating sent unencrypted data as if it were post-handshake TLS encrypted data.Python 3.11.5 is the newest major release of the Python programming language, and it contains many new features and optimizations. This is the fifth maintenance release of Python 3.11

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