# Python 3.14 Published articles for Python 3.14. This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles. ## Python 3.14 free-threaded build is now available in RHEL DevFeed: [Python 3.14 free-threaded build is now available in RHEL]() Original publisher: [Read original article]() Author: Lumír Balhar Published: 2026-09-14T13:01:41Z Content type: release Language: en Sources: [Red Hat](), [Red Hat Developer]() Topics: [Python 3.14](), [Python](), [Concurrency](), [Linux](), [Concurrent Programming](), [cpu]() Tags: [cpu](), [developer-tools](), [developers](), [linux](), [performance](), [programming-languages-frameworks](), [python](), [python-3-14](), [red-hat](), [release](), [rhel](), [thread](), [upstream-release]() ### AI overview Red Hat Enterprise Linux 9.8 and 10.2 now provide a free-threaded Python 3.14 build through the Red Hat CodeReady Linux Builder repositories. With the GIL disabled, CPU-bound Python threads can execute in parallel across multiple CPU cores within a single process. The article explains expected performance benefits, installation, verification, and possible thread-safety issues in existing code. ### Source excerpt Developers on Red Hat Enterprise Linux 9.8 and 10.2 can now test full parallel CPU execution in Python using the new free-threaded Python 3.14 build. In addition to the regular Python 3.14 interpreter, we also provide the free-threaded variant in the Red Hat CodeReady Linux Builder repositories. Python 3.14 is the first upstream release where the free-threaded build is officially supported rather than experimental. The post Python 3.14 free-threaded build is now available in RHEL appeared first on Red Hat Developer. ## Vercel Sandbox now runs on Vercel Managed Images DevFeed: [Vercel Sandbox now runs on Vercel Managed Images]() Original publisher: [Read original article]() Author: Luke Phillips-Sheard Published: 2026-08-10T18:00:00Z Content type: release Language: en Sources: [Vercel News]() Topics: [Vercel](), [releases](), [SDKs](), [Node.js](), [Python](), [Security](), [Ubuntu](), [Python 3.14](), [Tooling](), [Arch Linux]() Tags: [claude-code](), [codex](), [coding-agents](), [linux](), [node-js](), [open-source](), [python](), [python-3-14](), [releases](), [sdk](), [security](), [ubuntu](), [vercel]() ### AI overview Vercel introduces Managed Images, versioned open-source base images for Vercel Sandbox that replace deprecated runtimes. The default universal image runs on Ubuntu and includes Node.js, Python, coding agents, and common utilities, with rolling releases, pinned dependencies, and digest-based immutability options. ### Source excerpt Today we are introducing Vercel Managed Images (VMI), a set of versioned, open-source base images you can use as-is or extend. The source for every image lives in the public vercel/sandbox repository. Managed images replace Sandbox runtimes, which are now deprecated. Starting with version 3 of the Sandbox SDK, new sandboxes default to vercel/sandbox/universal:latest. It ships with Node.js, Python, common coding agents and standard utilities, so most users never build a custom image or install packages at boot. The universal image switches our default operating system from Amazon Linux to Ubuntu, a lighter and more widely used system across the industry. Secure by default Every managed image gets a nightly release. Rolling tags such as latest and the major-version tags pick up operating system and dependency updates automatically, including security patches and new releases of Node.js, Python, and the preinstalled coding agents. Within each release, dependencies are pinned to specific versions wherever possible, so a given image version stays consistent. If you need a fully immutable, reproducible environment, pin to an image digest (SHA). Digest-pinned images opt out of automatic updates. Choose a managed image from the catalog Each managed image targets a different starting point: vercel/sandbox/universal:latest is the new default, a rolling release on Ubuntu 26.04 with Node.js 24, Python 3.14 with uv, the opencode, claude-code, codex, and pi coding agents, and utilities including git, vim, nano, tmux, ripgrep, jq, and fzf. vercel/sandbox/node:22, node:24, and node:26 provide Node.js versions on Ubuntu 26.04. vercel/sandbox/python:3.14 provides Python on Ubuntu 26.04. vercel/sandbox/ubuntu:latest provides base Ubuntu 26.04 with no extra tooling. vercel/sandbox/arch:latest provides Arch Linux, regularly updated, with no Node.js or Python preinstalled. Its large package repository makes it useful for agents that install tools on the fly. Reference an image and migrat ## Python 3.14.7 and 3.13.15 are now available! DevFeed: [Python 3.14.7 and 3.13.15 are now available!]() Original publisher: [Read original article]() Author: Thomas Wouters Published: 2026-08-05T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.13](), [Python 3.14](), [releases](), [bug](), [Python]() Tags: [bug](), [community](), [contributors](), [documentation](), [github](), [python-3-13](), [python-3-14](), [releases](), [resources](), [storage](), [ubuntu](), [windows]() ### AI overview Python 3.14.7 and Python 3.13.15 are maintenance releases containing bug fixes, build improvements, and documentation changes. ### Source excerpt A pair of bug fix releases await your upgrade. ## Mitigated API authentication bypass for python.org download metadata DevFeed: [Mitigated API authentication bypass for python.org download metadata]() Original publisher: [Read original article]() Author: Seth Larson Published: 2026-06-23T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [vulnerability](), [Authentication](), [Python](), [Security](), [API](), [psrt](), [Deployment]() Tags: [api](), [authentication](), [deployment](), [psrt](), [python](), [python-3-14](), [security](), [vulnerability]() ### AI overview Python.org mitigated an authentication bypass in its release management API. The vulnerability could have allowed attackers to alter release and file metadata, including download and verification-material URLs, although audits found no evidence of exploitation or modified artifacts. ### Source excerpt Vulnerability mitigated in python.org with follow-up third-party audit from Trail of Bits ## Python 3.14.6 and 3.13.14 are now available! DevFeed: [Python 3.14.6 and 3.13.14 are now available!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-06-10T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python 3.13](), [releases](), [bug](), [Software]() Tags: [bug](), [community](), [documentation](), [github](), [python](), [python-3-13](), [python-3-14](), [release](), [releases]() ### AI overview Python 3.14.6 and Python 3.13.14 are available as maintenance releases, bringing bug fixes, build improvements, and documentation changes. ### Source excerpt A pair of bug fix releases await your upgrade. ## Python 3.14.5 is out! DevFeed: [Python 3.14.5 is out!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-05-10T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python](), [Compression](), [JIT](), [Processes](), [Android](), [macOS](), [Windows]() Tags: [android](), [compression](), [features](), [jit](), [macos](), [memory](), [processes](), [python](), [python-3-14](), [release](), [releases](), [windows]() ### AI overview Python 3.14.5 is the fifth maintenance release in the Python 3.14 series, with approximately 154 bug fixes, build improvements, and documentation changes. It reverts the incremental garbage collector to the generational collector used in Python 3.13 because of reported production memory pressure. The release also updates Tcl/Tk on macOS and documents major Python 3.14 features, including free-threaded support, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard support, debugging interfaces, an experimental JIT, and Android binaries. ### Source excerpt A special release with a new (old) garbage collector. ## Python 3.14.5 release candidate DevFeed: [Python 3.14.5 release candidate]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-05-04T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [Python 3.14]() Tags: [bug](), [memory](), [python](), [python-3-14](), [release](), [releases]() ### AI overview Python 3.14.5rc1 is the release candidate for the fifth maintenance release of Python 3.14. It includes about 113 bug fixes, build improvements, and documentation changes, and reverts the incremental garbage collector to the generational collector because of reported memory pressure in production environments. ### Source excerpt A special release candidate with a new (old) garbage collector. ## Python 3.15.0a8, 3.14.4 and 3.13.13 are out! DevFeed: [Python 3.15.0a8, 3.14.4 and 3.13.13 are out!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-04-07T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases]() Tags: [api](), [bugs](), [c](), [feature](), [jit](), [linux](), [macos](), [performance](), [production](), [python](), [python-3-13](), [python-3-14](), [release](), [release-schedule](), [releases](), [windows]() ### AI overview Python announces the final planned alpha of Python 3.15 alongside maintenance releases 3.14.4 and 3.13.13. The 3.15 preview highlights planned language, typing, C API, ABI, encoding, profiling, and JIT performance changes, and is not recommended for production. ### Source excerpt A final alpha and two bug fixes are awaiting your upgrade. ## Node.js 22.22.1 (LTS) DevFeed: [Node.js 22.22.1 (LTS)]() Original publisher: [Read original article]() Published: 2026-03-05T14:36:22Z Content type: release Language: en Sources: [Node.js Blog]() Topics: [Node.js](), [JavaScript](), [Benchmark](), [cross-platform](), [Open Source](), [Command-line interface](), [servers](), [Web](), [Script](), [Nix](), [Python 3.14](), [SQLite]() Tags: [benchmark](), [benchmarks](), [command-line](), [cross-platform](), [javascript](), [node-js](), [open-source](), [python](), [python-3-14](), [servers](), [sqlite](), [web](), [windows]() ### AI overview Node.js 22.22.1 (LTS) includes updates to tests, command-line stability, root certificates, documentation, benchmarks, buffer performance, build configuration, Android patches, and Windows-related build checks. ### Source excerpt Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts. ## Node.js 20.20.1 (LTS) DevFeed: [Node.js 20.20.1 (LTS)]() Original publisher: [Read original article]() Published: 2026-03-05T14:22:41Z Content type: release Language: en Sources: [Node.js Blog]() Topics: [Node.js]() Tags: [node-js](), [python](), [python-3-14](), [update]() ### AI overview Node.js 20.20.1 LTS is a release containing build, crypto, assertion, and dependency updates. ### Source excerpt Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts. ## Python 3.14.3 and 3.13.12 are now available! DevFeed: [Python 3.14.3 and 3.13.12 are now available!]() Original publisher: [Read original article]() Author: Thomas Wouters Published: 2026-02-03T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python](), [releases](), [Compression](), [JIT](), [Syntax Highlighting](), [Process]() Tags: [compression](), [jit](), [performance](), [process](), [python](), [python-3-14](), [release](), [releases]() ### AI overview Python 3.14.3 is the third maintenance release in the Python 3.14 series, with around 299 bug fixes, build improvements, and documentation changes since Python 3.14.2. The article also highlights major Python 3.14 features, including free-threaded support, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard support, improved debugging, an experimental JIT in official macOS and Windows binaries, and official Android binary releases. ### Source excerpt Python 3.14.3 is now available! This is third maintenance release of Python 3.14 Python 3.14.3 is the third maintenance release of 3.14, containing around ... ## Python 3.14.2 and 3.13.11 are now available! DevFeed: [Python 3.14.2 and 3.13.11 are now available!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-12-05T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases]() Tags: [changelog](), [python](), [python-3-13](), [python-3-14](), [releases](), [security]() ### AI overview Python 3.14.2 and 3.13.11 are expedited maintenance releases that address regressions and security issues, including denial-of-service fixes in HTTP modules. ### Source excerpt Two more, just three days after the last? Yes! We found some regressions, so here's an expedited pair of releases. They also come with some bonus security fi... ## Python 3.14.1 is now available! DevFeed: [Python 3.14.1 is now available!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-12-02T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [releases](), [Development](), [Documentation]() Tags: [bugfixes](), [build](), [community](), [contributions](), [development](), [documentation](), [maintenance](), [python](), [python-3-14](), [release](), [releases]() ### AI overview Python 3.14.1 is the first maintenance release in the Python 3.14 series. It includes around 558 bug fixes, build improvements, and documentation changes since Python 3.14.0. ### Source excerpt !Two snakes enjoying a pie with 3.14 on the top and π crimping This is first maintenance release of Python 3.14 Python 3.14.1 is the first maintenance release... ## Python 3.14.0 (final) is here! DevFeed: [Python 3.14.0 (final) is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-10-07T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python](), [releases](), [Compression](), [JIT](), [Command-line interface](), [Processes]() Tags: [command-line](), [compression](), [jit](), [macos](), [new-features](), [optimisations](), [performance](), [processes](), [python-3-13](), [python-3-14](), [release](), [releases](), [windows]() ### AI overview Python 3.14.0 is the stable release of Python's newest major version, introducing free-threaded support, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard compression support, improved debugging and error messages, and other language and runtime changes. ### Source excerpt !Two snakes enjoying a pie with 3.14 on the top and π crimping Python 3.14.0 is now available python.org/downloads/release/python-3140/ This is the stable re... ## Python 3.14.0rc3 is go! DevFeed: [Python 3.14.0rc3 is go!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-09-18T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python]() Tags: [bug-fixes](), [production](), [pypi](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview Python 3.14.0rc3 is the final release candidate before the scheduled Python 3.14.0 release. It fixes a bytecode magic-number bug without changing the ABI and introduces or includes major Python 3.14 features such as free-threading support, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard compression support, syntax highlighting, and an external debugger interface. ### Source excerpt It's 🪄 finally 🪄 the final 3.14 release candidate! https://www.python.org/downloads/release/python-3140rc3/ Note: It's another magic release. We fixed anot... ## Python 3.14.0rc2 and 3.13.7 are go! DevFeed: [Python 3.14.0rc2 and 3.13.7 are go!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-08-14T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases]() Tags: [bug](), [maintainers](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview Python 3.14.0rc2 is an expedited penultimate release candidate, issued after a bytecode magic-number bug fix. The post asks third-party maintainers to test and publish Python 3.14 wheels ahead of the scheduled final release. ### Source excerpt Not one but two expedited releases! 🎉 🎉 Python 3.14.0rc2 It's the ~final~ 🪄 penultimate 🪄 3.14 release candidate! https://www.python.org/downloads/releas... ## Python 3.14 release candidate 1 is go! DevFeed: [Python 3.14 release candidate 1 is go!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-07-22T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python](), [Compression](), [debug](), [Syntax Highlighting]() Tags: [2025](), [bug-fixes](), [compression](), [debugger](), [maintainers](), [production](), [pypi](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview The article announces Python 3.14.0rc1, the first release candidate and penultimate preview before the planned final release on October 7, 2025. It asks maintainers of third-party projects to test compatibility and publish Python 3.14 wheels on PyPI, while warning that the preview is not recommended for production use. It also highlights major changes including officially supported free-threaded Python, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard compression support, improved syntax highlighting, an external debugger interface, faster UUID generation, and C API improvements. ### Source excerpt It's the first 3.14 release candidate! https://www.python.org/downloads/release/python-3140rc1/ This is the first release candidate of Python 3.14 This relea... ## Python 3.14.0 beta 4 is here! DevFeed: [Python 3.14.0 beta 4 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-07-08T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases](), [Syntax Highlighting]() Tags: [api](), [bug](), [building](), [c](), [compression](), [debugger](), [development](), [performance](), [production](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview Python 3.14.0 beta 4 is the final planned beta preview. The release asks third-party maintainers to test compatibility and outlines major 3.14 features, while cautioning against production use. ### Source excerpt It's the final 3.14 beta! https://www.python.org/downloads/release/python-3140b4/ This is a beta preview of Python 3.14 Python 3.14 is still in development. ... ## The ITTAGE indirect branch predictor DevFeed: [The ITTAGE indirect branch predictor]() Original publisher: [Read original article]() Author: Nelson Elhage Published: 2025-07-04T21:30:00Z Content type: article Language: en Sources: [Nelson Elhage]() Topics: [cpu](), [Python](), [Algorithm](), [Python 3.14]() Tags: [algorithm](), [bytecode](), [cpu](), [performance](), [python](), [python-3-14]() ### AI overview An explanatory article about ITTAGE indirect branch prediction and how modern CPUs predict bytecode-dispatch jumps. It connects the topic to Python 3.14's tail-calling interpreter and describes ITTAGE as a TAGE variant that predicts indirect jump destinations using program-counter history and multiple history-length tables. ### Source excerpt While investigating the performance of the new Python 3.14 tail-calling interpreter, I learned (via this very informative comment from Sam Gross) new (to me) piece of performance trivia: Modern CPUs mostly no longer struggle to predict the bytecode-dispatch indirect jump inside a "conventional" bytecode interpreter loop. In steady-state, assuming the bytecode itself is reasonable stable, modern CPUs achieve very high accuracy predicting the dispatch, even for "vanilla" while / switch-style interpreter loops1! ## Python 3.14.0 beta 3 is here! DevFeed: [Python 3.14.0 beta 3 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-06-17T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python 3.14](), [Python](), [releases](), [Testing]() Tags: [development](), [pre-release](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview The article announces Python 3.14.0b3, the third planned beta release of Python 3.14. It describes the beta phase as an opportunity to test new features and bug fixes, highlights changes such as free-threaded Python support, deferred annotation evaluation, template string literals, multiple interpreters, Zstandard support, and an external debugger interface, and advises against production use before the release candidate. ### Source excerpt It's 3.14 beta 3! https://www.python.org/downloads/release/python-3140b3/ This is a beta preview of Python 3.14 Python 3.14 is still in development. This rel... ## Python 3.14.0 beta 2 is here! DevFeed: [Python 3.14.0 beta 2 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2025-05-26T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases](), [Syntax Highlighting]() Tags: [bug](), [c](), [compression](), [debugger](), [production](), [python](), [python-3-14](), [release](), [releases](), [testing]() ### AI overview Python 3.14.0 beta 2 is a preview release intended for community testing before the final 3.14 release. It highlights new language, library, debugging, performance, API, and command-line features, while cautioning against production use. ### Source excerpt Here's the second 3.14 beta. https://www.python.org/downloads/release/python-3140b2/ This is a beta preview of Python 3.14 Python 3.14 is still in developmen... ## Finally, You Can Drop the Parentheses in Python 3.14 DevFeed: [Finally, You Can Drop the Parentheses in Python 3.14]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-05-25T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Python 3.14](), [Exception](), [Python]() Tags: [exception](), [exception-handling](), [python](), [python-3-14]() ### AI overview Python 3.14 introduces a cleaner syntax for catching multiple exceptions by allowing the parentheses to be omitted, as specified in PEP 758. ### Source excerpt Python 3.14 simplifies exception handling with PEP 758, letting you drop parentheses when catching multiple exceptions, cleaner, consistent, and backward-safe. ## CPython Performance Evolution: From Specialization to JIT DevFeed: [CPython Performance Evolution: From Specialization to JIT]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-05-24T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [JIT]() Tags: [3](), [adaptive](), [bytecode](), [evolution](), [jit](), [performance](), [python](), [python-3-14]() ### AI overview This article explains CPython's performance evolution from adaptive bytecode in version 3.11 to JIT execution in version 3.14, improving performance without requiring an interpreter rewrite. ### Source excerpt Explore how CPython evolved from adaptive bytecode in 3.11 to JIT execution in 3.14, boosting performance without rewriting the interpreter. ## Python 3.14 Adds compression.zstd for Zstandard Support DevFeed: [Python 3.14 Adds compression.zstd for Zstandard Support]() Original publisher: [Read original article]() Author: Abhimanyu Saharan Published: 2025-05-22T00:00:00Z Content type: article Language: en Sources: [Abhimanyu Saharan]() Topics: [Python 3.14](), [Compression](), [Python]() Tags: [compression](), [module](), [python](), [python-3-14]() ### AI overview Python 3.14 introduces a native compression.zstd module for Zstandard support, bringing high-performance zstd compression and existing standard-library compressors together under one namespace. ### Source excerpt Python 3.14 adds a native Zstandard module under compression.zstd, unifying high-performance zstd support and existing stdlib compressors under one namespace. 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