# Python Insider The official blog of the Python core development team. 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 3.15.0 candidate 2 is here! DevFeed: [Python 3.15.0 candidate 2 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-09-01T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [Linux](), [macOS]() Tags: [bug](), [performance](), [python](), [release](), [releases]() ### AI overview Python 3.15.0rc2 is the final planned release candidate before the scheduled 3.15.0 final release. It includes bug fixes, build and documentation changes, and asks maintainers to test and publish compatible wheels. ### Source excerpt Last chance to test before the big day! ## RISC-V is now officially supported by CPython! DevFeed: [RISC-V is now officially supported by CPython!]() Original publisher: [Read original article]() Author: Stan Ulbrych Published: 2026-08-24T00:00:00Z Content type: news Language: en Sources: [Python Insider]() Topics: [RISC-V](), [Python](), [Hardware](), [ci]() Tags: [ci](), [community](), [contributed](), [contributors](), [hardware](), [platform](), [python](), [testing]() ### AI overview CPython now officially supports RISC-V as a tier 3 platform. The article describes the community contributions, real-hardware testing, and build support that enabled the milestone, as well as plans to integrate RISC-V into CPython's CI and eventually pursue tier 2 support. ### Source excerpt I'm happy to announce that RISC-V platforms are now officially supported by CPython. 🎉 🚀 ## The Python documentation is now available in Russian! DevFeed: [The Python documentation is now available in Russian!]() Original publisher: [Read original article]() Author: Stan Ulbrych Published: 2026-08-22T00:00:00Z Content type: news Language: en Sources: [Python Insider]() Topics: [Python](), [Accessibility]() Tags: [blog](), [community](), [contributors](), [developer](), [docs](), [documentation](), [guide](), [python]() ### AI overview The Python documentation is now available in Russian, thanks to community contributors. The article also invites volunteers to help translate and maintain documentation in other languages. ### Source excerpt The official blog of the Python core development team. ## Announcing the Packaging Council Election Candidates for 2026! DevFeed: [Announcing the Packaging Council Election Candidates for 2026!]() Original publisher: [Read original article]() Author: Pradyun Gedam Published: 2026-08-13T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [Python]() Tags: [blog](), [python]() ### AI overview The article announces 17 nominees for the inaugural Python Packaging Council election, which will fill five seats. It explains the two-year and one-year cohort terms, election timeline, voter affirmation requirement, and ballot delivery process. ### Source excerpt Announcing the 17 nominees for the inaugural Python Packaging Council election, and how to vote in the election. ## Python 3.12.14, 3.11.16 and 3.10.21 are now available! DevFeed: [Python 3.12.14, 3.11.16 and 3.10.21 are now available!]() Original publisher: [Read original article]() Author: Thomas Wouters Published: 2026-08-12T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [releases]() Tags: [http](), [python](), [releases](), [security](), [vulnerability]() ### AI overview Python 3.12.14, 3.11.16, and 3.10.21 are source-only security releases. They address issues including URL handling, archive extraction, HTTP header injection, XML parsing, cookies, decompression, and Windows-specific behavior. ### Source excerpt [Python Releases Eclipse Your Security!](https://discuss.python.org/t/python-3-12-14-3-11-16-and-3-10-21-are-now-available/108537) New security releases for 3.10, 3.11 and 3.12 are now available. ## 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. ## Python 3.15.0 candidate 1 is here! DevFeed: [Python 3.15.0 candidate 1 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-08-04T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [Maintainers](), [Compiler](), [JIT](), [Linux](), [macOS](), [Windows]() Tags: [documentation](), [jit](), [linux](), [macos](), [maintainers](), [performance](), [python](), [release](), [releases](), [windows]() ### AI overview Python 3.15.0rc1 is the first release candidate in the Python 3.15 series. The article asks third-party maintainers to test the release, publish compatible wheels, report issues, and complete documentation before the final release. ### Source excerpt Get those wheels rolling! ## Get Ready: 2026 Python Packaging Council Nominations Opening Soon! DevFeed: [Get Ready: 2026 Python Packaging Council Nominations Opening Soon!]() Original publisher: [Read original article]() Author: Pradyun Gedam Published: 2026-07-23T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [Python](), [interoperability](), [Maintainers]() Tags: [community](), [interoperability](), [maintainers](), [python](), [user-experience]() ### AI overview The Python Packaging Council's inaugural election opens for nominations on July 28, 2026, and closes on August 11. The council will guide interoperability specifications for building, distributing, and installing Python packages, while coordinating maintainers, the Python core team, and the wider community. ### Source excerpt The inaugural Python Packaging Council election nomination period opens on Tuesday, July 28th, 2:00 pm UTC and closes on Tuesday, August 11th, 2:00 pm UTC. ## Python 3.15.0 beta 4 is here! DevFeed: [Python 3.15.0 beta 4 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-07-18T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [Compiler](), [observability]() Tags: [jit](), [maintainers](), [observability](), [performance](), [python](), [release](), [releases](), [testing]() ### AI overview Python 3.15.0b4 is the final planned beta release, bringing bug fixes, build improvements, documentation changes, new language and packaging features, improved observability, and a significantly upgraded JIT compiler. The article asks maintainers to test the beta and report issues before the release candidate phase. ### Source excerpt The final 3.15 beta is out! ## Packaging Council Inaugural Election Dates DevFeed: [Packaging Council Inaugural Election Dates]() Original publisher: [Read original article]() Author: Pradyun Gedam Published: 2026-06-28T00:00:00Z Content type: news Language: en Sources: [Python Insider]() Topics: [Python](), [interoperability](), [Maintainers](), [Processes]() Tags: [2026](), [community](), [governance](), [interoperability](), [maintainers](), [python]() ### AI overview The Python Packaging Council is being established under PEP 772 to oversee packaging specifications and coordinate Python packaging efforts. Its inaugural five-member election will take place alongside the 2026 Python Software Foundation Board election, with staggered terms for elected members. ### Source excerpt A new Python Packaging Council (PPC) is being established, with their election of the inaugural PPC will be held in parallel to the 2026 PSF Board election. ## 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 3.15.0 beta 3 is here! DevFeed: [Python 3.15.0 beta 3 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-06-23T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [Compiler](), [observability]() Tags: [bug](), [jit](), [linux](), [macos](), [maintainers](), [observability](), [python](), [releases](), [testing](), [windows]() ### AI overview Python 3.15.0 beta 3 is the third of four planned beta releases, with bug fixes, build improvements, documentation changes, and contributions from 86 contributors. The preview introduces or advances features including lazy imports, profiling tools, frame pointers for observability, UTF-8 by default, package startup configuration, and an upgraded JIT compiler. ### Source excerpt The penultimate 3.15 beta is out! ## 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 3.15.0 beta 2 is here! DevFeed: [Python 3.15.0 beta 2 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-06-02T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [JIT](), [observability](), [Compiler]() Tags: [jit](), [maintainers](), [observability](), [performance](), [python](), [release](), [releases](), [testing]() ### AI overview Python 3.15.0b2 is the second of four planned beta releases. The preview includes new language and type-system features, profiling and observability improvements, a significantly upgraded JIT compiler, improved error messages, and updated Windows binaries. The article encourages maintainers to test the beta and report issues, while recommending that production releases wait until the first release candidate. ### Source excerpt The antepenultimate 3.15 beta is out! ## 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 3.15.0 beta 1 is here! DevFeed: [Python 3.15.0 beta 1 is here!]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-05-07T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [Linux](), [observability](), [macOS](), [Windows](), [configuration]() Tags: [jit](), [maintainers](), [observability](), [performance](), [python](), [release](), [releases](), [testing]() ### AI overview Python 3.15.0 beta 1 is the first beta release and marks the feature freeze. The article highlights new language and type-system features, profiling and observability improvements, UTF-8 as the default encoding, C API and stable ABI changes, JIT performance gains, and updated Windows binaries. It also asks maintainers to test the beta and report issues, while recommending that production releases wait for the first release candidate. ### Source excerpt The propreantepenultimate 3.15 beta is out! ## 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. ## Rust for CPython Progress Update April 2026 DevFeed: [Rust for CPython Progress Update April 2026]() Original publisher: [Read original article]() Author: Emma Smith Published: 2026-04-08T00:00:00Z Content type: news Language: en Sources: [Python Insider]() Topics: [Rust](), [Python](), [API](), [ci](), [Code]() Tags: [api](), [ci](), [code](), [community](), [discord](), [rust](), [update]() ### AI overview The Rust for CPython project reports progress toward a PEP for introducing Rust into CPython. Its reference implementation now builds successfully across all tested CPython CI platforms, while the team plans internal Rust API work, a Rust-based extension module, and a PEP targeting Python 3.16. ### Source excerpt Rust for CPython project status update April 2026 ## 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. ## Python 3.15's JIT is now back on track DevFeed: [Python 3.15's JIT is now back on track]() Original publisher: [Read original article]() Author: Ken Jin Published: 2026-03-23T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [JIT](), [Python](), [Linux](), [macOS]() Tags: [article](), [blog](), [community](), [contributors](), [jit](), [linux](), [macos](), [performance](), [python]() ### AI overview Python's CPython JIT has met its performance goals ahead of schedule for macOS AArch64 and x86_64 Linux. The article discusses preliminary Python 3.15 alpha results, the JIT's recovery from earlier slowdowns, and the community-led work and contributors behind its progress. ### Source excerpt A look at Python's JIT in 3.15a7. ## Python 3.15.0 alpha 7 DevFeed: [Python 3.15.0 alpha 7]() Original publisher: [Read original article]() Author: Hugo van Kemenade Published: 2026-03-10T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [JIT](), [releases](), [Compiler](), [Linux](), [macOS]() Tags: [jit](), [linux](), [macos](), [python](), [release](), [releases]() ### AI overview Python 3.15.0a7 is the seventh of eight planned alpha releases and provides an early developer preview of the in-development Python 3.15 series. It introduces or advances features including explicit lazy imports, a statistical sampling profiler, unpacking in comprehensions, UTF-8 as the default encoding, improved typing support, a new C API for bytes objects, upgraded JIT compilation, and improved error messages. ### Source excerpt The penultimate 3.15 alpha is out! ## CPython: 36 Years of Source Code DevFeed: [CPython: 36 Years of Source Code]() Original publisher: [Read original article]() Author: Stan Ulbrych Published: 2026-03-08T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [Code](), [dataset]() Tags: [analysis](), [code](), [git](), [history](), [tool]() ### AI overview An analysis of CPython source-code growth over 36 years, based on a dataset of 1,392 commits and line-counting with cloc. ### Source excerpt An analysis of the growth of CPython's codebase from its first commits to the present day ## Python 3.12.13, 3.11.15 and 3.10.20 are now available! DevFeed: [Python 3.12.13, 3.11.15 and 3.10.20 are now available!]() Original publisher: [Read original article]() Author: Thomas Wouters Published: 2026-03-03T00:00:00Z Content type: release Language: en Sources: [Python Insider]() Topics: [Python](), [releases](), [Security](), [Python 3.10](), [XML](), [Parser](), [HTML](), [SSL]() Tags: [html](), [http](), [memory](), [memory-safety](), [python](), [python-3-10](), [releases](), [security](), [ssl]() ### AI overview Python 3.12.13, 3.11.15, and 3.10.20 are security-only source releases addressing vulnerabilities and hardening email, HTTP, XML, HTML, denial-of-service, and SSL handling. ### Source excerpt [Python Releases For Your Security!](https://discuss.python.org/t/python-3-12-13-3-11-15-and-3-10-20-are-now-available/106363) New security releases for 3.10, 3.11 and 3.12 are now available. ## The Python Insider Blog Has Moved! DevFeed: [The Python Insider Blog Has Moved!]() Original publisher: [Read original article]() Author: Jacob Coffee Published: 2026-03-03T00:00:00Z Content type: article Language: en Sources: [Python Insider]() Topics: [Python](), [Git](), [Astro](), [RSS Feed](), [Markdown](), [Pull Request](), [YAML](), [Dark Mode](), [Open Graph protocol](), [Content Management System]() Tags: [astro](), [blog](), [community](), [content](), [dark-mode](), [development](), [git](), [html](), [markdown](), [pull-request](), [python](), [rss]() ### AI overview The Python Insider blog has moved from Blogger to blog.python.org, using a Git repository and Markdown-based contributions. The migration includes all 307 previous posts, automatic redirects, and continued RSS compatibility. The new Astro-based static site adds filtering, author pages, search, dark mode, and automatically generated Open Graph images. ### Source excerpt Python Insider now lives at blog.python.org, backed by a Git repository. All 307 posts from the Blogger era have been migrated, and old URLs redirect automatically. [Next page]()