Astral Blog

10 stories

Astral BlogLanguagestar-codec: a fast and secure tar parser for the Rust ecosystem We're releasing tar-codec, a new tar encoding/decoding library for Rust. tar-codec is already the default in uv, and improves uv's tar handling performance by over 2x while also improving our posture…

10.27

Astral BlogLanguagesBringing uv and ty together Experimental uv-ty integration enables first-class support for Python scripts on the CLI and in the editor, and a unified uv check command.

10.13

Astral BlogLanguagesPython 3.15 Python 3.15 is out today along with updates for Ruff, uv, and ty.

10.09

Astral Blog

Astral BlogLanguagesOur endorsements for Python’s first Packaging Council Astral is proud to endorse William Woodruff, Pradyun Gedam, Ralf Gommers, and Donald Stufft for the inaugural Python Packaging Council.

09.04

Astral BlogLanguagesRuff v0.16.0 The next stable version of Ruff is out now.

07.23

Astral Blog

Astral BlogLanguagesVulnerability and malware checks in uv Find vulnerabilities in your Python dependencies with uv audit and prevent installation of known malware with uv's experimental malware detection.

06.08

Astral Blog

Astral BlogLanguagesOpen source security at Astral Insights and guidance from our engineering team on how Astral secures its tools.

04.08

Astral Blog

Astral BlogLanguagesAstral to join OpenAI Astral has entered into an agreement to join OpenAI as part of the Codex team.

03.19

Astral BlogLanguagesRuff v0.15.0 The next stable version of Ruff is out now.

02.03

Astral Blog

Astral BlogLanguagesty: An extremely fast Python type checker and LSP ty is an extremely fast Python type checker and language server, written in Rust, and designed as an alternative to mypy, Pyright, and Pylance.

2025.12.16

The name is the button.

An agent writes the code now, and a human thumb hovers over Accept all a hundred times a day. The honest question of this decade is what, exactly, you just accepted. So I read the diff.

Eight years as a backend engineer in Stockholm, back in Tokyo since 2023, and I still ship something small most nights, usually badly. My one rule: the only real review of a model is the thing you built with it. That is why there is no leaderboard on this site.

Around a hundred and forty sources come through — the labs' own posts, the papers, the tools, the runtimes and languages nobody is watching yet, the chip under the demo, and the newsletters people actually forward. What is moving gets counted so the week reads at a glance, and every few days I explain one mechanism in plain words.

A story here is a headline, a short excerpt, one image and the link to whoever wrote it. We never reproduce the post; the images belong to their authors. A post written in Japanese appears in Japanese, exactly as it was published, and the link goes to the original.

— Yuki Halvorsen, Tokyo