---
title: "Ruff v0.8.0"
url: https://daily.dev/posts/ruff-v0-8-0-ddojmo0fs
source_url: https://astral.sh/blog/ruff-v0.8.0
type: article
source: "Astral"
published: 2026-03-31T12:27:07.640Z
updated: 2026-03-31T12:32:21.648Z
tags: ["python", "rust"]
reading_time: 8
upvotes: 0
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Ruff v0.8.0

**[Astral](https://daily.dev/sources/astral-sh)** · 8 min read · 0 upvotes · 0 comments

## Summary

Ruff v0.8.0 is released with several notable changes. The default target Python version is bumped from 3.8 to 3.9, reflecting Python 3.8's end-of-life status. This may cause formatting and linting behavior changes for users who haven't explicitly set a target version. The release also stabilizes 13 previously preview-only rules (including FastAPI-specific rules and several RUF/UP rules), renames flake8-type-checking error codes from TCH to TC, removes six deprecated rules (ANN101, ANN102, PT004, PT005, UP027, E999), updates Unicode width calculations, and changes the standalone installer's default install directory from ~/.cargo/bin to ~/.local/bin.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://astral.sh/blog/ruff-v0.8.0>

---

Tags: [#python](https://daily.dev/tags/python), [#rust](https://daily.dev/tags/rust)

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