---
title: "Astro 6.4"
url: https://daily.dev/posts/astro-6-4-xalywz5dk
source_url: https://astro.build/blog/astro-640
type: article
source: "Astro"
published: 2026-05-28T16:16:58.123Z
updated: 2026-05-28T16:40:37.836Z
tags: ["rust", "cloudflare", "markdown", "astro"]
reading_time: 4
upvotes: 59
comments: 3
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.

# Astro 6.4

**[Astro](https://daily.dev/sources/astro_source)** · 4 min read · 59 upvotes · 3 comments

## Summary

Astro 6.4 ships three notable additions. First, a new pluggable `markdown.processor` API lets developers swap out the default unified-based Markdown pipeline entirely, while existing remark/rehype plugins continue to work (though top-level markdown config options are now deprecated in favor of the new API). Second, a new `@astrojs/markdown-satteri` package introduces a Rust-based Markdown processor called Sätteri that is significantly faster — cutting over a minute off build times for large docs sites like Astro's own and Cloudflare's. Sätteri does not support remark/rehype plugins but has its own plugin system. Third, the `@astrojs/cloudflare` adapter now ships `cf()` helpers that simplify wiring up experimental advanced routing with Cloudflare-specific features like KV bindings, ASSETS binding, and client address handling.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://astro.build/blog/astro-640>

## Community discussion

Top comments from developers on daily.dev.

**@baptistecrouzet** · 0 upvotes

> Always great updates, thanks !

## Similar posts on daily.dev

- [Astro 7.0](https://daily.dev/posts/astro-7-0-2arekjquc) · Astro · 202 upvotes · 13 comments

---

Tags: [#rust](https://daily.dev/tags/rust), [#cloudflare](https://daily.dev/tags/cloudflare), [#markdown](https://daily.dev/tags/markdown), [#astro](https://daily.dev/tags/astro)

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