# Astro 4.2

DevFeed: [Astro 4.2](<https://devfeed.tech/articles/astro-4-2-3201.md>)

Original publisher: [Read original article](<https://astro.build/blog/astro-420/>)

Author: Erika; Emanuele Stoppa; Matthew Phillips; Nate Moore; Bjorn Lu

Published: 2024-01-18T00:00:00Z

Content type: release

Language: en

Sources: [The Astro Blog](<https://devfeed.tech/sources/the-astro-blog.md>)

Topics: [releases](<https://devfeed.tech/topics/releases.md>), [Web Development](<https://devfeed.tech/topics/web-development.md>), [User interface design](<https://devfeed.tech/topics/ui-design.md>)

Tags: [accessibility](<https://devfeed.tech/tags/accessibility.md>), [api](<https://devfeed.tech/tags/api.md>), [astro](<https://devfeed.tech/tags/astro.md>), [chromium](<https://devfeed.tech/tags/chromium.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [optimization](<https://devfeed.tech/tags/optimization.md>), [release](<https://devfeed.tech/tags/release.md>), [routing](<https://devfeed.tech/tags/routing.md>)

## AI overview

Astro 4.2 introduces experimental client-side prerendering via the Speculation Rules API and revised priority handling for injected routes. It also includes accessibility improvements, Markdown image-optimization customization, bug fixes, and other enhancements.

## Source excerpt

Astro 4.2 is out now! This release includes two new experimental features to try out, improvements to accessibility rules, and more.