Astro 7.0.3

Release Date: June 25, 2026

Astro 7.0.3 is live — the latest patch for the Astro 7.0 major release that landed June 22 with a Rust-powered rewrite, Vite 8, and dramatically faster builds across the board.

Rust Rewrite — Performance Punch

Astro 7.0 replaces the Go-based compiler with a Rust implementation, delivering build-time improvements of 15–61% depending on project size. The Markdown and MDX processors were also rewritten in Rust, making content-heavy sites noticeably faster to build.

Vite 8 Under the Hood

Astro 7 moves to Vite 8 and the Rolldown bundler — a Rust-powered replacement for both esbuild and Rollup. Dev server starts are snappier, HMR updates feel instant, and production builds complete in a fraction of the time compared to Astro 6.

Advanced Routing Stable

Previously experimental, Advanced Routing is now enabled by default in Astro 7. You get full control over how requests flow through your application, with first-class support for frameworks like Hono. Route caching, previously flaky, now works reliably in production.

Structured Logging and Background Dev Server

Astro 7 introduces structured JSON logging, making it easier to pipe logs into observability tools. The new background dev server keeps your dev environment running even when you close the terminal — no more cold starts after a break.

Patch Fixes in 7.0.3

Fixes a bug where errors thrown inside getStaticPaths() could crash the build
Resolves HMR issues for action files during development
Fixes React component hydration edge cases
Improves error messages for common misconfigurations

Breaking Changes

The transition event APIs — TRANSITION_BEFORE_PREPARATION, TRANSITION_AFTER_PREPARATION, and TRANSITION_BEFORE_SWAP — have been removed. Projects using these will need to migrate to the new API before upgrading.