TL;DR

Astro introduces significant performance and scalability improvements for large content collections and enhanced security controls for CSP.

New

• Content Layer Optimizations: Added deferRender to glob() to reduce memory usage during builds and an experimental chunked storage option to prevent large data-store files from hitting platform limits.
• Granular CSP Control: Added support for specific CSP (Content Security Policy) directives like script-src-elem and style-src-attr via a new kind option.

Fixes Worth Knowing

• Dev Experience: Fixed an immediate full-page reload on the first browser visit and resolved issues where astro dev --force failed to replace running servers.
• Hydration: Client islands now recover from transient import failures during development.
• Routing: Fixed incorrect routing for encoded request paths when using domain-based i18n.
• MDX: Fixed custom pre components not applying to syntax-highlighted blocks when using the Sätteri processor.

TL;DR

Astro sites deployed to Netlify now correctly handle periods and other special characters in image remote patterns, preventing unexpected matching of image sources.

Fixes Worth Knowing

Image remote patterns (defining allowed image sources) now function as expected with special characters, ensuring only explicitly allowed domains and paths are matched for image optimization via Netlify’s CDN (Content Delivery Network).

TL;DR

Astro’s TypeScript compatibility is improved: astro check now provides a helpful error message instead of crashing when used with the latest TypeScript compiler (TypeScript 7).

Fixes Worth Knowing

astro check no longer crashes with TypeScript 7. It now displays a clear error message guiding users to a tracking issue for updates on full compatibility (static analysis tool).

TL;DR

Astro Cloudflare adapter now correctly handles custom image services and build-time environment variables, and fixes issues with preview opening and React island hydration, improving build reliability and developer experience.

Fixes Worth Knowing

• astro preview --open now reliably opens a browser window when using the Cloudflare adapter.
• Custom image services (for image optimization) are now correctly applied, even when registered through integrations.
• Build-time environment variables (astro:env) are now correctly loaded and available during the build process.
• React "Invalid hook call" errors in islands are resolved by prebundling necessary modules.

TL;DR

Sätteri Markdown (Astro’s Markdown processor) now correctly applies custom components to syntax-highlighted code blocks within MDX files.

Fixes Worth Knowing

Custom pre components now function as expected with syntax highlighting when using Sätteri Markdown and MDX. This ensures consistent styling of code blocks throughout your Astro site.