✨ Major Changes

• #16966 6650ec2 Thanks @Princesseuh! - Makes Sätteri the default Markdown processor

  Astro now renders .md files with satteri() from @astrojs/markdown-satteri, its native Markdown pipeline, instead of the remark/rehype pipeline. @astrojs/markdown-remark is no longer installed by default.

  To keep using the remark/rehype pipeline, install @astrojs/markdown-remark and set it as your processor:

  import { defineConfig } from 'astro/config';
  import { unified } from '@astrojs/markdown-remark';
  
  export default defineConfig({
    markdown: {
      processor: unified(),
    },
  });

  The deprecated markdown.remarkPlugins, markdown.rehypePlugins, and markdown.remarkRehype options still work, but now require @astrojs/markdown-remark to be used.

🐞 Patch Changes

• #17078 04547ec Thanks @astrobot-houston! - Fixes a spurious Astro.request.headers warning on prerendered pages when security.allowedDomains is configured. The internal allowedDomains header validation now skips prerendered routes, since they use synthetic requests with no real headers.