astro/.changeset/angry-pots-boil.md

astro	@astrojs/mdx	@astrojs/markdown-remark
minor	minor	minor

Introduce a smartypants flag to opt-out of Astro's default SmartyPants plugin.

{
  markdown: {
    smartypants: false,
  }
}

Migration

You may have disabled Astro's built-in plugins (GitHub-Flavored Markdown and Smartypants) with the extendDefaultPlugins option. This has now been split into 2 flags to disable each plugin individually:

• markdown.gfm to disable GitHub-Flavored Markdown
• markdown.smartypants to disable SmartyPants

// astro.config.mjs
import { defineConfig } from 'astro/config';

export default defineConfig({
  markdown: {
-   extendDefaultPlugins: false,
+   smartypants: false,
+   gfm: false,
  }
});