- [#6630](https://github.com/withastro/astro/pull/6630) [`cfcf2e2ff`](https://github.com/withastro/astro/commit/cfcf2e2ffdaa68ace5c84329c05b83559a29d638) Thanks [@bholmesdev](https://github.com/bholmesdev)! - Support automatic image optimization for Markdoc images when using `experimental.assets`. You can [follow our Assets guide](https://docs.astro.build/en/guides/assets/#enabling-assets-in-your-project) to enable this feature in your project. Then, start using relative or aliased image sources in your Markdoc files for automatic optimization:
```md
<!--Relative paths-->
<!--Or configured aliases-->
- [#6588](https://github.com/withastro/astro/pull/6588) [`f42f47dc6`](https://github.com/withastro/astro/commit/f42f47dc6a91cdb6534dab0ecbf9e8e85f00ba40) Thanks [@bholmesdev](https://github.com/bholmesdev)! - Allow access to content collection entry information (including parsed frontmatter and the entry slug) from your Markdoc using the `$entry` variable:
- [#6209](https://github.com/withastro/astro/pull/6209) [`fec583909`](https://github.com/withastro/astro/commit/fec583909ab62829dc0c1600e2387979365f2b94) Thanks [@bholmesdev](https://github.com/bholmesdev)! - Introduce the (experimental) `@astrojs/markdoc` integration. This unlocks Markdoc inside your Content Collections, bringing support for Astro and UI components in your content. This also improves Astro core internals to make Content Collections extensible to more file types in the future.
You can install this integration using the `astro add` command:
```
astro add markdoc
```
[Read the `@astrojs/markdoc` documentation](https://docs.astro.build/en/guides/integrations-guide/markdoc/) for usage instructions, and browse the [new `with-markdoc` starter](https://astro.new/with-markdoc) to try for yourself.
