Blog post: deprecation of embed API v2

Ref readthedocs/readthedocs.org#10677

content/posts/embed-api-v2-deprecated.md

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+title: Deprecation and removal of embed API v2
+date: November 21, 2024
+description: Announcing the deprecation and removal of embed API v2.
+category: Changelog
+tags: api, deprecation
+authors: Santos Gallegos
+status: published
+image: /images/deprecated-embed-api-v2.jpg
+image_credit: Photo by <a href="https://unsplash.com/@jplenio?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Johannes Plenio</a> on <a href="https://unsplash.com/photos/brown-boat-near-dock-qkfxBc2NQ18?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash">Unsplash</a>
+
+We are announcing the deprecation and removal of embed API v2.
+Our old API has been replaced by [embed API v3](https://docs.readthedocs.io/en/stable/api/v3.html#embed),
+which offers the same features, and it works for all types of projects, not just Sphinx.
+
+If you are using our [sphinx-hoverxref](https://sphinx-hoverxref.readthedocs.io/en/stable/) extension,
+please update to the latest version to keep the extension working.
+
+Deprecation timeline
+--------------------
+
+- **Monday, December 9, 2024**: Temporarily disable embed API v2 for all users for 12 hours, from 00:01 PST to 11:59 PST.
+- **Monday, January 13, 2025**: Temporarily disable embed API v2 for all users for 24 hours, from 00:01 PST to 23:59 PST.
+- **Monday, January 20, 2025**: Permanently remove embed API v2 permanently.