Add blog post for Files Preview v4.0.6 release

Author: yaira2

src/routes/blog/posts/v4-0-6/+page.md

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+---
+title: Announcing Files Preview v4.0.6
+description: Announcing Files Preview v4.0.6 for users of the preview version.
+thumbnail: /blog-resources/v4-0-6/Hero.webp
+date: 9/14/2025
+author: files-community
+---
+
+Today we are releasing **Files Preview v4.0.6** for users of the preview version.
+
+An update icon should be displayed in the top right corner of the app for existing users, while new users can get started from our [download](/download/) page. Additionally, you can help support the project by purchasing Files on the [Microsoft Store](ms-windows-store://pdp/?ProductId=9NSQD9PKV3SS&cid=FilesWebsite) or by sponsoring us on [GitHub](https://github.com/sponsors/yaira2). Your support is greatly appreciated but entirely optional.
+
+## What's new in Files v4.0.6
+
+- Moved auto update code to a separate thread to reduce impact on startup.
+
+## Conclusion
+
+As always, we appreciate your feedback and suggestions on how to improve Files. You can reach us on [Discord](https://discord.gg/files) and on [GitHub](https://github.com/files-community/Files/).
+
+Thank you for using Files! 😊
+
+---
+
+Download Files Preview from the [Microsoft Store](ms-windows-store://pdp/?ProductId=9NSQD9PKV3SS&cid=FilesWebsite) | Sponsor us on [GitHub](https://github.com/sponsors/yaira2/)