Add blog post and hero image for Files v4.0.89release

Author: yaira2

src/routes/blog/posts/v4-0-9/+page.md

@@ -0,0 +1,25 @@
+---
+title: Announcing Files Preview v4.0.9
+description: Announcing Files Preview v4.0.9 for users of the preview version.
+thumbnail: /blog-resources/v4-0-9/Hero.webp
+date: 9/16/2025
+author: files-community
+---
+
+Today we are releasing **Files Preview v4.0.9** 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 v4.0.9
+
+Fixed an issue with automatic updates. If you're having issues updating to v4.0.9, you can update manually by downloading the sideload installer or by checking for updates in the Microsoft Store.
+
+## 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/)