Microsoft Windows 10 build 16299 ISO and UUP files are now are now available for download. The latest Insider build for Fast Ring members brings fixes and improvements.
The new the new Fall Creator Update Insider preview build 16299 has fixed an issue where using the Automatic File Download notification to block an app from downloading files wasn’t working for UWP apps.
In addition, there is also a fix for an issue resulting in Windows Defender potentially downloading files selected to be online-only after using the file picker dialog and viewing their thumbnails.
You can download unofficial Insider ISO images as well as UUP files from the following link.