Microsoft released a new Windows Insider build just a moment ago that brings PCs running on the Fast Ring to Windows 10 Build 14915.
The new version fixes a couple of issues such as not being able to shut down the PC using Start > Shutdown, changing the update Ring, or various crashes that users experienced when using the Settings application.
Probably the biggest change of them all is the improvement of Delivery Optimization for Windows Insiders.
Delivery Optimization is a new feature for Windows 10, introduced with the November 2015 update, that uses peer to peer technology to download and distribute Windows updates and app updates.
So, if your PC requests an update, it may check PCs in the same computer network first or even on the Internet, and download the updates or part of them from those PCs instead of Microsoft.
Consequently, it means that updates will also be uploaded to other PCs requesting them.
Microsoft notes that it has seen a 30% to 50% reduction in bandwidth usage in computer networks if multiple PCs are running Windows 10.
The new Delivery Optimization feature that Microsoft released today is enabled by default.
The feature works similar to how Delivery Optimization works on regular versions of Windows 10, but includes Insider builds among other things that get delivered.
Starting today, Windows Insiders that have Delivery Optimization enabled will be able to download new Insider Preview builds, OS updates, and app updates from other PCs on their local network as well as from other PCs on the Internet.
This appears to be the only difference to how the system worked before. If you check previous versions of Windows 10 on the Insider channel, you will notice that Delivery Optimization is enabled there as well.
Rather than downloading an entire file from one machine, Delivery Optimization breaks the download into small pieces and uses what is assessed as the fastest, most reliable source for each piece of the file. Delivery Optimization is also mindful of local disk usage, use of cellular networks, battery life, and other network activity.
It is also integrated with and builds on the existing security measures in Windows Update and Windows Store to check the authenticity of each file downloaded from other PCs. Particularly for PCs with challenging network conditions, this is designed to provide a better and more reliable download experience.
You may turn off Delivery Optimization by following these steps:
There you find an on/off switch for the feature.
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