Microsoft has begun to roll out a new preview build of Windows 10 to those in the Insider program currently on the Fast ring. This new build, version 11082, is the first build from Microsoft's Redstone development branch (RS1), which is set to be the next major update to Windows scheduled for public release next year.
As the current Redstone build is very early in its development, none of the features that will eventually make it into the final build have been included. This means there's no new Cortana functionality, no deeper Office 365 integration, and no updates to the Windows 10 Action Center.
Build 11082's updates still revolve around "product improvements based on the feedback we’re hearing on the November update", according to Microsoft's Gabe Aul. However, the company is working on improvements to OneCore, the shared core that is used in every version of Windows, that will make it easier to develop apps across all platforms.
There are some issues with build 11082, which is why Microsoft has restricted its release to the Fast ring for now. Language packs will fail to install when running this build, and progress dialogs for copying, deleting or moving files won't appear. Some app default settings will also be reset, which will cause Music & Video to default back to Windows Media Player.
Gab Aul also announced today that Windows Insiders on the Fast ring should prepare for faster updates. Starting in January, Microsoft will release more builds to Insiders at a more frequent pace, with the company changing their Fast ring release criteria to more closely match internal release rings. Users that don't want faster updates are advised to switch to the Slow ring.