Microsoft is now pushing update KB3140741 to Windows 10 running PCs on Version 1511. This is a servicing stack update and the package for the x86 version is 5 MB and the package for the x64 version is 11 MB.
You can check all earlier WU releases by clicking here.
KB3140741 changelog:
Summary
This update makes stability improvements for Windows 10 Version 1511 servicing stack.
If you are installing a servicing stack update package for the first time, the package for the x86 version is 5 MB and the package for the x64 version is 11 MB.
How to get this update
Method 1: Windows Update
This update will be downloaded and installed automatically.
Method 2: Microsoft Update Catalog
To get the stand-alone package for this update, go to the Microsoft Update Catalog website.
Prerequisites
There are no prerequisites for installing this update.
Restart information
You don’t have to restart the computer after you apply this update.
Update replacement information
This update replaces a previously released update 3139907.
