Microsoft is rolling out a new cumulative update with version KB3176938 and OS build 14393.105 for users who have recently updated their PCs to Windows 10 Anniversary Update. Before being rolled out to public, this particular build was first made available to members of Windows Insider Program.
This cumulative build, as always, bundles various quality improvements and crushes bugs but it does not contain any new features. According to the release note it enhances reliability of Windows Ink Workspace, Edge browser, File Server, Windows kernel, Microsoft Component Object Model (COM), Cluster Health Service, Hyper-V, multi-factor authentication (MFA), NTFS file system, PowerShell, Internet Explorer 11, facial recognition, graphics, Windows Store and Windows Shell.
Additionally, you should notice performance boost related to Windows Store app purchase, battery life for wearable devices such as Microsoft Band even when the Bluetooth is connected and idle.
It also improves compatibility of using Xbox controllers with various games and addresses issue with incorrect character mapping between Japanese and Unicode for the question mark. Upon updating you PC, you will no longer face problem that prevents the download of .NET objects in Internet Explorer 11.
Other fixes are for the issued related to compatibility, remote desktop, BitLocker, PowerShell, Direct3D, networking policies, Dynamic Access Control (DAC) rules, Microsoft Edge, Connected Standby, mobile device management (MDM), printing, Fingerprint login, and Cortana.
Apart from that there are two more enhancements but only for the Windows 10 Mobile users. They include support for new Near Field Communication (NFC) chips, and addresses the issue that prevented game or app audio from resuming after a call ends.