What’s new in Build 14393.1378 for Windows 10 Mobile Anniversary update. Read Changelog

This non-security update includes quality improvements. No new operating system features are being introduced in this update. Key changes include:

• Addressed an issue introduced by KB4022715 where Internet Explorer and Microsoft Edge printing from a frame may result in 404 not found or blank page printed.
• Addressed issue where CRM UI may hang when pressing the reply button in mail workflow.
• Addressed issue where the Volume Activation Services tool (vmw.exe) stops working with error “Indicates two revision levels are incompatible“ when attempting to activate the Volume License Service role.
• Addressed issue where multipath I/O does not use other available paths during a failover scenario.
• Addressed issue where a PC randomly crashes after a user inserts a USB device into the USB port.
• Addressed issue where a blue screen and the “unmountable_boot_volume” message appear during the system boot process when the Unified Write Filter is enabled.
• Addressed issue where a computer stops working when trying to add a phone to the computer for use as a modem.
• Addressed issue where Simple Network Management Protocol (SNMP) applications stop receiving traps.
• Addressed issue where Page faults for Demand Zero Pages are significantly slower (> 10%), which causes many applications to run slower.
• Addressed issue with error that occurs when users sign out from an application when Active Directory Federation Services is enabled.
• Addressed issue where nodes fail to join a cluster because of failed certificate authentication if SHA1 is disabled.
• Addressed issue with the Server Message Block Bandwidth limiting feature not working.
• Addressed issue where the storage replication driver (wvrf.sys) is in an infinite loop.
• Addressed issue where a 2012 R2 or below Remote Desktop License Server causes the 2016 Remote Desktop Services Host to crash and stop giving sessions to clients.
• Addressed issue to add support in certutil.exe to allow certificate templates to be marked for Windows Hello.
• Addressed issue where you may lose access to storage disks when there are still available paths if there is an error on one of the multipath I/O paths.
• Addressed a WS-Federation sign-out problem where users initiate Sign-out from an application configured with SAML. In this case the Sign-out fails with an ADFS exception identified with an ADFS Admin Event 364 Error. This issue is limited to ADFS 4.0.
• Addressed issue where the creation of virtual disks fails in Windows Server 2016 storage spaces when the physical disk allocation is set to manual for all the selected disks.
• Addressed a reliability issue in Windows Search.
• Addressed additional issues in printing, updates to the Access Point Name (APN) database, Start menu and taskbar,  Internet Explorer and the Windows Shell.

Source: Microsoft