The long change log was posted on the Feedback Hub (via Microsoft’s Brandon LeBlanc) and is reproduced below:
Improved reliability of Network Controller, DNS server, gateways, Storage Spaces Direct, Group Managed Service Accounts, remote procedure calls (RPC), PowerShell, Internet Explorer, printer pairing and interoperability, the Windows kernel, Media Core, the Store, Connected Standby, Cluster Health service, the Hypervisor debugger and platform, and Active Directory.
Improved performance for Storage Spaces Direct (S2D) with many nodes or disks, scrolling lists on Xbox, DHCP address acquisition, Active Directory queries, and the Cluster Health service.
Addressed issue that prevents external media from playing on Xbox One using the Cast to Device menu.
Addressed issue that causes the Mouse events to be not recognized sometimes in Internet Explorer.
Addressed issue that slows the rendering and resizing of nested tables in Internet Explorer.
Addressed issue that was not causing the UI layout to be updated correctly in Internet Explorer 11 quirks mode.
Addressed issue that was causing nodes to be disconnected from a Cluster service intermittently.
Addressed issue with the 3G and 4G options not shown correctly in Windows 10 Mobile settings.
Addressed additional issues with MDM enrollment for an Azure Active Directory tenant, software compatibility, poor rendering of Yu Gothic font family, Cortana, slow connections to cluster shares, Xbox One cannot launch the Netflix app using the DIAL protocol, Xbox sound volume and music playback, all video stops while audio plays in a Movies & TV app, incorrect scaling of Internet Explorer’s first-run dialog, driver setup, Windows Update for Business, apps failing to install after resetting device, boot failure with Hyper-V and BitLocker enabled, Cache Manager, Cluster Health service, cannot alter roles and features on a locked down machine, disk-to-enclosure mappings not working, PowerShell, missing lock screen image, fitness tracker not recognized as a mass storage device, synchronization not working between Intune and Azure Active Directory (AAD), failed Wi-Fi Skype calls, poor streaming playback using progressive download, failed cancellation of Store download, extensions for Microsoft Edge, incorrect Lock screen UI after resuming from hibernate and sleep and blocked installation of Store game bundles.
Late on Thursday night, Microsoft re-released the same update for Windows 10 PC Insider owners with an additional fix. People who had downloaded the previous 14393.82 build did not receive this new version.
Source : WindowsCentral