Compared to TP4, yes there are improvement’s, that is for sure.
Your can read most of it here https://technet.microsoft.com/en-us/library/dn765472(v=ws.12).aspx
However, there is also a “release notes” that you must read, it mention one very important piece!
“Install Cumulative Update for Windows Server 2016 Technical Preview 5 (KB3157663) before installing any server roles, features, or other products. If you install roles before installing the update, a variety of issues can occur. If this happens, reinstall the preview release and then immediately install the update.”
You can read more about that update here https://support.microsoft.com/en-us/kb/3157663 and download it from Microsoft Catalog:
Categories: Windows Server 2016