WINDOWS 10 VERSION 1809

Windows-10-logoWindows 10 version 1809 (Redstone 5)was released on October 2, 2018. The build version for the release is 17763.1 and we expect that to change with update rollups.

This is being rolled out in stages so it may not be on Windows update on some machines immediately. Some other updates may install before Redston 5 will install.

By far the biggest improvement is the improved security features against ransomware. Most recent security reports are due to using out of date systems.

Intel in its own advisory has recommended users with 6th Generation (Skylake) or newer processors to simply confirm that Intel Graphics Driver version 24.20.100.6286 or newer is installed on their computers before they install Windows. Intel said that a fix is already included in Intel Display Audio Driver version 10.25.0.10, which is bundled with 24.20.100.6286.

Android phone users, you can finally stop emailing yourself photos. With Your Phone you get instant access to your Android’s most recent photos on your PC. Drag and drop a photo from your phone onto your PC, then you can copy, edit, or ink on the photo. Try it out by opening the Your Phone app. You’ll receive a text with a link to download an app from Microsoft to your phone. Android 7.0+ devices with ethernet or Wi-Fi on unmetered networks are compatible with the Your Phone app. For PCs tied to the China region, Your Phone app services will be enabled in the future.

For iPhone users, Your Phone app also helps you to link your phone to your PC. Surf the web on your phone, then send the webpage instantly to your computer to continue what you’re doing–-read, watch, or browse– with all the benefits of a bigger screen.

For kiosk users, Windows 10 has better support which will be helpful for those who use a PC for things like a Virtual Reality setup etc. Digital signage and interactive systems are now able to use full screen using Edge.

Azure Active Directory and Active Directory users using Windows Hello for Business can use biometrics to authenticate to a remote desktop session.

For those with a TPM chip, bitlocker improvements are welcome. AES-128 and AES-256 modes are available. Both are strong and for older machines AES-128 is easier to handle while Ivy Bridge and above have AES in hardware, users need Skylake or better for AES-256 in silicon. Our Lenovo T500 with and old Core 2 T9400 can handle both levels in software easily. The TPM chip does a lot of the work.

There is an updated Media Creation tool for making a DVD or USB stick for clean installation of Windows 10 version 1809.

WDDM 2.5

  • Ray tracing New Direct3D DDI’s were created in parallel of Direct3D API’s, in order to support hardware-accelerated ray tracing. Example DDIs include:
    • PFND3D12DDI_BUILD_RAYTRACING_ACCELERATION_STRUCTURE_0054
    •  PFND3D12DDI_COPY_RAYTRACING_ACCELERATION_STRUCTURE_0054.
  • WDDM 2.5 drivers will need to ensure their DirectX11 UMD, DirectX12 UMD, KMDs, and any other DLL loaded by these components, adhere to the Universal API.
  • Lots of other improvements mostly of interest to developers.

Most of the WDDM 2.5 is intended to make it easier to use the NVIDIA GTX 2080 Ti card. AMD is likely to have some hardware down the road.

A new SDR brightness boost was introduced to raise the reference white of SDR content to the user-desired value, allowing SDR content to be reproduced to a typical 200-240 nits, which is equivalent to what users have expected for SDR displays. SDR brightness boost affects overall Brightness3 behavior in two ways:

This boost is applied pre-blend only on SDR content. HDR content is not affected. Meanwhile, for most laptop/brightness3 scenarios, users expect all content (SDR and HDR) to be adjusted.
When the Brightness3 stack in the OS is determines the desired nits value, it is not aware of the already applied SDR boost.

The driver must then apply a compensation to the desired nits value coming from Brightness3 DDIs for HDR. Since Graphics drivers (and downstream TCON etc.) will be modifying the pixel values of the content to get desired nits value, there should also be a compensation applied to the HDR content metadata as provided by the applications via D3DDDI_HDR_METADATA_HDR10 or OS defaults via DxgkDdiSetTargetAdjustedColorimetry. Since Graphics driver (TCONs) are responsible for modifying the pixel data, it is the driver’s responsibility to compensate the HDR content metadata.

The kernel mode device driver interface (DDI) change is part of WDDM 2.5 to expose new capabilities to be reported by driver/device, providing information regarding the HDR functionality supported by the driver/device.

KNOWN ISSUES

Outr Lenovo X220 still runs hot with Windows 10. Out Lenovo X230 still runs the CPU hard when plugged in. Our Lenovo T400 and Lenovo T500 both run Windows 10 fine with the CPU speedstep working properly. Out Samsung R540 also works fine.