Windows 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 Most recent security reports are due to using out of date systems.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 18.104.22.16886 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 22.214.171.12486.
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.
UNIVERSAL DRIVER MODEL
Starting with Windows 10 version 1809 microsoft is now supporting a new universal driver model. This is an extension of the universal windows application.
Universal Windows Drivers enable developers to create a single driver package that runs across multiple different device types, from embedded systems to tablets and desktop PCs.
For desktop and laptop machines using Intel or AMD processors the conventional drivers will continue to work with successive versions of Windows. Universal drivers are more useful for new machines that may exist in many market segments but use a common network or audio part.
- 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:
- 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.
VRAM AND MAIN MEMORY
We have a lot of 2GB video cards. More expensive video cards are starting to offer even more memory. Our GTX 750 2GB shows it as having shared memory with the main memory in addition to the cards memory. This is why we have advocated 64-bit for so many years.
We have tried Fermi and Kepler cards and Windows handles the VRAM the same way. Remember that the DMA controller can independently move data from one location to another such as main memory and video card memory. The DMA acts independently of the CPU reducing overheard.
Unlike with the old 8237 DMA controller in the original PC, any PCI device can operate as a bus master. The IOMMU handles address translations on modern 64-bit systems. If the Windows task manager shows virtualization is available on your CPU then your systems has full support for advanced memory management.
Windows 10 version 1809 now uses lot more memory compared to Windows 10 version 1709. The amount of shared memory with the video card means its now more important to have at least 8GB of RAM installed we recommend having 16GB or even 32GB for video cards with more VRAM.
Our Gigabyte GTX 750 has 2048MB GDDR5 and Windows recognizes it fine. The shared memory of 3.4GB is a very large buffer for shaders, textures and meshes.
Our Lenovo X220 still runs hot with Windows 10. Our 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.