Readme updates

README.md

@@ -10,7 +10,7 @@ Copyright (c) Microsoft Corporation.
 
 This package contains UVAtlas, a shared source library for creating and packing an isochart texture atlas.
 
-This code is designed to build with Visual Studio 2017 ([15.9](https://walbourn.github.io/vs-2017-15-9-update/)), Visual Studio 2019, Visual Studio 2022, or clang for Windows v11 or later. Use of the Windows 10 May 2020 Update SDK ([19041](https://walbourn.github.io/windows-10-may-2020-update-sdk/)) or later is required.
+This code is designed to build with Visual Studio 2017 ([15.9](https://walbourn.github.io/vs-2017-15-9-update/)), Visual Studio 2019 ([16.4](https://walbourn.github.io/vs-2019-update-4/) or later), Visual Studio 2022, or clang for Windows v11 or later. Use of the Windows 10 May 2020 Update SDK ([19041](https://walbourn.github.io/windows-10-may-2020-update-sdk/)) or later is required.
 
 These components are designed to work without requiring any content from the legacy DirectX SDK. For details, see [Where is the DirectX SDK?](https://aka.ms/dxsdk).
 
@@ -66,6 +66,8 @@ Sander et al. "Signal-Specialized Parametrization" Europgraphics 2002 [pdf](http
 
 * The UWP projects and the Win10 classic desktop project include configurations for the ARM64 platform. These require VS 2017 (15.9 update) or later to build, with the ARM64 toolset installed.
 
+* When using clang/LLVM for the ARM64 platform, the Windows 11 SDK ([22000](https://walbourn.github.io/windows-sdk-for-windows-11/)) is required.
+
 ## Contributing
 
 This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.opensource.microsoft.com.