This is the first update post-GA and includes a preview of the 32-bit and ARM64 clients which can be accessed from:
https://docs.microsoft.com/en-us/azure/virtual-desktop/connect-windows-7-and-10
You can see what’s changed in this version here:
https://docs.microsoft.com/en-us/windows-server/remote/remote-desktop-services/clients/windowsdeskto...
This version is expected to release publicly on Tuesday 11/12.