Just installed Camera Raw 13.2 for support of new Sony Alpha 1 camera (and others), but it appears that Lightroom Classic 10.2 is required to use ACR 13.2, and that version of LRC isn't available yet??
10.2 isn't available in the UK yet either. Camera Raw 13.2 will get used if you try to open an ILCE-1 ARW file in photoshop though, allowing you to perform some of the tweaks you are used to using in Lightroom before it then opens in Photoshop. I know that is not ideal and probably ruins your workflow, it does however show what amazing detail awaits.
"allowing you to perform some of the tweaks you are used to using in Lightroom"
Yes, and even if you do not want to 'Open' (as a PSD or TIFF) in Photoshop, we can simply edit in ACR then click on the [Done] button and a Sidecar xmp file is created that can be 'read' by Lightroom-Classic 10.2 -when it is is released.