Blender Octane: Blender_Octane_Edition_2022.1_27.10_stable
Octane: OctaneServer_Prime_2022.1_27.10_stable

Issue:
Colored light sources or HDRIs will cause colored/tinted shadows:
https://i.imgur.com/at7wgOx.png
But the Layer Shadows pass is completely grayscale, which is a problem for compositing ...