All Blender 16+ (v4+) version have extreme slow time on "Upload Shader" up to 23sec on any shaders changes (any value, etc.)
Stable 15+ version this is simultaneously, as simultaneously in all Standalone Octane.

A. Win 10
B. GTX1060+GTX780ti or 2xGTX1080ti
C. 64Gb
D. Nvidia driver version 399.07

F ...

When TEST builds will be available for subscription based licenses?

There is no HDR Texture bit settings in Blender (latest octane blender) as on Octane standalone.
HDR always open as 16bit float.
And HDRI with more than 16EV render higher brightness as black.
Is it possible to fix this issue ASAP, this make unable to use good unclipped HDRIs in Octane Blender ...