what happen to the film response feature in cycles?

I noticed it’s been missing for a while?
any reason why that is?

Yeah… It I’m missing it too. I don’t know why they removed film response feature. It was very quick to try different looks. :no:

As I remember there was a plan to move it to composite subsystem, maybe it will end as real time preview with composition, at least simple node setup like color map only without any slow filtering?