I was using the denoise option in Blender 2.8, but cant seem to find it in 2.90. The documentation refers to the "Render Layers" but it doesn't seem to be there either.
When I open an older project that was created with 2.8 in 2.9, the denoise option is there and works fine.
is there a setting i need to check to enable the feature by default in new files?