By default short range AO now runs at half-resolution and goes through a denoiser. It made short range AO ~x2 faster and I didn’t see any issues anywhere.
You can restore the previous approach using:
r.Lumen.ScreenProbeGather.ShortRangeAO.DownsampleFactor 1
r.Lumen.ScreenProbeGather.ShortRangeAO.Temporal 0