I have noticed the same thing. Before the ECU update I had the well documented surge of revs as you pull away. Following the update the straight forward surge has gone and has been replaced with the pulsing of the revs as you pull off - exactly as if you were blipping the throttle with your right foot just as the clutch bites.
Sounds like it is a direct result of the ECU update and is likely to scare folk on zebra crossings.
Sounds like it is a direct result of the ECU update and is likely to scare folk on zebra crossings.