That's prolly why Paula - you aren't using anything from other programs!  Most of us frequently use outside resources.

I caved & installed it last night & the resources where a nightmare to say the least.  I've never dropped below 75-80% in any prior version(that is with last patches applied)and that was with scenes packed out.  Now I can easily plummet below 60(with only a handful of items) - lowest I saw last night was around 27% & I crashed.  Purging mem did barely anything if anything at all at times.

On the upside - renders are faster when using displacement & SSS & transluceny has now been added for alpha leaves.