Hey guys...
It seems there is something fishy about this version!
First of all the OpenCL 1.0 compatibility should make my ATI 4870 work...
Well, rendering with enabling it starts and does produce a Rendering... but GPU utilization is @ 1% what tells me that the CPU still does the work here!
Maybe some other OpenCL 1.0 people can tell confirm...?!
Second thing was to test general speed... yeah

My first very simple testscene jumped from 653k to 725k from last to this version... awesome!!
But then I realized that the new version doesn't refresh Viweport after hitting the halt condition O_o
By this I wasn't able to save my 2min rendering for comparing with old version since last refresh was at 1min... wtf!!?!
Then I did further speed tests and had some quite catastrophically bad results with my Kitchen & Cinema scene:
Kitchen PT-BiDir:3.2.2: 259k
3.2.3: 170k
Kitchen PT:3.2.2: 288k
3.2.3: 215k
Cinema (SSS) PT-BiDir:3.2.2: 325k
3.2.3: 251k
Bedroom II PT:3.2.2: 404k
3.2.3: 406k
Grass PT:3.2.2: 217k
3.2.3: 226k