Michael

Thanks for the new beta.

I loaded an 80 MB STEP file.
3.0 load time was 9 min, 12 sec
4.0 load time was 1 min / with colors

I'd say that's quite a performance increase.

System info
Processor: Intel(R) Xeon(R) CPU E5-1650 0 @ 3.20GHz (12 CPUs), ~3.2GHz
Memory: 32768MB RAM
Video Card: GTX-970

Very nice indeed.

Keep up the great work.

-s