Like the others, 18.207 was unstable for me. It keeps crashing. I was lucky to keep my MX75 up for 4 hours.
I have been running 18.208 on an MX75 for about 48 hours so far, and it has been flawless.
I am not personally going to use 18.208 at any customer site until I have used it for at least a week without issues after the drama I had with 18.207.