I was actually excited to test this out and now I'm just frustrated, this is just my experience, so yours may differ.
I have a 7608NI-E2, I initially upgraded through the web interface, but after activating it in iVMS-4200, I couldn't turn on DHCP or update the network settings. So I TFTPed the firmware, but then none of my cameras would connect (I should mention all my hardware is western region). So I ended up TFTPing the camera firmware again as well, and that finally worked.
So I set it up and naturally the first thing I test is email notifications for line/intrusion detection. I trigger the line crossing, email is sent, no attachment. I trigger it a few more times with the same result. A few more times after that and I don't even get email notifications anymore. Now some other issue has come up and I can't even view the stream from the web-interface.
Maybe someone else who has a bit more patience can investigate this further, but this firmware has been nothing but frustration and disappointment.