Friend, consider move to China. People there like 13, but some of them are afraid to see 4, 14, 24... Thus there may not be the 4th or 14th floor in a hotel.

I'm not expecting a seamless upgrade. I'd already tried Preview ?, Preview ?, RC, and kept disappointed. The extension system was not compatible with the one in 2015. My current favorite extensions were not running on it, which became the major drawback for me to try out its features.