Xavier has had Ubuntu 18.04 with CUDA 10.0 and CuDNN 7.3 for 4 months!
Ubuntu 18.04 LTS on x86_64 supports CUDA 10.1 and CuDNN 7.5 for practically every other NVIDIA product.
Come on NVIDIA step up and stop wasting our time. Release an update for TX2. Even a preview release would be more welcome than nothing.