When JetPack with CUDA 9 for Jetson TX2?

CUDA 9 has new features.

Hi, a future release of JetPack-L4T will include the upgraded version of CUDA toolkit.

Is there any roadmap for an actual release date? Why the lag and delay?

NVIDIA doesn’t commit publicly to release dates of L4T in advance. It is planned to be out later this year or early next year. Since there are many components within JetPack beyond just CUDA toolkit, including TensorRT, cuDNN, L4T kernel, ect. there are other dependencies to the release too.