TensorRT version for ISAAC

Hello, while looking into the reference document for Isaac, it tells, have to use Isaac with Jetpack version 4.5.1 which has TensorRT version 7.1.3. And I would like to use TensorRT version 8.
Can I use TensorRT-8 with Jetpack 4.5.1 for ISAAC?

Isaac SDK has only been tested with JP 4.5.1 with TensorRT 7. It is likely that there are no issues with TRT8 but it is not yet supported.