v15.15: latest TensorRT libraries

Compared to the previous stable (v15.14) release:

TRT

• Upgraded to TensorRT 10.15.1.

General

• Upgraded to CUDA 13.1.1 and cuDNN 9.19.0.

vsmlrt.py

• Added support for ArtCNN v1.5.0 models.
• Added bf16 I/O support for the MIGX backend.

Full Changelog: v15.14...v15.15