add NCCL 2.8 to supported version
@@ -58,7 +58,7 @@ Part of the CUDA features in CuPy will be activated only when the corresponding
* The library to accelerate tensor operations. See :doc:`reference/environment` for the details.
-* `NCCL <https://developer.nvidia.com/nccl>`_: v2.4 (CUDA 9.2) / v2.6 (CUDA 10.0) / v2.7 (CUDA 10.1+)
+* `NCCL <https://developer.nvidia.com/nccl>`_: v2.4 (CUDA 9.2) / v2.6 (CUDA 10.0) / v2.7 (CUDA 10.1+) / v2.8 (CUDA 10.2+)
* The library to perform collective multi-GPU / multi-node computations.
