Updates and add 50 series notice

Signed-off-by: Eric Kerfoot <[email protected]>

Author: ericspod

docs/source/whatsnew_1_5_1.md

@@ -3,7 +3,9 @@
 
 This is a minor update for MONAI to address security concerns and improve compatibility with the newest PyTorch release.
 
-- Support up to Pytorch 2.8,
+With the upgrade support for PyTorch 2.8, MONAI now directly support NVIDIA GeForce RTX 50 series GPUs and other Blackwell-based GPUs!
+
+- Support up to PyTorch 2.8.
 - Security fixes to address advisories [GHSA-x6ww-pf9m-m73m](https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-x6ww-pf9m-m73m), [GHSA-6vm5-6jv9-rjpj](https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-6vm5-6jv9-rjpj), and [GHSA-p8cm-mm2v-gwjm](https://github.com/Project-MONAI/MONAI/security/advisories/GHSA-p8cm-mm2v-gwjm),
 - Updated version of supported Huggingface Transformers library to address security advisories raised for it.
 - Updated Torchvision pretrained network loading to use current arguments.