Gemma v0.20.8 Release - Model and Infrastructure Updates

AI Impact Summary

This release, v0.20.8, includes updates to ROCm, gemma4, and MLX, indicating ongoing development and improvements to the underlying models and infrastructure. The changes highlight efforts to enhance performance, fix bugs, and add new capabilities within the Gemma ecosystem. The inclusion of ROCm 7.2.1 suggests continued optimization for AMD hardware, while the gemma4 updates point to ongoing refinements in the model itself.