LeRobot v0.5.0 adds Unitree G1 humanoid support, RTC, Pi0-FAST, EnvHub, and Python 3.12/Transformers v5

AI Impact Summary

LeRobot v0.5.0 is a substantial feature release that expands hardware, policies, and data pipelines. It introduces full Unitree G1 humanoid support with whole-body control; autoregressive Pi0-FAST VLA and Real-Time Chunking improve responsiveness, while streaming video encoding reduces cycle time between episodes. The update also exposes EnvHub for loading Hugging Face Hub environments, integrates NVIDIA IsaacLab-Arena, and modernizes the stack to Python 3.12 and Transformers v5, plus PEFT/LoRA support for large VLAs. This combination enables end-to-end real-world humanoid robotics deployments but demands validation across new hardware, policies, and dependency upgrades.