Diffusers 0.34.0 adds Wan VACE video pipelines, Video2World, and enhanced torch.compile

AI Impact Summary

Diffusers 0.34.0 unlocks new controllable video generation with Wan VACE (1.3B and 14B) and Video2World pipelines (Cosmos Predict2), plus long-format tooling (Hunyuan Framepack, F1 Framepack) and AccVideo/CausVid LoRAs for accelerated, high-quality video. It also expands image-generation options (Cosmos Predict2 Text2Image, Chroma, VisualCloze) and enhances 3D model loading (WanTransformer3DModel) with LoRA support (FusionX), enabling richer, end-to-end workflows. The upgrade improves torch.compile compatibility, offloading, and 4-bit quantization workflows to reduce memory and boost speed, but teams should validate LoRA loading and any PyTorch fullgraph prerequisites to avoid runtime issues in production.