code_provenance.json

{
  "source_repo": "meituan-longcat/LongCat-Next",
  "source_revision": "0cf0631862402ff36366e513e4023d22e7e5c84c",
  "compatibility_base": "Qwen2.5-VL window-attention implementation from the previously pinned/tested Lance release; original notices retained.",
  "changes": [
    "CPU selects eager attention instead of forced FlashAttention",
    "Lazy import of optional image-refiner pipeline",
    "PyTorch segmented-attention fallback for CPU",
    "No tensor mutation during extraction; CPU decoder/VAE runtime casts are explicit."
  ]
}