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@abrichr abrichr released this 29 Mar 23:25
· 104 commits to main since this release
v0.82.1
e27dafc

v0.82.1 (2026-03-29)

Bug Fixes

  • Vlmmodelwrapper PEFT isinstance compatibility for TRL validation (#252, 7879dee)

TRL's validate_quantization_for_training() uses isinstance(model, PeftModel) to check for adapters. The wrapper hid the PeftModel, causing: "You cannot perform fine-tuning on purely quantized models."

Fix: dynamically create a combined class inheriting from both

VLMModelWrapper and the wrapped model's type. This makes isinstance() pass while keeping our forward/generate/cache methods via MRO.

Tests added: - test_peft_attributes_delegated: peft_config accessible through wrapper - test_hasattr_peft_config: hasattr() works for TRL's checks - test_isinstance_peft_model: isinstance(wrapper, PeftModel) == True - test_wrapper_passes_peft_validation (e2e): full TRL validation sim - test_wrapper_preserves_trainable_parameters (e2e): optimizer setup

Co-authored-by: Claude Opus 4.6 (1M context) noreply@anthropic.com

Detailed Changes: v0.82.0...v0.82.1

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