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  • New Features

  • ONNX

    • Add experimental support for quantizing Scan bodies in QuantizationSimModel, including export and tied boundary quantizers (98862fd, 0b7790c, b1f9dcd)
    • Support Scan models in SeqMSE and AdaScale (96708be, e4f5c5c)
    • Support Mamba2 in analyze_llm_topology (d62b91b)
    • Add strict option to set_param_type to skip incompatible quantizers (6f1416e)

  • Common

    • Add analysis pass support to GenAI Lab (d6e86ea)
    • Add predicated-experts MoE adaptation for Qwen3-MoE and Qwen3.5-MoE to GenAI Lab (6b8e298)
    • Enable subgraph quantization for ONNX QuantizationSimModel in GenAI Lab (594ebe8)

  • Bug fixes and Improvements

  • ONNX

    • Always save models with external data regardless of size (fe922f8)
    • Fix stale quantization axes when loading encodings (bbaeb29)
    • Preserve runtime reduction axes and patch cumsum support in AdaScale's ONNX to torch conversion (db50a5c, c300055)
    • Keep Split sizes inline in SeqMSE's saved model (f69c5d6)
    • Align LLM configurator with GenAI Lab (64dcabd)

  • Torch

    • Preserve zero-point shift in SeqMSE candidate encodings (5a979d8)
    • Fix SpinQuant visual merger rotation compensation (dcd291d)
    • Apply encoding post-processing to canonical QuantizeLinear-DequantizeLinear pairs during ONNX export (e25d511)
    • Synchronize precomputed_zero_point's device with offset (ee5ca3c)
    • Quantize Qwen3MoeTopKRouter pre-softmax logits to match the transformers 4.x gate (5e9e565)
    • Fix CallbackFunc import in quant_analyzer notebook (26e7eca)

  • Common

    • Fix import-time assertion error with onnx<1.18 (3c937bc)
    • Delete unused legacy quantsim config files (093e72f)
    • Use configure_llm API in GenAI Lab (bbb2c97)
    • Fix Qwen 3.5 export on transformers >= 5.15 in GenAI Lab (1d669a6)
    • Export dynamo backbones with one torch.export mode per torch version in GenAI Lab (7d13097)
    • Rename GenAI Lab linear-attention state I/O to conv_state / recurrent_state (e078c16)
    • Fix GenAI Lab relative imports (6c0d5d3)
    • Document v2.1.0 encoding spec and fix broken AdaScale/SpinQuant doc snippets (38dc892, 191d51b)

  • Deprecations

  • ONNX

    • Move adascale, spinquant, llm_topology and llm_configurator out of aimet_onnx.experimental into top-level aimet_onnx. The old aimet_onnx.experimental.* import paths still work but emit a deprecation warning, and will be removed in AIMET 2.45 (94a2319)

  • Torch

    • Move adascale and spinquant out of aimet_torch.experimental into top-level aimet_torch. The old aimet_torch.experimental.* import paths still work but emit a deprecation warning, and will be removed in AIMET 2.45 (6360e0c)
    • Deprecate save_encodings_to_json, load_encodings, load_and_freeze_encodings, set_and_freeze_param_encodings and load_encodings_to_sim in favor of QuantizationSimModel.quantizer_state_dict and torch.nn.Module.load_state_dict (c34cf34)
    • save_checkpoint, load_checkpoint, check_accumulator_overflow and compute_encodings_for_sims are deprecated and will be removed in AIMET 2.44 (c34cf34)
Source: README.md, updated 2026-10-18