v1.6.0

Added

• DeepSeek V4 (model_type=deepseek_v4) as a development-convertible MoE
  family: inspect, plan-manual, and convert on mixed FP4+FP8 Flash sources via
  dequant → affine re-pack under the plan predicate.
• Experimental 2-bit / 3-bit manual recipes for Flash
  (examples/deepseek-v4-experimental-{2,3}bit-v0.1.yaml).
• Development model-card product classes for 2bit / 3bit (and
  *-experimental variants).

Changed

• Convert path handles DeepSeek V4 sanitizer renames: HC tensors, shared-expert
  w1/w2/w3 → proj names, router ffn.gate.bias → e_score_correction_bias,
  FusedSwitchGLU gate+up fuse, and MultiLinear wo_a reshape.
• Inventory reconstructs logical parameters for FP4 expert bodies packed in
  I8/U8 (expert_dtype: fp4); HyperConnection learnable .scale is not
  treated as quant metadata.
• Integrated MTP is byte-preserved into mtp.safetensors without MLX expert
  fusion; protected-MTP verify allows native source packing (including FP4).
• Convert dequants leftover QuantizedMultiLinear modules that public
  mlx_lm.utils.dequantize_model skips (DeepSeek attn.wo_a).

Notes / operators

• DeepSeek V4 conversion needs an mlx-lm build that ships
  mlx_lm.models.deepseek_v4 (not all PyPI 0.31.x wheels). See
  docs/compatibility.md.
• Published Flash packs are development evidence only (not certified).
  2-bit / 3-bit remain experimental; measured BPW is higher than the product
  class because of protected tensors and MTP.
• No migration step for existing non-DeepSeek artifacts or plans.