ComfyUI 0.38.0

What's Changed

• Improve qwen 2.1 KV cache location logic by @rattus128 in https://github.com/Comfy-Org/ComfyUI/pull/16429
• Compile Qwen Image 2.1 transformer blocks by @rattus128 in https://github.com/Comfy-Org/ComfyUI/pull/16430
• Allow model files to contain which attention should be used for each block. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16419
• JsonExtractString can now handle JSON with prefix and/or suffix. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16439
• Remove torchaudio dependency. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16457
• Cuda graphs + memory compiler on ace step 1.5 autoregressive model. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16461
• Blend H3 VAE tiles against composited neighbours by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16436
• Fast disk detection to all model loaders. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16425
• [Partner Nodes] feat(Tencent): add Hunyuan Image 3.5 text-to-image and edit nodes by @comfyui-wiki in https://github.com/Comfy-Org/ComfyUI/pull/16462
• Update workflow templates to v0.11.68 by @comfyui-wiki in https://github.com/Comfy-Org/ComfyUI/pull/16466
• TextGenerate: Add system_prompt input and separate thinking output (CORE-460) by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16442
• MiniMax-H3: Support Fun-Controlnet-Union 2.0 (CORE-462) by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16471
• Fix MiniMax-H3 VAE rms_rope crash on offloaded qk_norm_scale by @chelsealong in https://github.com/Comfy-Org/ComfyUI/pull/16485
• Port some optimizations to flux model family. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16488
• [Partner Nodes] feat(Quiver): add Arrow 2 models with reasoning effort widget by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16478
• [Partner Nodes] feat(Anthropic): add Claude Opus 5.5 to the Claude node by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16479
• [Partner Nodes] feat(Recraft): add Recraft V4.1 Flash to the V4 text-to-image node by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16501
• Update workflow templates to v0.11.69 by @comfyui-wiki in https://github.com/Comfy-Org/ComfyUI/pull/16503
• Fix ImageUpscaleWithModel crashing on RGBA images by @chelsealong in https://github.com/Comfy-Org/ComfyUI/pull/16500
• Take the SQLite write lock up front for asset scan and output-registration writes by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16480
• Move file reads out of the remaining asset write transactions by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16486
• feat: ming-image support by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16482
• Fix saving/loading ming image model breaking detection. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16514
• Lower memory usage and .comfy_attention support for lumina family models. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16515
• [Partner Nodes] feat(OpenAI): add GPT-6 Sol and Luna models by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16520
• [Partner Nodes] feat(ByteDance): add Seedream 5.0 Flash by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16522
• fix(assets): harden the asset catalogue's failure paths by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16393
• Add missing RDNA2 arches to list. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16537
• feat(npu): support async weight offload streams by @Big2Wheel in https://github.com/Comfy-Org/ComfyUI/pull/16057
• Small fix: skip unnecessary work. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16540
• Fix Qwen VL image preprocessing crash on 4-channel (RGBA) input by @chelsealong in https://github.com/Comfy-Org/ComfyUI/pull/16548
• [Partner Nodes] feat(ByteDance): add Seedance 2.5 Draft mode by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16529
• Update workflow templates to v0.11.70 by @comfyui-wiki in https://github.com/Comfy-Org/ComfyUI/pull/16557
• Add HDR LogC3 and ACEScct to Convert Color Space node. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16541
• Fix HDR output issue with negative values in Convert Image Color Space. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16565
• Update sheetsage2 abc creation from upstream yue code. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16569
• perf(assets): replace pathlib prefix checks in the asset scan by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16543
• Mention some ComfyUI optimization details in README. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16576
• Support tiny VAE for Qwen-Image 2.1 by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16552
• feat: Support ID-V2V Wan 2.1/VACE based model (CORE-426) by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/15139
• Fix potential regression with previous PR. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16596
• [Partner Nodes] chore(Sora): remove deprecated Sora nodes by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/16609
• Clamp Qwen Image 2.1 fp16 activations in place by @dcbert in https://github.com/Comfy-Org/ComfyUI/pull/16608
• Add comfy_attention and AttentionTensorContainer to a few models. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16595
• Speedup Yue2 AR by @rattus128 in https://github.com/Comfy-Org/ComfyUI/pull/16626
• Searching "kitchen" now returns the attention node. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16632
• Support Qwen-Image 2.1 union fun controlnet by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16519
• Update comfy-kitchen package version to 0.2.36 by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16635
• Optimize Seedvr2 by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16530
• Support w6a8 quantization format by @kijai in https://github.com/Comfy-Org/ComfyUI/pull/16483
• Fixes for last PR. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16637
• fix(db): wait briefly for the database lock at startup by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16602
• fix(assets): Start without the assets packages; --enable-assets reports what is missing and runs with assets disabled by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16580
• perf(assets): keep the UI responsive during asset scans and rescan output by listing folders by @synap5e in https://github.com/Comfy-Org/ComfyUI/pull/16546
• Speedup generation on qwen3.5/3.8 with long contexts. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16638
• Avoid unnecessary write. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16639
• Update codeowners. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/16655

New Contributors

• @Big2Wheel made their first contribution in https://github.com/Comfy-Org/ComfyUI/pull/16057
• @dcbert made their first contribution in https://github.com/Comfy-Org/ComfyUI/pull/16608

Full Changelog: https://github.com/Comfy-Org/ComfyUI/compare/v0.37.0...v0.38.0