ComfyUI | v0.3.44 · v0.3.45 Update – Train LoRA improvements and various sampler node updates!!
This video summarizes the key updates in ComfyUI v0.3.44 and v0.3.45.
These versions focus on sampling stabilization and the expansion of CFG-related nodes,
along with significant improvements to the Train LoRA workflow.
New sampler structures and guider nodes such as ER-SDE, SA-Solver, and TCFG have also been added.
🧩 Summary of Major Updates
1) Sampling and Node Additions
TCFG Node (Tangential Damping Classifier-Free Guidance)
Suppresses artifacts and excessive color loss that occur at high CFG values,
maintaining the step-by-step stability of the diffusion model. (Based on CVPR 2025 publication)
ER-SDE Sampler
Converts the previous VE method into a VP structure to equalize noise variance,
allowing precise control of the restoration path with parameters such as Solver Type, eta, and max_stage.
SA-Solver Sampler
A stochastic Adams-based sampler that controls the ODE↔SDE transition range
with sde_start_percent and sde_end_percent to improve generation quality.
2) CFG and Guider Improvements
CFGNorm Node
Normalizes the magnitude difference between conditional and unconditional predictions,
reducing excessive brightness or distortion and stabilizing the image.
DualCFGGuider
Supports Regular/Nested styles for cond1, cond2, and negative conditions,
allowing fine-tuned control of negative prompt strength.
PerpNeg Guider
Internal model operations have been moved to the sampling stage for better efficiency,
providing optimal results at CFG 6–8 and neg_scale 0.8–1.2.
3) LoRA Training Improvements
Text Dataset from Folder Node Added
Automatically detects .txt captions with the same name as the image.
Supports the Kohya_ss folder naming format {num}_{dataset} for automatic dataset expansion.
Optimized training loop for improved batch and step calculation efficiency.
4) Other Platform Improvements
SkipLayerGuidanceDiT (Simple): Simplified to a 2-pass structure for faster speed.
ImageFlip / ImageRotate: Added simple nodes for image flipping and rotation.
SamplingPercentToSigma: Allows sigma value control in percentage units.
Custom Node Whitelist Option Added (--whitelist-custom-nodes).
3D Resource Auto Registration and Template 0.1.39 Update.
(Source: GitHub @comfyanonymous/ComfyUI v0.3.44–v0.3.45)
ComfyUI workflows and sample nodes can be found at:
https://github.com/CreatoonForge/crea...
🕒 Timeline
00:00 Intro
00:30 Headline – Summary of Major Updates
00:54 TCFG Node – High CFG Stabilization
02:00 ER-SDE Sampler – VP-based Probabilistic Sampler
05:26 SA-Solver – Stochastic Adams Method Support Sampler
07:43 SkipLayerGuidance – Faster SLG Simple Node
08:54 ImageFlip / ImageRotate
09:11 Train LoRA – Kohya_ss Folder Structure Support and Speed Improvement
11:32 CFGNorm
12:58 DualCFGGuider
16:11 PerpNegGuider
17:22 Other Updates
18:25 Closing
💬 About CreaToon Forge
Hello, this is CreaToon Forge.
We provide AI creation tutorials and 2D webtoon-style practice guides based on ComfyUI and Stable Diffusion.
Our content is structured around hands-on learning so that even beginners can follow along,
and we regularly cover the latest ComfyUI features and prompt-writing techniques.
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