Add get_timestamp() and format_output_filename() utilities to folder_paths.py
that generate unique filenames with UTC timestamps. This eliminates the need
for client-side cache-busting query parameters.
New filename format: prefix_00001_20260131-220945-123456_.ext
Updated all save nodes to use the new format:
- nodes.py (SaveImage, SaveLatent, SaveImageWebsocket)
- comfy_api/latest/_ui.py (UILatent)
- comfy_extras/nodes_video.py (SaveWEBM, SaveAnimatedPNG, SaveAnimatedWEBP)
- comfy_extras/nodes_images.py (SaveSVG)
- comfy_extras/nodes_hunyuan3d.py (Save3D)
- comfy_extras/nodes_model_merging.py (SaveCheckpointSimple)
- comfy_extras/nodes_lora_extract.py (LoraSave)
- comfy_extras/nodes_train.py (SaveEmbedding)
Amp-Thread-ID: https://ampcode.com/threads/T-019c17e5-1c0a-736f-970d-e411aae222fc
The created checkpoints contain workflow metadata that can be loaded by
dragging them on top of the UI or loading them with the "Load" button.
Checkpoints will be saved in fp16 or fp32 depending on the format ComfyUI
is using for inference on your hardware. To force fp32 use: --force-fp32
Anything that patches the model weights like merging or loras will be
saved.
The output directory is currently set to: output/checkpoints but that might
change in the future.