●Change8

Migrating to ComfyUI v0.3.33

Version v0.3.33 introduces 1 breaking change. This guide details how to update your code.

Released: 5/8/2025

1
Breaking Changes
1
Migration Steps
5
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

api nodeschromaltxv modelsACE-Step modelACE VAE

Breaking Changes

●Issue #1

Loading of api nodes will fail if the installed pyav version is too old. Users must update pyav to a compatible version to continue using api nodes.

Migration Steps

  1. 1
    Ensure your pyav installation is up-to-date to prevent failures when loading api nodes.

Release Summary

This release introduces initial support for the ACE-Step model, improves memory estimation for LTXV models, and resolves several bugs related to ACE functionality and character encoding. Torchaudio is no longer a hard dependency.

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View the full release notes and all changes for ComfyUI v0.3.33.

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