---
blogpost: true
date: Dec 13, 2025
author: Matteo Spanio
category: announcements
tags: open-source, release
---


# TorchFX 0.2.1 Released 🎉

I’m excited to announce the release of **TorchFX version 0.2.1**! This update brings new functionality, improved documentation, and several important fixes — thanks to contributions from the community.

## ✨ Major Highlights

### Added

- **`Delay` effect** with BPM synchronization option by [https://github.com/itsuzef](https://github.com/itsuzef), supporting multiple delay strategies  
- New examples in the `examples/` folder:
  - `delay.py` showcasing the new Delay effect  
- **Citation file (`CITATION.cff`)** for easy referencing of TorchFX in academic works

### Changed

- Updated **documentation** to include the new Delay effect and refresh existing examples  
- GitHub workflow updated to **run checks in parallel jobs**, providing faster feedback

### Fixed

- Pre-commit configuration now properly runs `mypy`, `docformatter`, and `black`  
- Fixed many type hints across the codebase

For full details, check out the **[changelog](https://github.com/matteospanio/torchfx/blob/master/CHANGELOG)**.

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This release continues the mission of TorchFX: providing **fast, differentiable audio filters**, robust examples, and a strong foundation for research and open-source contributions.  

A big thanks to everyone who contributed, tested, or suggested improvements — your support keeps the project moving forward!