# Hugging Face Transformers v4.0.1 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v4.0.1
- **Released:** Dec 09, 2020
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v4.0.1/

## Executive Summary (TL;DR)
Hugging Face Transformers v4.0.1. Source highlight: This patch releases introduces:

## Bug Fixes
- Fixes an incorrect attribute in the trainer. #8996

## Upgrade Command
```bash
python -m pip install 'transformers==4.0.1'
```