# Hugging Face Transformers v2.5.1 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v2.5.1
- **Released:** Feb 24, 2020
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v2.5.1/

## Executive Summary (TL;DR)
Hugging Face Transformers v2.5.1. Source highlight: AutoTokenizer has been put back to False by default so as to not have a breaking change between 2.4.x and 2.5.x

## Breaking Changes & Deprecations
- AutoTokenizer has been put back to False by default so as to not have a breaking change between 2.4.x and 2.5.x

## Upgrade Command
```bash
python -m pip install 'transformers==2.5.1'
```