# Hugging Face Transformers v5.5.3 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v5.5.3
- **Released:** Apr 09, 2026
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v5.5.3/

## Executive Summary (TL;DR)
Hugging Face Transformers v5.5.3. Source highlight: Small patch release to fix `device_map` support for Gemma4! It contains the following commit:

## Bug Fixes
- [gemma4] Fix device map auto (#45347)

## Upgrade Command
```bash
python -m pip install 'transformers==5.5.3'
```