# Hugging Face Transformers v4.51.2 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v4.51.2
- **Released:** Apr 10, 2025
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v4.51.2/

## Executive Summary (TL;DR)
Hugging Face Transformers v4.51.2. Source highlight: Patch Release 4.51.2

## Bug Fixes
- Fix Llama4 offset (#37414)
- Attention Quantization with FBGemm & TP (#37384)
- use rms_norm_eps for the L2Norm for Llama4 (#37418)
- mark llama4 as not supported with fa2 (#37416)

## Upgrade Command
```bash
python -m pip install 'transformers==4.51.2'
```