# Hugging Face Transformers v0.4.0 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v0.4.0
- **Released:** Dec 14, 2018
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v0.4.0/

## Executive Summary (TL;DR)
Hugging Face Transformers v0.4.0. Source highlight: 3-4 times speed-ups in fp16 (versus fp32) thanks to NVIDIA's work on apex (by @FDecaYed)

## New Features
- add examples on how to save and load fine-tuned models.

## Improvements
- improved backward compatibility to python 3.5 (by @hzhwcmhf)

## Upgrade Command
```bash
python -m pip install 'transformers==0.4.0'
```