# Hugging Face Transformers v4.4.0 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v4.4.0
- **Released:** Mar 16, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v4.4.0/

## Executive Summary (TL;DR)
Hugging Face Transformers v4.4.0. Source highlight: v4.4.0: S2T, M2M100, I-BERT, mBART-50, DeBERTa-v2, XLSR-Wav2Vec2

## New Features
- Add m2m100 #10236 (@patil-suraj)
- Add I-BERT to README #10462 (@LysandreJik)
- Add mBART-50 #10154 (@patil-suraj)
- [XLSR-Wav2Vec2] Add multi-lingual Wav2Vec2 models #10648 (@patrickvonplaten)
- Add Fine-Tuning for Wav2Vec2 #10145 (@patrickvonplaten)
- Deprecate Wav2Vec2ForMaskedLM and add Wav2Vec2ForCTC #10089 (@patrickvonplaten)

## Improvements
- Integrate DeBERTa v2(the 1.5B model surpassed human performance on Su… #10018 (@BigBird01)
- [Wav2Vec2] Remove unused config #10457 (@patrickvonplaten)
- [Wav2Vec2] Improve Tokenizer & Model for batched inference #10117 (@patrickvonplaten)
- [PretrainedFeatureExtractor] + Wav2Vec2FeatureExtractor, Wav2Vec2Processor, Wav2Vec2Tokenizer #10324 (@patrickvonplaten)
- [Wav2Vec2 Example Script] Typo #10547 (@patrickvonplaten)
- [Wav2Vec2] Make wav2vec2 test deterministic #10714 (@patrickvonplaten)

## Bug Fixes
- DeBERTa-v2 fixes #10328 (@LysandreJik)
- Fix example in Wav2Vec2 documentation #10096 (@abhishekkrthakur)
- [Wav2Vec2FeatureExtractor] smal fixes #10455 (@patil-suraj)
- [Wav2Vec2] Fix documentation inaccuracy #10694 (@MikeG112)
- Sagemaker Model Parallel tensoboard writing fix #10403 (@mansimane)
- Multiple fixes in SageMakerTrainer #10687 (@sgugger)

## Upgrade Command
```bash
python -m pip install 'transformers==4.4.0'
```