# Hugging Face Transformers v4.3.1 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v4.3.1
- **Released:** Feb 09, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v4.3.1/

## Executive Summary (TL;DR)
Hugging Face Transformers v4.3.1. Source highlight: This patch release modifies the API of the `Wav2Vec2` model: the `Wav2Vec2ForCTC` was added as a replacement of `Wav2Vec2ForMaskedLM`. `Wav2Vec2ForMaskedLM` is kept for backwards compatibility but is deprecated.

## New Features
- Deprecate Wav2Vec2ForMaskedLM and add Wav2Vec2ForCTC #10089 (@patrickvonplaten)

## Upgrade Command
```bash
python -m pip install 'transformers==4.3.1'
```