# Hugging Face Transformers v4.27.0 — Release & Upgrade Intelligence
- **Product:** Hugging Face Transformers (https://huggingface.co)
- **Version:** v4.27.0
- **Released:** Mar 15, 2023
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/transformers/updates/v4.27.0/

## Executive Summary (TL;DR)
Hugging Face Transformers v4.27.0. Source highlight: The goal of this model is to build a bridge between each uni-modal encoder and the cross-modal encoder to enable comprehensive and detailed interaction at each layer of the cross-modal encoder thus achieving remarkable performance on various downstream tasks with almost negligible additional perform

## Breaking Changes & Deprecations
- [🛠️] Fix-whisper-breaking-changes   by @ArthurZucker in #21965
- Breaking changes *Generate*

## New Features
- Add BridgeTower model  by @abhiwand in #20775
- Add loss for BridgeTowerForMaskedLM and BridgeTowerForImageAndTextRetrieval  by @abhiwand in #21684
- [WIP] Add BridgeTowerForContrastiveLearning  by @abhiwand in #21964
- add flax whisper implementation  by @andyehrenberg in #20479
- Add WhisperTokenizerFast  by @jonatanklosko in #21222
- [Whisper] Add SpecAugment  by @bofenghuang in #21298

## Bug Fixes
- [WHISPER] Small patch  by @ArthurZucker in #21307
- [Whisper] another patch  by @ArthurZucker in #21324
- [WhisperModel] fix bug in reshaping labels  by @jonatasgrosman in #21653
- Fix-ci-whisper  by @ArthurZucker in #21767
- Fix `WhisperModelTest`   by @ydshieh in #21883
- [Whisper] Fix feature normalization in `WhisperFeatureExtractor`  by @bofenghuang in #21938

## Upgrade Command
```bash
python -m pip install 'transformers==4.27.0'
```