Changelog

# Changelog
All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]
### Add
- Use RaggedTensor for train and eval pipeline

## [0.2.0] - 2021-07-29
### Changed
- New export script
- New model build way

## [0.1.1] - 2021-01-22
### Changed
- Reduce minimum TensorFlow version to 2.2
- Better post processing add way
- Use StaticHashTable instead of StringLookup layer

## [0.1.0] - 2021-01-09
### Added
- Add <UNK> label
- Add docker support
- Add EditDistance metrics
- Add Decoders for a truly end-to-end model [experimental]

### Changed
- Update minimum TensorFlow version to 2.3.0
- Change img_height, img_width, img_channels to img_shape
- Build a new data pipeline
- Use new preprocessing
- Change model_dir to save_dir in train.py