# Changelog

All notable changes to this project will be documented in this file, in reverse chronological order by release.

## Next Release - TBD

### Added

- Nothing.

### Changed

- The minimum PHP version requirement has been raised to 8.1.
- The str_starts_with and str_ends_with functions have been used instead of substr where possible.

### Deprecated

- Nothing.

### Removed

- Nothing.

### Fixed

- Nothing.

## 1.2 - 2019-11-07

### Added

- Support for ISMNs (International Standard Music Numbers).

### Changed

- Refactored EAN normalization/checksumming/validation to a separate class.

### Removed

- Nothing.

### Fixed

- Nothing.

## 1.1.1 - 2019-01-22

### Added

- Nothing.

### Changed

- Refined ISBN normalization/extraction (see pull request #4).

### Deprecated

- Nothing.

### Removed

- Nothing.

### Fixed

- Nothing.

## 1.1.0 - 2018-05-23

### Added

- Nothing.

### Changed

- Nothing.

### Deprecated

- Nothing.

### Removed

- PHP 5 support.

### Fixed

- Nothing.