If you haven't already, check out the source code before proceeding:
git clone https://github.com/Frameright/php-image-metadata-parser
Run the linter and the unit tests with:
Changelog and version number
Describe the changes made compared to the last released version in the changelog. Browse the git history to make sure nothing has been left out.
Choose the next version number according to the rules of Semantic Versioning and set it by creating a new git tag:
git commit -am "Releasing 1.2.3"
git tag 1.2.3
git push --tags
Packagist will automatically pick up the new tag and create a new release. See https://packagist.org/about . Visit https://packagist.org/packages/frameright/image-metadata-parser to confirm.