Today, new major version of all phpMyAdmin support libraries have been released. The major reason behind this is that they all now follow PSR-4 and they are located under the PhpMyAdmin namespace.
Hopefully this will make it easier to integrate within other tools and this really should be last big API change for these libraries. They will be also used by upcoming phpMyAdmin 4.7.0, so that gives us another big commitment for API stability.
Anyway if you want to move ahead, update your dependencies in composer.json accordingly:
On the other changes, the SQL parser also gained ability to produce localized error messages (thanks to using motranslator internally).