U M N S Y N T A X While Laravel has had the ability to cast your data to and from JSON since version 5.0, it was previously just a convenience—your data was still just stored in a TEXT field. But MySQL 5.7 introduced an actual JSON column type.
U C T U R E C H A N G E S With new Laravel 5.3 installs there are 4 directories that will no longer be included out of the box that where prior to 5.3 Events, Jobs, Listeners, and Policies These directories will automatically get added when they are needed by the frame work when an event, job, etc. is created.
R AT I O N PAT H S If you have ever installed a Laravel package that needs a migration, it involves copying it’s migrations into the migration folder, but with Laravel 5.3 - a package can define its own migration path.