I have a few legacy entities that I want to change from SERIALIZED_ARRAY to JSON_ARRAY. Is it as simple as just changing the entity property type or do you have to do something with the saved data in the database? Thanks.
The return type is \XF\AddOn\StepResult|array|true|null. Returning false will error, and don't mark the return type as ?array for php 7.1 type hinting or it'll error.