This article captures some of the high-level changes (terminology, features, and concepts) that have changed (or will be changing) in Aurora from Community Classic.
Terminology changes
For Auro...
teavirdis While GraphQL APIs is the preferred way for the future, the REST v1/v2 APIs would continue to be supported for now. The plan is to eventually deprecate REST v1/v2, but the EoL date is TBD at this time.