OPSWAT is committed to making the Metadefender Core API backward compatible to any older version of Metadefender Core. With the growing capabilities and features of Metadefender Core, it is necessary to add new APIs, new COM Connection Points, and new return types. When you upgrade your integration to Metadefender Core to a newer version, please keep the following factors in mind:
COM API integration in C/C++: By the design of COM, all Connection Points are required to be implemented in your application. Please check Metascan.idl for newly added Connection Points.
Beginning with Metascan 3.8.1, OPSWAT supports only using the JSON-based (v2) REST API and XML-based (v1) REST API is deprecated.