These libraries have been updated:

The public API CoreMedia class CacheMapWrapper , used for the dataloader cache was revoked due to breaking changes in the dataloader API. The dataloader cache is now created using the updated dataloader API only. (see CaasConfig)

Since version 17.0, GraphQL Java checks the syntax of the schema more strictly. Types implementing from 2 or more interfaces, now have to use an "&" character (instead of a comma) to enumerate interfaces. If the schema was customized, the schema should be checked for potential breaking changes in the used syntax.

For details see the original release notes:

(CMS-20151)