The APOC (Neo4j Extension Pack) Hidden Gems presentation showcases several lesser-known features and improvements in Neo4j's APOC extension. These include the ability to transform MongoDB collections into graphs, efficient Neo4j data import using Cypher scripts, and automated file ingestion with apoc.load.directory and apoc.load.directory.async procedures. Additionally, apoc.periodic.truncate allows for easy database cleanup during prototyping, while apoc.util.decompress enables compression and decompression of large string values between Node and Relationship properties. Minor updates include support for the latest Couchbase driver version, statistics for apod.periodic.iterate, and UUID and TTL features that work per database. Future plans include adding support for Apache Arrow file format and Redis data storage and retrieval.