Couchbase Developer Advocates Matthew Revell and Laurent Doguin, along with engineers Marty Schoch, Dave Rigby, and Simon Baslé, discuss the new features in the Couchbase Server 4.5 Developer Preview. The session highlights the introduction of a sub-document API and a preview of Couchbase's free-text search capabilities. This interactive hangout provides insights into the advancements offered in the latest version of the Couchbase Server, engaging the expertise of the Couchbase team to explore these developments in detail.