The text discusses implementing version control for documents in a Couchbase database, allowing existing applications to access and manipulate multiple versions of a document without impacting the core code. A simple yet effective approach is proposed, where new versions are created by copying existing documents with incremented version numbers, and views need to be updated to only return current versions. The implementation involves creating a `CouchbaseClientWithVersioning` class that extends the standard Couchbase client, allowing users to set, get, and delete specific versions of a document, as well as access all available versions. This approach can provide version control with minimal code changes, making it suitable for various use cases, including JSON documents and other values. However, it also introduces additional database operations and management considerations.