Couchbase employs Transport Layer Security (TLS) to secure network communications, preventing unauthorized access and tampering, with the latest update to the Couchbase Autonomous Operator (CAO) 2.3 offering enhanced support for Kubernetes' tls secret type for certificate management. TLS ensures authentication, encryption, and integrity in data transmission, primarily used in HTTPS connections, with certificates issued by trusted Certificate Authorities (CAs) forming a chain of trust. The CAO 2.3 update improves interoperability with third-party certificate management systems by utilizing the Kubernetes TLS specification, allowing for consistent handling of TLS certificates and keys across different systems. This update also introduces trust pools in Couchbase Server 7.1, which permits validation of certificates against multiple CAs, offering flexibility in updating client certificates without requiring complete rotation. The separation of root CA certificates into distinct secrets further enhances integration with TLS management systems, facilitating seamless certificate generation and rotation.