Version 6.5 of Couchbase has introduced significant enhancements to its backup and restore technology, focusing on improved performance, storage efficiency, and consistency. Key updates include leveraging server-side value compression, changing the storage engine and format, and isolating metadata, resulting in a ~4x improvement in backup performance and a reduction in required storage to about 40% of the original dataset size. The new version also features a developer preview of an "info" command for detailed backup file listings and consistency measurement tools that address the distributed nature of Couchbase. Additional improvements encompass support for alternative addresses, automatic bucket creation during restores, and enhanced error messaging. For more comprehensive details, users are encouraged to consult the full documentation and release notes.