Version 8 UUIDs offer a customizable format for unique identifiers. They allow the inclusion of arbitrary data fields specified by the user. This version is defined by the UUIDv8 draft standard and is still evolving. It caters to applications needing specific, user-defined metadata within the UUID. This flexibility makes them highly adaptable to various use cases, allowing developers to encode specific information directly within the UUID while still ensuring global uniqueness. Version 8 UUIDs represent an evolution towards more specialized and adaptable unique identifiers in modern systems.