[World Releases World ID v4.0, Introducing Account Abstraction and Multi-Key Support] Odaily Planet Daily reports that World (formerly Worldcoin) has announced the release of World ID v4.0, introducing an account abstraction framework into its protocol system. This upgrade transitions World ID from a single-key mechanism to an abstract record in the public registry 'WorldIDRegistry' and supports multiple authorized keys, allowing users to generate authentication proofs on different devices or platforms. World stated that the core improvements in the new version include: - Support for multi-key and multi-verifier management, enhancing flexibility while maintaining the same identity; - Strengthening protocol resilience by introducing key rotation, revocation, and optional recovery agent mechanisms; - Launching a web-based reference verifier to simplify browser-side experiences; - Enhancing privacy protection by generating one-time nullifiers through OPRF nodes; - Adding a trusted party registry to help verifiers identify request sources, prevent phishing attacks, and lay the groundwork for introducing protocol fee mechanisms in the future.