Planet News: Zero-knowledge proof software developer RISC Zero announced the launch of the OP Kailua Validity Mode, enabling OP Rollup to upgrade to ZK Rollup without requiring extensive technical modifications, achieving higher security and faster settlement times. This mode eliminates fraud disputes, ensures transaction finality within 1 hour, and provides stronger security guarantees compared to traditional fraud proofs, and has been adapted for the second stage of decentralized deployment. Additionally, Validity Mode is cost-effective and suitable for high-throughput OP chains. Meanwhile, Kailua also offers a Hybrid Mode, allowing OP Rollup to introduce ZK fraud proofs, enhancing security with lower margin requirements and faster dispute resolution. Currently, multiple Rollup projects such as BOB and Eclipse have begun integrating OP Kailua, gradually transitioning to ZK.