IoTeX Blockchain Upgrade: v2.2 Hard Fork and Optimistic Consensus

IoTeX, the Layer-1 blockchain designed for real-world decentralized applications, has successfully implemented its v2.2 hard fork at block height 36,893,881 on June 19. This upgrade introduces sub-three-second transaction finality, catering to latency-sensitive use cases such as on-chain AI agents, real-time DePIN networks, and event-driven DeFi. The reduction in block time to 2.5 seconds enhances user experience, enabling AI agents to trigger actions instantly, DePIN apps to sync with real-world events, and DeFi users to settle trades responsively. This low-latency experience is now available on a decentralized Layer 1, showcasing IoTeX’s commitment to scalability without compromising security.
IIP-42: Optimistic Consensus for Enhanced Throughput
The v2.2 upgrade includes deep enhancements to IoTeX’s Roll-DPoS consensus, featuring Optimistic Block Minting introduced via IIP-42. This mechanism allows block proposers to prepare the next block concurrently, boosting throughput and resilience. Innovations like proactive block preparation, fast fallback logic, and strict time-bound minting ensure smooth network operation under high loads while maintaining decentralization. Additionally, IoTeX introduces a timestamp-based staking contract (v3) for improved accuracy and adaptability, encouraging users to migrate for a smarter staking experience.
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