Polygon’s Proof-of-Stake (PoS) network is set for a significant consensus upgrade with the deployment of Heimdall v2 on July 10. Sandeep Nailwal, a co-founder of Polygon, highlighted this update as the most technically sophisticated hard fork since the network’s inception in 2020. The upgrade announcement was followed by a notable increase in the value of Polygon’s native token, POL, which saw a near 10% rise within a day, hitting a monthly high of around $0.20.

### Major Update for Polygon

The introduction of Heimdall v2 marks a departure from the original Heimdall client, enhancing the validator management system of Polygon and streamlining state synchronization between the Ethereum and Polygon PoS networks. This upgrade signifies a transition from the older Tendermint + CosmosSDK framework to the more recent CometBFT + CosmosSDK architecture. This change, tested successfully on the Amoy testnet on June 24, aims to eliminate the technical limitations of the previous Heimdall version, which was based on older frameworks.

Heimdall v2 is expected to significantly boost network performance, reducing finality time from 90 seconds to a mere 4–6 seconds and block times from about 5–6 seconds to approximately 2 seconds. These improvements promise to enhance the overall user experience considerably. Nailwal also mentioned that the upgrade would facilitate faster checkpoints, bolster bridging security, and set the stage for future network enhancements.

Despite the optimism, Nailwal cautioned about a potential three-hour delay in checkpoint finality during the transition and advised decentralized applications to adjust their confirmation thresholds to 256 blocks temporarily to mitigate the risk of rare chain reorganizations. The upgrade will transfer application data, balances, accounts, supply metrics, and historical milestones, though it will introduce a new chain ID and genesis block, leaving behind the blockchain history of Heimdall v1.

### Enhancing Transaction Capacity

The Heimdall v2 upgrade follows on the heels of the recent Bhilai hardfork on the Ethereum layer-2 network, which allowed the network to reach a new throughput of 1,000 transactions per second. Nailwal praised the Bhilai hardfork for its role in speeding up transactions on Polygon, facilitating faster on-chain payments, and supporting the next generation of real-world asset transactions. This upgrade also greatly benefits account abstraction efforts through Ethereum’s Pectra upgrade (EIP-7702).

Polygon’s commitment to advancing its network infrastructure with Heimdall v2 and the Bhilai hardfork underscores its dedication to improving scalability, security, and user experience, illustrating the vibrant development activity within the ecosystem.

“🚀 #Polygon is gearing up for a significant upgrade with Heimdall v2 on July 10, promising faster transactions and enhanced security. A leap forward for blockchain technology! 🔗 #Blockchain #Ethereum #TechUpdate”