Polygon Launches Heimdall V2 Upgrade Reducing Transaction Finality to 5 Seconds

Polygon, a leading blockchain scaling solution, has successfully launched Heimdall V2, a significant upgrade to its consensus layer. This hard fork, implemented on July 10, 2025, is Polygon's most substantial since 2020. The primary goal of Heimdall V2 is to enhance the network's efficiency and security by reducing transaction finality to approximately five seconds, a notable improvement from the previous confirmation times.

This upgrade also addresses the issue of deep reorgs, where a significant portion of the blockchain's history is rewritten. By eliminating this problem, Polygon aims to provide a more stable and reliable platform for its users. The launch of Heimdall V2 is a crucial step in Polygon's roadmap towards achieving a target of 5,000 transactions per second, demonstrating the network's commitment to scaling and supporting a larger number of users and applications.

Sandeep, the CEO of the Polygon Foundation, announced the launch of Heimdall V2, highlighting its importance in enhancing the overall performance and security of the Polygon network. The successful implementation of this upgrade is expected to pave the way for further innovations and improvements within the Polygon ecosystem. This move is part of Polygon's ongoing efforts to stay at the forefront of blockchain technology and provide a robust platform for decentralized applications (dApps) and other blockchain-based solutions.

The market has responded positively to the Polygon Heimdall V2 upgrade, with the new Polygon token, POL, experiencing a surge of over 6% before the upgrade. This excitement surrounding the upgrade reflects the anticipation and confidence in Polygon's ability to deliver on its promises of enhanced performance and security.