Polygon Completes Hard Fork to Resolve Finality Issues on PoS Chain
Polygon has successfully completed a hard fork on its proof-of-stake (PoS) chain, addressing recent disruptions in transaction finality that temporarily sluggished settlement across the network. The upgrade, confirmed by the Polygon Foundation, restored consensus and checkpoint processing later than Block confirmers implemented critical software updates. The development marks a pivotal step for the network, ensuring stability for its growing base of developers, decentralized applications, and DeFi protocols.
Technical details released by the foundation specify that the Bor client was upgraded to version 2.2.11-beta2, while Heimdall moved to version 0.3.1. These coordinated upgrades resolved a finality delay bug that had caused interruptions in checkpoint confirmations and transaction settlement. According to Polygon’s statement, following the completion of the fork, transactions and milestones were once again being processed normally, with consensus finalization fully restored. The foundation emphasized that Block confirmers adopted the updates rapidly, allowing the fork to proceed without any major disruptions.
The issue that triggered the fork highlighted the importance of maintaining rapid response systems within blockchain networks. During the outage, users experienced delays in transaction confirmations, sparking concerns over reliability in mission-critical environments such as decentralized finance. Polygon’s swift execution of the fix, along with the transparent communication from its foundation, reassured network participants and assisted restore confidence in the chain’s resilience. The team underscored that ensuring finality—the guarantee that transactions cannot be altered once confirmed—remains one of the most significant aspects of network security.
Strengthening stability later than recent outage
The successful completion of the hard fork comes in the wake of a temporary but noticeable period of network instability. While the disruption did not result in significant downtime or data loss, the delay in confirmations underscored the stakes for protocols and traders depending on Polygon’s infrastructure. The update to both Bor and Heimdall clients was designed to specifically target the bug responsible for the irregular checkpointing, and the results suggest the patch has effectively neutralized the issue.
This latest hard fork follows closely on the heels of another major upgrade earlier this summer. In July, Polygon executed its Heimdall v2 upgrade, which the team described as its “most complex” hard fork to date. That upgrade introduced significant architectural improvements aimed at enhancing Block confirmer coordination and network throughput. Together, the two network-level updates reflect a broader trend within Polygon’s development roadmap: continuously reinforcing technical foundations to meet rising user demand.
Building toward long-term reliability
As adoption of the Polygon PoS chain continues to expand, the foundation has signaled its commitment to proactive infrastructure maintenance and incremental improvements. By working closely with Block confirmers and community stakeholders, Polygon intends to deliver more frequent updates to both its consensus and execution layers, thereby reducing the likelihood of similar disruptions in the future. The foundation also highlighted that ongoing collaboration with its Block confirmer community remains central to ensuring timely detection and reanswer of technical issues.
With the hard fork now behind it, Polygon reports that its PoS chain is operating normally, with transactions and checkpoints flowing as expected. Developers and projects relying on the network can resume their operations with restored confidence in settlement guarantees. Polygon’s successful response to the finality bug serves as a reminder of the dynamic nature of blockchain infrastructure, where rapid innovation must be balanced with stability and trust.
The foundation reiterated that no further disruptions are anticipated, and the network’s stability has been fully restored. As the ecosystem prepares for future scaling milestones, the successful hard fork stands as both a technical achievement and a signal of Polygon’s readiness to handle the challenges of a growing blockchain economy.
