Polygon POS has undergone major performance upgrades with the release of Heimdall V2 on Amoy TestNet.
Heimdall V2 is a modernized, improved consensus client at the heart of the Polygon POS network. Like previous versions of Heimdall, it manages validators, selects block producers, promotes spans, coordinates the state synchronization mechanism between Ethereum and polygon POS, and addresses other important aspects of the system. It relies on a fork of the Cosmos SDK based on V0.50.13 and a fork of CometBFT based on V0.38.17 for its consensus.
Polygon pos heimdall v.2 migration: Released on Amoy Testnet.
Improvements
PIP-62: Transition from Heimdall v.1 to V.2 Genesis Data imported
PIP-43: Upgrade the consensus layer with CometBFT to streamline transaction processing, improve state synchronization, and allow more…– Polygon Foundation (@0xpolygonfdn) June 27, 2025
The Heimdall V.2 migration allows for faster finality (90 to 5 seconds), improved consensus, and cutting-edge security and performance.
The Polygon Pos Heimdall V.2 release on Amoy TestNet marks the start of a long-standing Heimdall V1-V2 migration. This includes improvements such as PIP-62, which moves from Heimdall v.1 to V.2. PIP-43 upgrades the consensus layer with CometBFT to streamline transaction processing, improve state synchronization, and allow for more efficient handling of external data. PIP-44 refactors to upgrade dependencies to the Cosmos SDK.
The next step is to start up on MainNet within 1-2 weeks.
Polygon Roadmap 100,000 TPS
At the beginning of June, Polygon announced its roadmap at 100,000 TP. The polygon is scheduled to go to “Gigaga” (100,000 TPS) and is essentially scalable to accelerate on-chain global financial transactions.
Polygon aims to achieve 1,000 TP by July, minimizing transactional minimums to around 5 seconds, and stabilizes gas prices.
Polygon promises to expand to over 5,000 TPS by October 2025. Aggregator integration for seamless cross-chain fluidity, 1 second block time, and re-ogle brings instant finality and 5,000 TP in a Devnet environment.
The first milestone is expected to arrive in early July, with an upgrade that will bring the polygon to 1000 TPS and 5S finality.