Polymarket Is Replacing Its Seven-Year-Old Infrastructure: What Changes on November 2?

With Protocol V2 replacing the infrastructure it has used since 2019, Polymarket aims to bring different market types together in a shared system and complete its mainnet migration on November 2.

According to an announcement reported by Wu Blockchain, Polymarket Protocol Lead Rajath Alex introduced a new version that rebuilds the platform’s core smart contract architecture. The system, which will replace the old Gnosis CTF-based structure, aims to reduce the architectural complexity that has accumulated over time.

Different markets will share the same infrastructure

Protocol V2 will use a single ERC-1155 contract for tokens representing users’ positions in markets, pUSD as collateral, and shared trading infrastructure. This is intended to allow different market types to operate on the same foundation.

In addition to two-outcome markets, the new structure will support market types that handle linked outcomes and combine different outcomes. The modular design aims to make it easier to add new trading formats and help capital be used more efficiently.

Data sources that verify market outcomes will also be brought together in a shared system. Supporting integrations with UMA and Chainlink, this structure will also allow other verification sources to be added in the future.

Limited testing first, followed by the mainnet migration

According to the announced schedule, testing will be conducted with limited trial markets from October 5-30. The target date for the full mainnet migration is November 2; the new Rust-based Data API V2 will also roll out as part of the migration.

The protocol is designed to support the transfer of positions, collateral, and outcome data across different blockchains. Enabling these features will depend on a later multichain phase.

The announcement stated that the new version underwent formal verification by Certora and was subject to extensive security audits. There is also a $5 million bug bounty program for reporting vulnerabilities.