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Polymarket
2026-10-06 02:24:26

Polymarket launches Protocol V2 with single ERC1155 position contract replacing legacy Gnosis framework

Polymarket has rolled out Protocol V2, a full rebuild of the smart contract infrastructure behind its prediction market platform and the first such overhaul since the protocol was built in-house. Announced by Polymarket protocol lead Rajath Alex on Oct. 6 via X, the new version replaces the older Gnosis Conditional Tokens Framework from 2019 with a single ERC1155 position contract. The redesign also unifies pUSD collateral, exchange execution, and routing under one architecture. According to the announcement, the previous system required extra adapters whenever a new market type was added, including separate components for pUSD, wrapped collateral for negative-risk positions, a second exchange, and even individual UMA modules tied to each adapter. Protocol V2 removes that layered setup by embedding market type, market identity, and outcome data directly into each position ID, allowing the protocol to read that data without auxiliary query contracts. The first release supports binary, atomic negative risk, incremental negative risk, and parlay markets. Polymarket also made cross-chain bridging a native feature in V2, covering positions, collateral, and resolution transport across chains, though it has not disclosed a launch date for multichain deployment. The protocol includes a new OracleAggregator compatible with UMA and Chainlink, has undergone audits by multiple firms including Certora formal verification, and carries a bug bounty of up to $5 million for critical issues.

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Polymarket launches Protocol V2 with single ERC1155 position contract replacing legacy Gnosis framework
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