What happened
Polymarket confirmed a Nov. 2 cutover to Protocol V2 for all newly created markets, Crypto. News reported Monday.
The upgrade introduces pUSD, a native accounting unit that replaces direct USDC collateral at the contract layer, and swaps the single-oracle model for a modular oracle stack that can route disputes to different resolution venues. A $5 million bug bounty, one of the largest standing programs in prediction markets, is already open to researchers. The team ran the design through a sequence of smaller canary markets before setting the date, letting the contracts face real order flow without betting the whole book on an untested path.
V1 markets created before Nov. 2 will continue to clear under the current ruleset until they expire naturally.
Why it matters
Polymarket is the dominant venue for on-chain prediction markets, and the V1 stack has carried it through a US election cycle, a sports season, and a procession of oracle disputes. V2 is the first structural rewrite since that growth. The pUSD layer matters because it lets Polymarket decouple user-facing collateral from whichever stablecoin or yield-bearing asset sits underneath, giving the team room to add treasury-backed yield or multi-stable routing without touching market contracts.
Modular oracles are the bigger story. Oracle resolution has been Polymarket's single largest attack surface, and the Ukraine suit case and the Barron Trump market both put UMA's optimistic oracle under public pressure. A modular stack means a given market can specify its own resolver, which pushes the design closer to a venue-of-venues than a monoculture.
Market impact
The headline looks bullish for Polymarket's moat. The flow picture is quieter. Prediction-market volume has cooled from the 2024 election peaks, and the V2 switch adds friction for market creators who now need to understand oracle selection and pUSD mechanics before deploying.