Overview
- Polymarket said Monday it will roll out a rebuilt trading stack over the next two to three weeks, with a short maintenance window that cancels all open orders and resets order books.
- A new collateral token called Polymarket USD will replace bridged USDC.e, stays backed 1:1 by USDC, and auto-wraps through the frontend for most users, while API traders must wrap via the Collateral Onramp contract.
- CTF Exchange V2 and a redesigned order book use off-chain matching with on-chain settlement to speed execution and lower gas costs, and the upgrade adds EIP‑1271 support so multisig and smart-contract wallets can trade directly.
- Developers and bot operators need to update SDKs in TypeScript, Python, or Go and re-sign orders using the new order format, with builder codes enabling on-chain attribution of order flow and at least a week’s notice promised before downtime.
- The push follows CFTC registration and major ICE backing as the platform courts U.S. institutions, while a POLY governance token remains planned without a launch date and recent controversies prompted new Market Integrity Rules.