Overview
- Polymarket, which announced the plan Monday, set a two to three week window to deploy a rebuilt trading engine and a new Polymarket USD collateral token.
- The upgrade centers on a new central limit order book (CLOB v2) that uses fewer order fields, improves matching, and supports smart-wallet signatures.
- The migration will include a short maintenance window that clears all open orders, with at least one week of notice before the cutover.
- Most users will be converted in the app, while API and power traders must wrap USDC or USDC.e into Polymarket USD through the onramp contract to keep trading.
- Developers need to update to the new CLOB client, re-sign orders using the new struct, and follow migration guides the company says it will publish before launch.