On April 7th, the blockchain prediction platform Polymarket announced that over the next 2-3 weeks, it will conduct the "largest infrastructure update since launch," including a complete overhaul of its matching system and the introduction of its native stablecoin Polymarket USD. This update will introduce a new smart contract system, CTF Exchange V2, which optimizes matching logic and order structure, improving matching efficiency and reducing gas costs. Additionally, the platform will upgrade its Central Limit Order Book (CLOB) to a hybrid off-chain order matching and on-chain settlement model. In terms of assets, Polymarket will launch its native stablecoin Polymarket USD, pegged 1:1 to USDC, to replace the previous cross-chain version USDC.e on Polygon, enhancing asset security and consistency. Moreover, the platform will support the EIP-1271 standard, allowing multi-signature wallets (such as Safe) to participate directly in trading, further expanding capabilities for institutions and advanced users. Polymarket stated that the existing order book will be cleared during the update, with specific maintenance times to be announced one week in advance. This update comes amid increasing competition in the prediction sector, as the platform accelerates performance improvements and user experience enhancements.