On April 7th, the prediction platform on the Polymarket blockchain announced that over the next 2-3 weeks, it will conduct the "largest infrastructure upgrade since launch," including a complete overhaul of its matching system and the introduction of the native stablecoin Polymarket USD. This update will introduce a new smart contract system, CTF Exchange V2, optimizing matching logic and order structure to improve matching efficiency and reduce gas costs. Additionally, the platform will upgrade its (CLOB) central limit order book 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, replacing 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 upgrade, 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.