Polymarket is set to take its exchange offline for approximately one hour on April 22 to implement its V2 upgrade. According to NS3.AI, this update will replace the existing V1 trading contracts, order book, and collateral system. The new version will introduce pUSD as the platform's settlement asset on Polygon, replacing USDC.e. During the transition, all open limit orders will be canceled, but funds and existing positions will remain secure and unaffected.