Polymarket will be undergoing a V2 exchange upgrade on April 28th, with an estimated downtime of approximately one hour.

CoinFeed reported on April 27th that, according to an announcement from the Polymarket development team, Polymarket will undergo a V2 exchange upgrade on April 28th at 19:00 (UTC+8), with an estimated downtime of approximately one hour. After the upgrade, the v1 order book will be cleared, and all unfilled limit orders will be cancelled, ensuring the safety of user funds and positions. Users trading via the API need to upgrade to the latest SDK; the v1 client will cease functioning after the switch.