Hyperliquid announced the official launch of HIP-4 on the testnet on March 11, introducing the first batch of cyclical binary options markets based on HyperCore's spot prices. The contract is fully collateralized, featuring nonlinear payoffs and expiration characteristics. Future plans include launching one-day expiration markets for BTC and HYPE, as well as multi-outcome markets. The network upgrade will expand the scope of portfolio margin applicability and set limits on the supply and lending of USDH.