The testnet rollout highlights a new Stars feature and address whitelist support for HIP-3 builder-deployed perpetuals, though key implementation details and any path to mainnet remain unconfirmed.
Hyperliquid’s testnet has rolled out a new feature called “stars” for HIP-3 DEX that lets operators use an optional whitelist of trading addresses, currently limited to 10,000 entries. Addresses that are not approved can still deposit funds and place reduce-only orders, meaning they can cut exposure but not freely open new positions. The latest update also frames Stars and HIP-3 DEX address whitelist support as builder tooling for testnet deployments, with developer resources and in-app announcements serving as the main reference points. HIP-3 is described in Hyperliquid documentation as a framework for builder-deployed perpetual markets, and the whitelist mechanism may help deployers control access during testing or staged rollouts. Community commentary said the mechanism could help enable KYC-gated markets, including tokenized stocks, RWA (real-world assets on-chain), institutional indexes and other regulated products. A production timeline and fuller technical parameters have not been confirmed.