Hyperliquid Testnet Launches ‘Stars’ Feature, Supporting HIP-3 DEX Whitelisted Transactions

July 27th, the Hyperliquid testnet recently introduced a new feature named "stars." This feature introduces an optional transaction address whitelist mechanism for the HIP-3 DEX, allowing deployers to restrict opening positions or adding to positions to only whitelisted addresses. Currently, the testnet whitelist has a maximum limit of 10,000 addresses, while unauthorized addresses can still deposit to the account and submit only reduction orders to close positions or decrease existing positions.

Community analysis believes that this feature is expected to expand the application scenarios of the HIP-3 DEX. For example, tokenized stocks, real-world assets (RWA), institutional indices, and other regulated products can use the address whitelist to restrict trading to users who have completed identity verification (KYC) or meet admission requirements. At the same time, new markets can first open testing to liquidity providers, partners, or community members to reduce the risk of initial market manipulation, wash trading, or malicious activities. The design allowing non-whitelisted users to continue reducing positions also prevents users from being unable to exit positions due to permission restrictions.

In addition, the "stars" feature does not change the permissionless nature of the Hyperliquid base layer, but rather adds an optional access control feature on top of it, which developers can enable or disable as needed. This means that scenarios such as DAOs, trading clubs, private funds, or partner-exclusive markets can build closed trading markets with admission mechanisms while maintaining the advantages of the Hyperliquid matching engine and settlement layer. Currently, this feature is still in the testnet phase, and the official team has not yet disclosed its specific use cases. Further confirmation of its application scenarios awaits the launch of the mainnet and more developer documentation.