Stacks network activates Clarity 4 smart contract language, adding six new Bitcoin-native DeFi development features

ChainCatcher news, the SIP-033 and SIP-034 proposals have been officially activated at Bitcoin block height 923222, and the Bitcoin smart contract layer Stacks has simultaneously launched the Clarity 4 smart contract language.

This upgrade introduces six core features for developers: on-chain contract code hash retrieval and verification, custom contract post-condition settings, simple value to ASCII string conversion, current block timestamp retrieval, secp256r1 signature verification (supporting native key integration), and a dimensional resource tenure extension mechanism. These features will lower the development threshold for native Bitcoin DeFi applications, help build safer and more flexible financial protocols, and further strengthen Stacks' positioning as the liquidity layer of the Bitcoin ecosystem. All Stacks transactions are settled on the Bitcoin chain and rely on the transfer proof mechanism to obtain Bitcoin network security guarantees.