Gate News message: On April 7, StarkWare announced that Starknet has officially entered its fourth phase, aiming to enable a faster, more decentralized, and more private network, while also strengthening its connection with Bitcoin. Highlights of this phase include: the STRK20 framework that supports ERC20 privacy features, and the strkBTC asset that offers redeemable native Bitcoin, providing privacy transaction options; Starknet v0.15.0 will introduce decentralized block verification; Staking v3 and v4 will gradually achieve the network’s full decentralization. In addition, Starknet is also advancing Bitcoin’s OP_CAT upgrade to enable trustless settlement, and is researching more Bitcoin bridging solutions (such as BitVM and ColliderVM) to promote the development of Bitcoin DeFi. Meanwhile, the S-two verifier will further optimize client proof verification, driving network expansion and privacy protection. Starknet is also committed to achieving comprehensive quantum security, preparing for the post–quantum computing era for blockchains and Bitcoin.