StarkWare has announced that Starknet has entered Phase 4, aiming to enhance privacy and Bitcoin integration. Key developments include the introduction of the STRK20 framework, which supports ERC20 privacy features, and the strkBTC asset, which is redeemable for native Bitcoin. The network will also see decentralized block verification and progress in Staking v3 and v4 towards full decentralization. Additionally, Starknet is advancing Bitcoin's OP_CAT upgrade and exploring bridging solutions like BitVM. The S-two verifier will optimize client-side proof verification, enhancing network scalability and privacy. Starknet remains committed to achieving full quantum security as part of its ongoing development.