Aave has begun the phased rollout of its V4 protocol, introducing a dual-layer isolated market architecture. This new structure, announced by Aave founder Stani Kulechov, separates collateral into independent Hubs, each containing Spokes that share liquidity and apply selective cap controls. The initial launch includes three Hubs: Prime, Core, and Plus, with plans for additional Hubs in the future. The phased approach is designed to closely monitor performance and risk parameters under this innovative architecture, ensuring stability and efficiency as the system expands. This strategic rollout reflects Aave's commitment to enhancing its decentralized finance offerings while managing risk effectively.