Aave has launched its V4 protocol on Ethereum, introducing a new hub-and-spoke structure intended to change how risk is managed in DeFi lending. Under the model, a central liquidity pool known as the Hub connects to separate lending markets, or spokes, each of which operates with limits set through governance.
That design allows governance to cap risk at the level of an individual product rather than exposing the whole system to a single failure. Not all spokes are active immediately, and new markets will go live only after governance approval, adding a controlled rollout process to the upgrade.
The protocol is also designed to support more complex assets than earlier versions, including real-world loans and structured credit products alongside standard crypto collateral. Borrowers taking on riskier exposures will face higher rates, a pricing mechanism aimed at protecting the core pool rather than maximising growth.
The launch is notable not because it expands quickly, but because it expands cautiously. At a time when exploit risk and fragile confidence are both in focus, Aave is signalling that tighter controls and slower activation are becoming central to how major DeFi platforms seek long-term trust.