Aave’s lending ecosystem recorded major deposit growth across two separate developments: Ether.fi’s liquid restaking token weETH surpassed $4 billion on Aave V3’s Ethereum market, becoming the protocol’s second-largest asset behind native ETH, while Aave V4 deposits crossed $1 billion around September 16-17 and reached about $1.16 billion. weETH deposits increased by roughly 129,800 tokens, worth more than $350 million, over 30 days, while V4’s expansion was supported partly by the Ether.fi Cash market on Optimism, which passed $300 million in deposits. V4 remains smaller than V3, whose deposits total approximately $31 billion, and reported figures vary between Aave’s interface and external aggregators such as DeFiLlama.