At present, Aave is a leading player in the Ethereum lending field and firmly holds a leading position. Aave focused on the demand for DeFi leverage arbitrage in the bull market that began at the end of 2023, with significant growth in lending business data. It turned losses into profits in 2024 and maintained momentum until the first half of 2025. In addition, Aave has also achieved remarkable results in deploying multi chain liquidity through Portals, becoming the DeFi project with the highest lock up volume on multiple chains such as Arbitrarum, Polygon, Avalanche, Optimism, etc. Now that the Aave V4 is expected to be launched within the year, will the throne be more secure?! Aave has maintained a large iteration cycle of 2-3 years for its products, and the main version currently running is still V3. However, from the proposal of the development team in 2024, we have glimpsed the prototype of Aave V4, which is a unified modular liquidity layer. Aave V4 adopts a new architecture of hub&spoke, enhancing modularity, reducing governance costs, and optimizing financial efficiency. Aave V4 will rely more on on on chain smart contracts to automatically and dynamically adjust based on market environment (interest rates, risk parameters, asset lists, financial management, etc. will no longer be adjusted by governance), introduce chain abstraction concepts to enhance user experience, integrate GHO stablecoins more deeply into the ecosystem, and also introduce new risk management tools and more efficient clearing engines. In the long run, once the design of Aave V4 is truly implemented, various parameters that dynamically and automatically adapt to the market environment, as well as the interconnected multi chain liquidity, may once again help Aave leverage its technological and liquidity advantages with other lending agreements.