Uniswap rolls out v4 aggregator hooks on mainnet, Base and Robinhood Chain

• —Seven external liquidity sources live at launch, covering over 90% of DEX activity on the three chains
• —Swaps routed through aggregator pools pay protocol fees that contribute to UNI burn
• —Uniswap says v4 is the largest DEX by volume, with more than $4.5 trillion swapped
• —Routing combines native v4 pools and outside venues while settling in a single transaction