Swaps using Uniswap v4's Aggregator Hooks feature block-refreshed price quotes, atomic single-transaction settlement, and preserve existing token approvals

From the articleUniswap Turns v4 Into an Aggregator, Sending Fees From Outside Liquidity to UNI Burn - UnchainedAlso in Uniswap adds seven trading sources as 0x disputes its protection from malicious hooks, Uniswap v4 Is Now an Aggregator, DeFi Giant Uniswap Taps 7 Rival Liquidity Sources to Burn UNI Tokens