Historical retrospective · DeFi
Uniswap v2 expanded token-pair routing and flash swaps
Uniswap v2 added direct token pairs, oracle improvements and flash swaps that let contracts receive assets and repay within one transaction.
The design enabled composable applications to build more complex operations around a single atomic transaction.
The release helped make DEX liquidity a reusable building block across DeFi.
Atomicity limits some settlement risk but does not protect against bad pricing, faulty integrations or malicious contracts.
Primary source
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