V2 (Mainnet Version)

Outrun AMM V2 remains a Constant Product AMM, but we will continue to make improvements to Outrun AMM V1. These improvements are inspired by Uniswap V4. However, Uniswap V4's AMM model is a Concentrated Liquidity AMM, which is not friendly to long-tail assets. Therefore, Outrun AMM V2 will introduce the following main improvements based on the Constant Product AMM：

  1. Architecture Optimization

    • Singleton Pool: V2 will introduce a singleton pattern, where all liquidity pools are integrated into a single smart contract (PoolManager), rather than deploying each pool as an independent contract as in V1. This design significantly reduces the gas costs associated with creating pools and executing trades.

    • Flash Accounting: This feature allows users to complete multiple transactions within a single trade and settle them all at once, reducing gas consumption from intermediate steps.

  2. Hooks Functionality

    • V2 will introduce Hooks, which allow developers to execute custom code before and after trades. This supports features such as limit orders, dynamic fee adjustments, and automated liquidity strategies.

  3. Fee Management

    • Dynamic Fee Adjustment: V2 allows liquidity pools to customize their fee structures, rather than being limited to the fixed rates in V1.

    • Fee Reinvestment: When adding liquidity, fee income can be directly converted into additional liquidity. When removing liquidity, unclaimed fees will be automatically withdrawn.

  4. Enhanced User Experience

    • Native ETH Support: V2 allows direct trading with native ETH, eliminating the need for Wrapped ETH (WETH) and simplifying the trading process.

    • Liquidity Salt: When creating liquidity, the salt parameter can be used to distinguish between different positions in the same pool, facilitating the management of multiple liquidity positions by funds and other institutions.

  5. Performance Optimization

    • Code Optimization: V2 has undergone extensive code optimization, such as using branchless functions and inline assembly to reduce gas consumption.

    • Transient Storage: By leveraging Ethereum’s transient storage mechanism, temporary data is only stored within a single transaction, further reducing gas costs.

Since Outrun AMM V2 includes all the features of V1, when we launch on the mainnet, we will directly deploy V2 and skip V1. V1 will only be used as a beta version for internal testing.

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