11 November: Buybacks, Single-Sided Liquidity, and Smarter Types SDK Upgrades

What’s New

  • BuyBack Manager System Deploy automated buyback managers via deployBuyBackManager() to route trading fees into Group Coin demand. Includes support for Base mainnet + Sepolia.

  • Single-Sided Coin Liquidity New getSingleSidedCoinAddLiquidityCalls() lets creators bootstrap liquidity from current price to ∞ using only their coin—no ETH needed. Position auto-sells into ETH as price rises.

  • Atomic Import + Liquidity getImportAndSingleSidedCoinAddLiquidityCalls() enables batched coin import and liquidity provisioning in a single transaction. Accepts either initialMarketCapUSD or initialPriceUSD for flexible pricing setups.

  • Enhanced TypeScript DX Added Flatten<T> utility type, overloads for liquidity methods, and refined param types (ImportAndSingleSidedCoinAddLiquidityWithMarketCap, etc.) for better IntelliSense and type safety.

Fixes & Improvements

  • Math Safety: Patched division-by-zero edge cases in v4 liquidity math (e.g., maxLiquidityForAmount0Precise()) for stability on uninitialized or degenerate pools.

  • Liquidity Param Flexibility: Single-sided liquidity functions now support both pricing input styles—initialMarketCapUSDor initialPriceUSD.

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