TechFlow news: Uniswap Labs has released two new smart contracts—Permit2, a token approval contract, and Universal Router, an integrated general-purpose router. Both Permit2 and Universal Router are non-upgradable, permissionless open-source contracts that have been deployed to Ethereum, Optimism, Arbitrum, Polygon, and Celo.
According to the announcement, Permit2 enables sharing and managing tokens across different smart contracts, while Universal Router integrates swaps of ERC20 tokens and NFTs into a single universal routing contract. Uniswap Labs is now running separate bug bounty programs for both contracts to ensure they meet the highest security standards.Original link
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