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Popular decentralized exchange (DEX) Uniswap has deployed its V3 core contracts to all Ethereum testnets ahead of of their 5 May mainnet launch, Uniswap said in a tweet on 21 April.

According to the announcement, the Uniswap V3 core and periphery smart contracts are already available on all popular Ethereum testnets, including Ropsten, Rinkeby, Kovan and Goerli. While the DEX did post the testnet addresses to Github, it warned its users they are not final and could all be changed in the future after the team updates the periphery repository.

Set to officially launch on the mainnet on 5 May, the Uniswap V3 upgrade will introduce a number of new features, including concentrated liquidity, which will aggregate individual positions into a single pool. The upgrade also comes with a multiple fee tiers system for liquidity providers that is separated into three tiers — 0.05%, 0.30% and 1.00% — and provides greater protection against impermanent losses.


The DEX first revealed details around its third iteration back on 23 March, when it also launched a bug bounty with rewards of up to $500,000 for the discovery of high severity bugs in the Uniswap V3 contracts. In order to be sure of the contract’s security, Uniswap V3 also underwent full audits from firms such as Trail of Bits and ABDK, and was tested with automated tools Echidna and Manticore.

Despite the platform attracting negative reviews in recent times, mainly due to its high gas fees, Uniswap has continued to attract high trading volumes, and is currently the number 3 platform on DeFi Pulse. On Tuesday the platform’s founder, Hayden Adams, revealed that Uniswap had reached the $10 billion weekly trading volume mark for the first time.

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