Uniswap v4 is here – The new era of DeFi
Uniswap, the leading decentralized exchange protocol, has just launched its fourth version (Uniswap v4), marking a new era for decentralized finance (DeFi).
2/1/20252 min read


After code contributions from hundreds of community members, nine independent audits, the largest security contest in history, and a $15.5 million bug bounty – Uniswap v4 is now live.
Uniswap v4 follows v2 and v3, which have processed over $2.75 trillion in trading volume, with no hacks. This latest version is the most customizable and lowest cost version of the Uniswap Protocol. It is currently live on Ethereum, Polygon, Arbitrum, OP Mainnet, Base, BNB Chain, Blast, World Chain, Avalanche, and Zora Network.
Users can provide liquidity on Uniswap v4 via the Uniswap web app and the swap feature will be rolled out in the coming days on the web and wallet as liquidity moves to v4.
Highly customizable DeFi development platform
Uniswap v4 transforms the protocol into a development platform with unlimited customization through the introduction of “hooks” – modular plugins that allow developers to build custom logic for pools, swaps, fees, and liquidity provider (LP) positions.
Over 150 hooks have been developed, introducing everything from dynamic fees to automated liquidity management. Allowing developers to build and test directly on the protocol speeds up development cycles and increases integration. The proliferation of hooks drives deeper liquidity and more swaps, strengthening the network effect around the Uniswap Protocol.
The Most Cost-Effective Version of the Uniswap Protocol
In addition to customization, Uniswap v4 offers gas savings for both traders and LPs. Creating new pools with v4 is up to 99.99% cheaper than previous versions, and traders can expect gas savings on multi-hop swaps. Native ETH support brings additional significant savings for ETH pairs.
Open construction, with rigorous audits
Uniswap v2 and v3 have processed over 465 million swaps without any hacks or exploits. Uniswap v4 is built with the same commitment to transparency and security, and we have set out to make it one of the most audited codebases ever deployed on-chain.
Since the announcement of v4, Uniswap Labs has made the source code of all contracts public and welcomed hundreds of pull requests from the community. The v4 source code has undergone extensive reviews, including nine independent audits, a $2.35 million security contest with over 500 participants, and the largest bug bounty program in history, offering up to $15.5 million for any critical bugs in v4.
How to access v4 via web app and Uniswap wallet
Uniswap v4 is now live on 10 chains and available across all Uniswap Labs products. Users can provide liquidity on Uniswap v4 via the Uniswap web app, and swap trading functionality will be rolled out in the coming days on web and wallets as liquidity migrates to v4.
The launch of Uniswap v4 marks a major step forward in providing a more customizable and efficient DeFi platform that promises to bring huge benefits to both developers and users in the decentralized finance ecosystem.
Source: Uniswap blog
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