Uniswap v2 Launch event

Event · PageRank 0.0008

Overview

Uniswap v2 was announced on March 23, 2020 and deployed to Ethereum mainnet on May 18, 2020. Its headline change was support for arbitrary ERC20/ERC20 pairs, removing v1's requirement that every pool be paired against ETH and allowing direct pairs such as DAI/USDC. It also added manipulation-resistant on-chain price oracles based on time-weighted average prices, flash swaps that let anyone withdraw tokens with no upfront cost provided they are repaid within the same transaction, and a split of the protocol into a minimal security-focused core with separate helper and router contracts. Flash swaps alone accounted for $4.8 billion of volume and $14.4 million in LP fees by the end of 2020.

Within the DeFi Intel graph, Uniswap v2 Launch connects to 1 tracked entity, most strongly to Uniswap.

Relations

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Frequently asked questions

When did Uniswap v2 go live?

It was announced on March 23, 2020 and deployed to Ethereum mainnet on May 18, 2020.

What were the main new features?

Arbitrary ERC20/ERC20 pairs, time-weighted average price oracles, flash swaps, and a core/helper contract architecture that separated security-critical code from user-facing routing.

What is a flash swap?

A flash swap lets a user withdraw ERC20 tokens from a pool with no upfront cost and perform arbitrary actions, as long as equivalent value plus fees is returned before the transaction ends.