Uniswap links trading fees to UNI burns, fee collection begins on Arc

Arc: Arc is a Layer 1 blockchain developed by Circle, with mainnet launch in September 2026, designed for financial markets, real-time money movement, and agentic economic activity. Uniswap v2, v3, v4, and UniswapX were deployed on Arc at launch. Protocol fee collection for Uniswap on Arc was enabled in early October 2026 through governance-driven configuration updates. Uniswap: Uniswap is the leading decentralized exchange protocol operating across multiple blockchains with versions including v2, v3, and v4. It has activated a protocol fee switch that directs a portion of trading fees toward a mechanism for burning UNI tokens. The protocol recently extended fee collection infrastructure to new chains, including Arc, following governance proposals in September 2026. Burn Mechanism: Fees collected via the protocol fee switch accumulate in TokenJar contracts on each chain, after which searchers can claim them by burning UNI tokens on mainnet. Deployment Timing: Fee collection configuration on Arc was completed on October 5, 2026, as part of the broader rollout that now covers multiple networks. Fee Switch Expansion: Uniswap governance has extended its protocol fee collection and UNI burn infrastructure to additional chains beyond Ethereum mainnet through a series of proposals and executions.