
On-chain voting runs July 19 to July 26 on measures to add Robinhood Chain v2 and v3 fees and extend the UNI burn system to selected Uniswap v4 pools.
Uniswap governance is preparing final on-chain votes on proposals to expand protocol fee collection and route the proceeds into the UNI burn mechanism, with voting scheduled from July 19 through July 26. One proposal would activate protocol fees for Uniswap v2 and v3 on Robinhood Chain, while another would turn on fees for selected Uniswap v4 pool categories on Ethereum, Arbitrum, Base, BNB Chain, Polygon, Optimism and Robinhood Chain. A separate v4 proposal for Celo, Soneium, Worldchain, X Layer and Zora is expected later because Uniswap’s GovernorBravo system limits how many actions can be included in a single proposal. The measures follow the UNIfication overhaul approved in December 2025, which tied protocol fee revenue to a UNI burn model. Under that system, collected fees flow into TokenJar contracts, where searchers can claim the assets by supplying UNI of equal value; the UNI is then sent to a burn address on Ethereum, with tokens gathered on other networks bridged back to mainnet before being destroyed. Hayden Adams said current trading activity, especially on Robinhood Chain, could make the burn impact substantial. Governance materials said Uniswap deployments on Robinhood Chain surpassed $6 billion in cumulative swap volume by July 10, just days after the layer-2 network launched on July 1. The documents also said protocol fees are already active across v2 and v3 pools on 11 networks and noted a one-day burn of 186,000 UNI last month. For v4, Uniswap is proposing a dedicated fee framework because the protocol’s hook-based architecture allows dynamic fees and custom logic. The design uses a V4FeePolicy contract to calculate protocol fees and a V4FeeAdapter to apply governance rules and collect proceeds. The first v4 vote covers static-fee pools, pools launched through continuous clearing auctions and aggregator-hook pools.