UNI burning is about to accelerate! Uniswap on-chain voting is underway: v4 fee expansion, and Robinhood Chain included in the fee roadmap

Uniswap governance will conduct on-chain voting from July 19 to 26 to decide whether to enable protocol fees for parts of v4 liquidity pools, and to expand the v2 and v3 fee mechanisms to Robinhood Chain; the founders expect this to significantly boost UNI burn volume.
(Background recap: Uniswap’s major proposal: enable protocol fees, burn tokens, and restructure the governance framework—UNI jumped more than 40%)
(Additional context: Do $UNI token holders receive revenue distribution? Uniswap’s $160 million funding proposal: kick off v4 and Unichain incentives…)

Table of contents

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• v4 fee proposal: three types of pools, seven chains go live in sync
• Robinhood Chain trading volume surges, meme coins carry first-week hype
• v4 charges are not simple: dynamic fee rates require a brand-new governance framework
• From UNIfication to 11 chains: the expansion context of the burn mechanism

The fee switch is about to trigger the largest one-time acceleration of the UNI burn engine. Uniswap’s governance on-chain vote began on July 19 (Sunday) and will run through July 26. At the same time, it will vote on two proposals: first, enabling protocol fees for v4 part liquidity pools for the first time; second, expanding the v2 and v3 fee mechanisms to Robinhood Chain.

Uniswap founder Hayden Adams said on X that, considering current trading volume—especially the volume capacity on Robinhood Chain—“we expect this to have a fairly significant impact on UNI burn volume.”

v4 fee proposal: three types of pools, seven chains go live in sync

According to the proposal text, the v4 proposal will enable fees for three types of liquidity pools: fixed fee rate pools, pools launched through continuous settlement auctions, and aggregator hook pools. The scope covers seven chains: Ethereum, Arbitrum, Base, BNB Chain, Polygon, Optimism, and Robinhood Chain.

Because Uniswap’s GovernorBravo governance contract limits a single proposal to execute at most 10 on-chain actions, the remaining five chains will be handled in a second proposal.

Another proposal submitted by Adams himself focuses on enabling the v2 and v3 fee mechanisms for Robinhood Chain. Uniswap has already deployed the full set of v2-to-v3 protocol versions on Robinhood Chain when it went live on the mainnet on July 1; the proposal notes that as of July 10, the cumulative trading volume of these deployments has already exceeded $6 billion.

Robinhood Chain trading volume surges, meme coins carry first-week hype

Robinhood Chain is an Ethereum Layer 2 built on the Arbitrum technology stack. In its first week after launch, it attracted about $3.1 billion in DEX trading volume, with meme coins driving early trading.

On-chain data shows that Uniswap trading volume on Robinhood Chain hit a new all-time high on July 8 at $563.9 million for the day—about 10 times the $58.9 million on the previous day. The strength of the momentum is also a key basis for Adams’ view that UNI burn volume will grow significantly.

v4 charges are not simple: dynamic fee rates require a brand-new governance framework

v2 and v3 use fixed fee rate tiers, while v4’s hook architecture allows a pool’s fees to change block by block, making the act of “turning on fees” much more complex.

To this end, the proposal introduces a new mechanism controlled by governance: first classify pools into different “families,” then calculate each family’s fee rates based on rule sets rather than manually setting them pool by pool. Both proposals use UNIfication via the fast governance route approved after the fact, skipping the RFC (request for comments) stage; instead, they switch to a 5-day Snapshot vote followed by an on-chain vote immediately after. The Snapshot vote was completed from July 7 to 12, and this is the final on-chain confirmation.

From UNIfication to 11 chains: the expansion context of the burn mechanism

The fees collected by these two proposals will ultimately flow into the burn mechanism established by UNIfication. UNIfication was a major governance reform passed in December last year with 99.9% support rate. At that time, it already enabled protocol fees for v2 and v3 liquidity pools on the Ethereum mainnet, and burned 100 million UNI from the treasury. However, the v4 charging issue was deferred for later handling. Uniswap governance has actually been discussing broader fee expansion plans since February of this year. As of now, the burn mechanism has been rolled out to 11 chains, and last month it also set a record of burning 186k UNI in a single day.

The voting results will be revealed on July 26. If both proposals pass, Uniswap’s fee rollout map will expand all at once to near full-chain coverage, and UNI’s burn rate is also expected to rise in sync with Robinhood Chain’s momentum.