Aave V4 is a decentralized lending protocol that coordinates liquidity through Hubs and sets market-specific borrowing rules through Spokes. That structure lets distinct lending environments draw on shared capital, but it does not guarantee available liquidity or eliminate the risks of lending and borrowing crypto assets.
What is Aave V4?
Aave V4 is the fourth-generation version of Aave’s decentralized lending protocol. Its central design change is to separate liquidity coordination from the rules that govern individual lending environments. A Hub coordinates liquidity and accounting; a Spoke connects user activity—such as supplying, withdrawing, borrowing, and repaying—to a Hub under its own market configuration.
Aave Labs describes the model as a way for different lending environments to draw on shared capital. In practical terms, a Spoke can define supported collateral and borrowing rules without requiring every lending environment to maintain a wholly separate pool of supplier liquidity. How much capital a Spoke can use depends on its live configuration and the Hub’s limits.
How do Aave V4 Hubs and Spokes work?
| Component | What it does | What users should check |
|---|---|---|
| Hub | Coordinates liquidity and accounting for connected Spokes. It sets spoke-specific limits on adding or drawing liquidity and maintains accounting invariants. | Which Spokes are connected, the applicable caps, and the liquidity and utilization available through the Hub. |
| Spoke | Provides a lending environment for user actions and applies its own supported collateral, market rules, and liquidation behavior. | Eligible collateral, risk parameters, borrowing conditions, liquidation rules, and the Hub liquidity it can access. |
The distinction is important: shared liquidity is not the same as identical risk. A Spoke’s rules can create differentiated borrowing environments, but the actual exposure depends on the Hub-and-Spoke wiring, caps, assets, and contracts in use. Modularity alone does not establish that every risk is fully isolated.
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Sharing capital may reduce the need for each lending market to attract its own supplier base. The trade-off is that users need to assess both the Spoke’s market rules and the Hub’s liquidity and limits—not just the asset name or displayed rate.
Is Aave V4 live, and where?
Yes. Aave’s official changelog records the Ethereum mainnet launch on 30 March 2026, followed by entries for additional deployments and market changes. Deployments are chain-specific, and supported assets, caps, and parameters can change through governance.
| Deployment or change | Date recorded by Aave | What the changelog says |
|---|---|---|
| Ethereum mainnet launch | 30 March 2026 | Initial configuration: three Hubs—Core, Plus, and Prime—and eleven Spokes. |
| Ethereum USDG addition | 25 June 2026 | A USDG Hub and Spoke were added. |
| Avalanche market launch | 15 July 2026 | The changelog records a V4 market launch; the entry summarized here does not state its Hub, Spoke, or asset configuration. |
| Arc launch | 16 September 2026 | The changelog describes Arc as Circle’s USDC-native Layer 1 and lists a Core Hub with Main and Forex Spokes, supporting USDC, EURC, cirBTC, and WETH. |
These are dated changelog entries, not a guarantee that the same markets or assets remain available unchanged. Before using a market, check Aave’s current protocol changelog and interface for the selected chain, Hub, Spoke, supported assets, and limits.
What were the initial Ethereum Hubs intended for?
Aave’s activation proposal described Core as the default liquidity and routing venue, Prime as intended for suppliers seeking a more controlled collateral posture, and Plus as intended for strategy-heavy stablecoin activity with separate caps and pause conditions. These descriptions explain the initial design intent; they are not assurances that current configurations are unchanged or endorsements of any Hub.
How does Aave V4 set rates and manage collateral risk?
Aave’s V4 overview describes base borrowing rates as utilization-driven: rates respond to how much of the relevant liquidity is being used. It also describes risk premiums that can adjust borrowing costs according to collateral risk, including factors such as asset volatility, market conditions, and liquidity. These are protocol mechanisms, not promises of a predictable borrowing cost, stable yield, or favorable outcome.
Aave Labs’ development update describes a liquidation engine that uses a target health factor and variable liquidation bonuses rather than a fixed close-factor approach. A borrower can still face liquidation if the position no longer meets the applicable health requirements. The exact outcome depends on the live market parameters and conditions; borrowers should not treat a particular rate, collateral setting, or liquidation design as protection against loss.
Who sets Aave V4’s parameters and controls?
Aave’s activation proposal called for a narrow Ethereum rollout with conservative risk parameters, followed by observation of liquidity routing, utilization concentration, and credit-line behavior. It described the Hub as immutable and Spokes as upgradeable, with security roles able to pause or freeze activity in an emergency. Expansion of caps, assets, Hubs, and Spokes was described as subject to later governance actions and risk review. Those are proposal-era descriptions; check current governance and deployment records for live permissions and settings.
Aave’s governance documentation says AAVE, stkAAVE, and aAAVE token holders govern the protocol on Ethereum mainnet through proposals, voting, and onchain execution. The documented process includes discussion, formalization, voting, and execution; timelock delays can be one or seven days depending on proposal type. Governance can change the conditions users encounter, so market parameters should be treated as changeable rather than permanent.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallWhat does the V4 security review establish?
ChainSecurity published its V4 smart-contract assessment on 19 February 2026. Its findings summary reports zero critical and zero high findings, plus three medium findings, all marked code corrected. The report covers specified code versions and excludes items outside its scope, including deployment scripts and tests. It is evidence about that defined review—not proof that every deployed component, configuration, or later change is safe.
In an update dated 1 April 2026, Aave Labs reported roughly 345 days of cumulative security review for V4 and a $1.5 million security budget ratified by Aave DAO. Those figures are reported by Aave Labs; they are not independent measures of protocol safety.
How can users inspect a V4 market?
Aave Labs identifies Aave Pro as the dedicated V4 interface, designed to surface Hubs, Spokes, assets, and rates so users can find markets without needing to navigate the full architecture unaided. Interface availability and market data can change, so confirm the current interface and verify the market details on the relevant chain before acting.
- Confirm the chain and deployment rather than assuming a market exists identically across networks.
- Check the selected Hub and Spoke, including eligible collateral, caps, and liquidation rules.
- Review available liquidity and utilization alongside any displayed rate; rates can change as utilization and parameters change.
- Consider governance controls and the scope and version of security reviews relevant to the contracts in use.
Supplying or borrowing through a decentralized protocol involves smart-contract, collateral, liquidity, oracle, governance, and liquidation risks. Shared liquidity can reduce fragmentation, but it does not remove those risks or ensure that a withdrawal or borrowing request will be available when needed.
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