Aave deployed V4 on Ethereum mainnet on March 30, 2026, introducing a hub-and-spoke lending architecture designed to route DeFi liquidity into real-world credit markets. The upgrade passed an on-chain governance vote with approximately 60% approval — roughly 433,000 votes in favor versus 282,000 ...
"Now what we want to focus is on the borrow side, creating significant borrow demand by using the onchain liquidity and channeling that back into the real economy where we have funding opportunities, whether it's institutions, consumers or businesses." — Stani Kulechov, Founder, Aave
Aave deployed V4 on Ethereum mainnet on March 30, 2026, introducing a hub-and-spoke lending architecture designed to route DeFi liquidity into real-world credit markets. The upgrade passed an on-chain governance vote with approximately 60% approval — roughly 433,000 votes in favor versus 282,000 against — making it the most contested major protocol upgrade in DeFi history.
The launch occurred against a backdrop of organizational fracture. BGD Labs, the team that built and maintained Aave's V3 codebase for four years, ceased contributions effective April 1. The Aave Chan Initiative (ACI), which drove 61% of governance actions over three years, announced it would wind down operations over four months, citing self-voting concerns and lack of transparency around a $51 million budget request from Aave Labs. Aave now commands $23.8 billion in TVL and approximately 60–67% of DeFi lending market share — but it launches its most ambitious upgrade while losing two of its three core contributor teams.
Aave V4 replaces the monolithic pool design used since V1 with a modular architecture that separates liquidity storage from borrowing logic. The system has two components:
Liquidity Hubs store assets, track protocol-wide accounting, and enforce global risk caps. They consolidate liquidity across markets so capital is not fragmented.
Spokes are modular borrowing environments that plug into hubs. Each spoke defines which assets it supports, how interest rates behave, and what collateral rules apply. Spokes draw liquidity from the shared hub through credit lines rather than maintaining independent pools.
At genesis, V4 launches with three hubs:
| Hub | Function | Key Assets | |-----|----------|------------| | Core | Mainstream collateral | wETH, wBTC, USDT, USDC, GHO | | Prime | Blue-chip positions | cbBTC, EURC | | Plus | Ethena-related strategies | USDe, sUSDe |
Ten spokes are operational at launch, with dedicated spokes from Lido, EtherFi, Kelp, Ethena, and Lombard. Supported assets include USDT and XAUt from Tether, USDC and EURC from Circle, cbBTC from Coinbase, frxUSD from Frax, and USDG from Paxos.
The architecture is a direct response to competitive pressure from Morpho, which surpassed $5 billion in TVL by early 2026 using a permissionless modular design built on just 650 lines of Solidity. Both protocols now acknowledge the same structural insight: monolithic lending pools cannot simultaneously serve institutional, retail, and exotic collateral markets. Aave's approach keeps liquidity centralized under DAO governance; Morpho's lets anyone create isolated markets with custom parameters.
V4 was announced at DeFi Day Cannes, held March 30 at the Palais des Festivals et des Congrès, organized in collaboration with EthCC and The Rollup. Key launch parameters:
Kulechov described the approach: "We're aiming for sort of a controlled launch. That's how we always deployed the Aave V3, Aave V2 and V1, in a very controlled training wheels manner."
Aave V4 underwent approximately 345 cumulative days of security review before deployment. The program involved multiple layers:
Formal Verification: Certora, which has collaborated with Aave for six years, reviewed 169 smart contracts and more than 51,000 lines of code. The team generated over 800 formal verification rules and identified 28 critical vulnerabilities before deployment — all resolved pre-launch.
Manual Audits: Four audit firms participated, including ChainSecurity, Trail of Bits, and Blackthorn, alongside four independent security researchers.
Public Contest: A six-week security contest hosted on Sherlock between December 2025 and January 2026 attracted more than 900 verified participants who submitted over 950 findings. No critical or high-severity vulnerabilities were reported.
Total Spend: The security program cost approximately $1.5 million, according to The Block.
The multi-layered approach reflects lessons from DeFi's history of exploits. Q1 2026 alone saw $137 million in crypto exploits, with infrastructure attacks dominating the loss category.
V4's launch is overshadowed by the departure of two of Aave's three core contributor teams.
BGD Labs, the team behind Aave V3's codebase, announced in February it would not renew its engagement with the Aave DAO after April 1, 2026. The firm cited what it described as an "asymmetric organizational scenario" in which Aave Labs controlled the brand, communications channels, and voting influence — creating centralization risks within a nominally decentralized ecosystem.
BGD Labs also criticized what it characterized as an adversarial approach toward improving V3 and a lack of meaningful collaboration around V4 development. Contributors were reportedly asked to advise on V4 without compensation or involvement in its design. The firm proposed a two-month optional security retainer from April through June 2026 to handle V3-related security incidents during the transition.
The ACI, led by Marc Zeller, announced it would wind down operations over four months. ACI said it drove 61% of governance actions over the past three years, helped deploy $101 million in incentives, and oversaw growth of the GHO stablecoin from $35 million to $527 million in supply.
The dispute centered on the "Aave Will Win" proposal from Aave Labs, which requested up to $51 million in stablecoins and 75,000 AAVE tokens to fund V4-related product development, marketing, and expansion. ACI alleged that addresses linked to Aave Labs voted on the proposal, tipping the outcome. ACI had requested four conditions before supporting the proposal, including stricter on-chain milestone tracking and limits on self-voting by addresses linked to the budget recipient. Those conditions were not met.
To settle its remaining obligations, ACI submitted a direct proposal to cancel its GHO funding stream and transfer 120 days of funding to its treasury address, with the remainder returning to the DAO. ACI said it chose a lump-sum approach "because it does not trust the governance process to maintain its stream during the transition."
The 40% dissent on the V4 governance vote — unusual for a major protocol upgrade — reflects these underlying tensions. Aave Labs now holds effective operational control of the protocol's largest upgrade while the two groups responsible for V3 maintenance and governance coordination have both departed. The DAO must now source replacement contributors for risk management, governance facilitation, and V3 security maintenance.
Aave enters this new phase as the dominant DeFi lending protocol by a significant margin.
| Protocol | TVL | Market Share (approx.) | |----------|-----|----------------------| | Aave | $23.8B | 60–67% | | Morpho | $5B+ | ~13% | | Compound | $2.08B | ~5% |
Aave has originated over $1 trillion in cumulative loans. Revenue stands at approximately $74.8–94 million annualized, though monthly revenue declined from a peak of $13.3 million in September 2025 to $7.57 million in December 2025. TVL peaked above $45 billion in October 2025 before declining through Q1 2026.
The broader crypto market provides context: Bitcoin is down 46% from its all-time high, Ethereum is down nearly 50% from its all-time high, and the Fear and Greed index spent 46 consecutive days in the extreme fear zone as of late March 2026.
Kulechov's stated ambition for V4 extends beyond on-chain lending. "Aave V4 shifts the focus to the demand side, putting that liquidity to work across real credit markets," he said in interviews around the launch.
The vision: use Aave's $23.8 billion in on-chain liquidity to fund real-world infrastructure, including solar energy arrays, data centers, and water desalination plants. The hub-and-spoke architecture is designed to make this technically feasible — specialized spokes could serve institutional borrowers with custom collateral requirements and risk parameters while drawing from the same liquidity pool used for standard DeFi lending.
This positions Aave in direct competition with the tokenized real-world assets (RWA) sector, where tokenized money market funds have already reached $9 billion in AUM. It also places Aave adjacent to traditional corporate lending — a $10+ trillion market — though the gap between ambition and execution remains substantial.
"Lending is based on trust… you need lending conditions that reflect market conditions," Kulechov noted. Whether a DAO-governed protocol can build the institutional relationships and legal frameworks required for real-world credit remains an open question.
Contributor Concentration: With BGD Labs and ACI departing, Aave Labs is the primary remaining contributor. This creates single-point-of-failure risk for a protocol managing $23.8 billion in user deposits.
Governance Legitimacy: A 60/40 vote split on a major upgrade signals weak consensus. Future governance proposals may face similar opposition, potentially slowing the expansion of V4's conservative initial parameters.
V3 Maintenance Gap: BGD Labs built and maintained V3 — which still holds the vast majority of Aave's TVL. The two-month security retainer expires in June 2026. No replacement maintenance team has been publicly announced.
Competitive Pressure: Morpho's $5 billion TVL and tighter interest rate spreads (USDC supply rates typically 0.5–2% higher than Aave) demonstrate that modular lending has market demand. Aave's hub-and-spoke model must prove it can match Morpho's capital efficiency while maintaining the deeper liquidity that justifies its market share premium.
Market Conditions: Launching a credit expansion during a period of significant crypto market drawdown introduces timing risk. Revenue already declined 43% from September to December 2025.
Aave V4 represents a technically sound architectural upgrade addressing a real structural limitation of monolithic lending pools. The hub-and-spoke model is the protocol's answer to modular competition from Morpho and institutional demand for customized risk parameters.
The governance dynamics surrounding the launch are more consequential than the technical upgrade itself. A protocol managing $23.8 billion in deposits has lost two of its three core contributor teams within a single quarter. The 40% dissent rate on the V4 vote — combined with allegations of self-voting on budget proposals — raises questions about governance legitimacy that technical architecture cannot resolve.
Kulechov's ambition to channel on-chain liquidity into real-world credit markets is directionally consistent with the broader RWA tokenization trend. The gap between a DAO-governed lending protocol and a real-world credit provider is measured in legal frameworks, institutional relationships, and regulatory approvals — none of which are addressable through smart contract upgrades alone.
The next 90 days will determine whether V4's conservative parameters can be expanded without governance gridlock, whether replacement contributors can be sourced for V3 maintenance and risk management, and whether the hub-and-spoke model attracts sufficient borrow demand to reverse the revenue decline. The protocol's dominance in DeFi lending is not in question. Its organizational capacity to execute on that dominance is.