Aave DAO Approves Native Bitcoin Collateral Plan for V4

Aave DAO voted 100% in favor on Nov. 9 of a proposal to accept native Bitcoin as collateral on Aave V4, routing deposits through Babylon's Trustless Bitcoin Vaults. The plan now advances to an Aave Improvement Proposal (AIP) stage, with a mainnet launch targeted for the end of 2026.

The structure lets Bitcoin holders lock BTC in Babylon's Trustless Bitcoin Vaults while retaining self-custody, then borrow assets such as USDT or USDC against it. Users would not need to wrap Bitcoin or move it across a bridge, removing two of the most common attack surfaces in existing BTC lending setups.

What parameters did the DAO approve?

The proposal sets specific risk and liquidity terms for the initial deployment:

• Collateral ratio: 78%
• Risk premium: 0%
• Initial stablecoin borrowing capacity: roughly $21 million
• Liquidity source: primarily the Aave Core Hub

Those caps signal a deliberately conservative rollout. The initial phase would limit participation and scale in stages rather than open unrestricted borrowing on day one.

How does the Babylon structure work?

Under the plan, BTC stays in a Bitcoin vault under the holder's control while Babylon's staking infrastructure secures the position. This gives Aave a route to Bitcoin-backed stablecoin credit without relying on wrapped derivatives such as WBTC or cross-chain bridges, both of which carry custodial and smart-contract risk that Aave's risk framework has historically penalized.

The design also fits Aave V4's architecture, which consolidates liquidity across hubs rather than fragmenting it across isolated markets. The Aave Core Hub would serve as the main liquidity source for the initial stablecoin borrowing capacity.

What happens next?

The proposal moves to the AIP stage, where Aave's formal governance process will finalize implementation details before any code reaches mainnet. The timeline targets a launch by the end of 2026, with phased scaling of participation caps after the initial rollout.

For Aave, the vote marks a step toward capturing Bitcoin collateral flows that currently sit outside DeFi rather than competing on wrapped-asset markets. The 78% collateral ratio and $21 million initial cap leave substantial room to expand if the first phase performs without incidents.