Horizon Technical Maintenance Updates

Summary

This thread will be used for technical maintenance updates related to Horizon, to keep Horizon activity visible, structured, and easy for the DAO to track.

Context

Horizon is Aave’s solution for bringing real world assets (RWAs) onchain, enabling qualified participants to borrow stablecoins, including GHO, against tokenized assets while respecting issuer compliance requirements. It is designed to grow over time, both in the assets it supports and in the underlying implementation.

As Horizon matures, it evolves across surfaces spanning price feeds, oracle adapters, permission and access controls, asset configuration, and contract deployments among others. Some updates will be routine maintenance, while others will introduce new functionality or broader initiatives. Keeping those updates in one thread gives the DAO a clear place to review what is changing, why it is needed, and how execution is happening.

Scope

This thread is intended for updates that are technical, limited in scope, and not expected to create material community disagreement.

Examples include price feed updates, oracle adapter changes, permission and access control alignment, asset configuration maintenance, deployment consistency fixes, address registrations, and other changes required to keep Horizon components aligned with the approved architecture.

Where a change should go through the normal governance process, such as new market listings, new collateral onboarding, risk parameter changes that materially affect users, budget approvals, or incentive programs, it will follow the applicable ARFC, Snapshot, or AIP route rather than being handled as a standalone update here.

For each maintenance item, Aave Labs will post a standalone update in this thread with the relevant context, affected components, technical specification, execution path, and expected user impact.

Where the update requires an onchain governance proposal, the post will be shared before the AIP is created. Where the update is executed through an authorized operational multisig or Security Council path, the post will explain that execution path and why it applies.

If timing or security constraints require execution before public disclosure, the update will be posted as soon as practical after execution.

As a baseline, maintenance updates will remain open for community review before execution or AIP creation when timing allows. If there are material concerns from the DAO, the item will be moved into the applicable ARFC, Snapshot, or AIP process instead of continuing as a maintenance update.

Update of RLUSD and USDC price feeds on Aave Horizon V3

Simple Summary

Replace the existing RLUSD and USDC price feeds on the Aave Horizon V3 instance with price cap adapters (CAPO), each set to a maximum price of 1.02 and using the corresponding Chainlink feed as the underlying source.

Motivation

Per LlamaRisk’s recommendation, pricing RLUSD and USDC through a capped adapter is preferable to a direct feed. Following the same strategy already applied to other assets across the protocol, the proposal wraps each Chainlink feed in a price CAPO adapter with a cap of 1.02, ensuring the reported price tracks Chainlink while remaining bounded on the upside.

Specification

Upon execution, the proposal will call setAssetSources([ASSET], [PRICE_CAP_ADAPTER]) on the Horizon Aave oracle, pointing RLUSD and USDC at their newly deployed price CAPO adapters. Each adapter uses the corresponding Chainlink feed as its underlying source and the cap price listed below.

Parameter (RLUSD) Value
Asset 0x8292Bb45bf1Ee4d140127049757C2E0fF06317eD
Chainlink Price Feed 0x26C46B7aD0012cA71F2298ada567dC9Af14E7f2A
Price Adapter 0x9e7c31e9b3c76ea759d9f7464210353862f0c957
Price cap 1.02
Parameter (USDC) Value
Asset 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48
Chainlink Price Feed 0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6
Price Adapter 0x46f94aff8cF7DdC8557eF69f7276087b01C8f363
Price cap 1.02

Disclaimer

Aave Labs is presenting this proposal as a service provider to the Aave DAO. Aave Labs is contributing this proposal as part of its approved scope of work in support of DAO operations.

Copyright

Copyright and related rights waived via CC0.

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