Key Highlights
- •The Aave V4 public testnet is live, featuring the open-source V4 codebase for review and a developer preview of “Aave Pro,” the upgraded interface.
- •V4 introduces a Hub and Spoke architecture that centralizes liquidity into Liquidity Hubs to eliminate capital fragmentation.
- •The protocol implements a new Risk Premiums system that directly ties borrowing rates to the quality of the collateral provided.
Aave, a decentralized finance (DeFi) protocol, has released its V4 upgrade to a public testnet. Along with this launch comes a developer preview for a specialized new interface called “Aave Pro.” This represents a point in the protocol roadmap where the V4 codebase is made available for review by the community and progresses it further toward a mainnet release.
With the V4 testnet now live, external developers can review the new architecture and play with its functionality. The first version of Aave Pro is being introduced as a revamped web application interface tailored specifically for professional users and crypto-natives.
Aave V4 testnet, featuring a developer preview of our new interface, Aave Pro, is now live. pic.twitter.com/q7ltPy0pxC
— Aave (@aave) November 19, 2025
Aave Pro is meant to provide an enhanced user experience and a wider array of tools, making it a default platform for users who seek to harness the complete potential of the renewed Aave Protocol.
What the V4 Upgrade Brings
Aave Labs proposed the Aave V4 roadmap in May 2024 as a step for the leading decentralized lending protocol. This shift from V3 to V4 fundamentally addresses issues of liquidity fragmentation and aims to enhance the system’s ability to support diverse asset classes, including a deeper integration of the native stablecoin, GHO, and future real-world assets (RWAs).
This testnet phase is described as integral to the stability and security of the protocol. Before an implementation is finally deployed to the mainnet, the community and builders can use the protocol as a testing ground for new features.
A “security-first” approach has characterized the pre-launch development process. The release of Aave Pro also reflects a continued focus on their core base of sophisticated users, even as the protocol has begun releasing more straightforward products, like the Aave App, aimed at end users.
In the V4 architecture, two major strategic shifts are introduced: a new system architecture and a refined risk model. The core of this update is a “Hub and Spoke” design. This is purposed to address the problem of fragmented liquidity across the different markets sharing the same blockchain by funnelling all capital through centralized Liquidity Hubs. Improved capital utilization would then yield better rates for both lenders and borrowers. Governance is also simplified in such a way that integrating or updating a new “Spoke” will not disrupt the whole system.
The Feature of Risk Premiums for Security
V4 is going to introduce a “Risk Premiums” system for risk management. The feature is targeted at more precisely pricing borrowing by directly linking the user’s interest rate with the quality and safety of the collateral supplied. This mechanism will incentivize the usage of safer assets, thus creating a more efficient market, where the cost of borrowing will more precisely reflect the actual exposure to risk.
Security is still one of the core focuses for the project. The Aave team has confirmed that the V4 codebase has undergone numerous reviews by independent auditors. Although the full audit reports are currently being finalized, they do commit to making the findings publicly available as they draw closer to the mainnet launch.
The near future involves data gathering and feedback from the community, developers experimenting with features of the testnet, and user input on the interface of Aave Pro, forming part of the final adjustments in the lead-up to the mainnet launch.
The launch of the Aave V4 public testnet and the Aave Pro developer preview marks the final community-facing phase before the eventual mainnet launch. The current period focuses on extensive testing, refinement of the new Hub and Spoke architecture, optimization of the Risk Premiums model, and ensuring stability of the upgraded protocol.

