- The upgrade introduces unified Liquidity Hubs to replace fragmented markets.
- Spokes introduce modular loan systems with independent risk profiles.
- V4 aims to increase capital efficiency and open new possibilities for developers.
The lending protocol Aave is preparing for one of its most transformative upgrades.
Two days after the launch of a mobile savings app, the team released the upgrade’s testnet, signaling progress toward Aave V4, which is designed to change how liquidity flows through the protocol.
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
V4 will replace the shared multi-market system with an innovative, unified “Hub and Spoke” architecture.
The version 4 upgrade aims to reshape decentralized finance lending by prioritizing developers who want to launch risk markets or experiment with assets that don’t neatly fit Aave’s current structure.
The official blog highlighted:
Each L1 or L2 will host at least one Aave V4 Liquidity Hub, with the possibility of multiple hubs per network. Hubs enable broader experimentation within these ecosystems without liquidity becoming a limiting factor. This design makes it easier to support new risk profiles and foster innovation without fragmenting liquidity, while providing a mechanism to seed liquidity for new Spokes.
To understand why the V4 upgrade matters, let’s review how Aave V3 operates and the limitations that led the team to seek a more flexible model.
A look at Aave V3
In Aave version 3, each market operates independently.
Implementations like Ethereum Prime and Ethereum Core maintain their own asset lists and liquidity pools.
Users supply to a specific market, and borrowing is limited to that market’s liquidity.
While this structure helps separate risk, it also creates important constraints.
For example, liquidity locked in one market cannot support loans in another.
Additionally, launching new markets requires funding them from scratch.
That slows adoption and fragments the user base.
Governance becomes more complex and experimentation is harder because each distinct market demands its own pool.
The Aave team added:
It also limits economies of scale for borrowing and makes it harder to support new assets or implement unique lending solutions, which become isolated and more difficult to use.
A unified Liquidity Hub to replace independent markets
Version 4 overhauls the Aave lending ecosystem with a Liquidity Hub: a shared pool that consolidates assets for the entire platform.
The innovative hub serves as the single source of liquidity, ensuring borrowers and suppliers draw from the same capital base and replacing segmented pools.
Importantly, users will not interact directly with the Hub, although all deposits will ultimately reside there.
The Hub will manage everything, including interest calculations, accounting, and borrowing limits.
Each L1 or L2 network can host at least one hub, except for chains with specialized needs or extremely high traffic.
The team expects this consolidation to significantly improve capital efficiency by reducing idle liquidity and enhancing borrowing conditions.
AAVE outlook
Aave’s native token experienced notable selling pressure on the daily chart.
It fell more than 6% over the past 24 hours to $166.
A 27% drop in daily trading volume confirms negative sentiment around AAVE.
At the same time, its downward movement coincided with broader market weakness.
The global crypto market cap fell more than 4% over the last day to $3.04 trillion as Bitcoin slipped below $90,000 and traded at $89,478.