Cuttlefish Protocol Upgrade

Overview

The Cuttlefish protocol upgrade went live on mainnet in December 2024, introducing native subintents — modular mini-transactions that users can pre-sign and pass around. This enables new DeFi patterns like peer-to-peer trading and parallel auctions without intermediary smart contracts.

Ecosystem Adoption

• Atomix — peer-to-peer trading platform built entirely on subintents
• Bullring — parallel auction system leveraging subintent composability

Subintents represent a novel DeFi primitive unique to Radix, enabling use cases that are impossible or impractical on other L1s.

External Links

• Radix Subintents in Action: Peer-to-Peer Trading with Atomix