Onyx Announces Strategic Shift: Layer 3 to Be Deprecated by End of 2026, Full Focus on Layer 1
Onyx Protocol has officially announced that its Layer 3 network, XCN Ledger, will be deprecated and shut down on December 31, 2026. Going forward, all development resources will be concentrated on the Onyx Layer 1. This decision marks a strategic consolidation after a period of running multiple execution environments, aiming to build a unified sovereign blockchain as the core of the Onyx ecosystem.
Layer 3's Role and Achievements
The Onyx Layer 3 (XCN Ledger) was built on the Arbitrum Orbit technology stack, using Base as its settlement layer. It served as a high-performance execution environment that successfully demonstrated the utility of XCN as a native gas token, delivered low-cost transactions, and fostered a growing developer ecosystem through integrations with partners such as Privy, Thirdweb, Tenderly, Superbridge, and Chain. The team acknowledges it as an important milestone but notes that ecosystem evolution now demands a different infrastructure.
New Infrastructure: Layer 1 and Onyx Mesh
The launch of Onyx Layer 1, along with the recently introduced Onyx Mesh—a decentralized banking network developed in collaboration with Chain—provides new capabilities. Onyx Mesh enables banks and financial institutions to coordinate transactions securely, verify events via decentralized consensus, and maintain privacy while leveraging public blockchain security. This combination allows Onyx to support both decentralized applications and institutional financial systems on a single, sovereign chain.
Benefits of Consolidating on Layer 1
By focusing engineering resources on one network, Onyx expects to accelerate protocol development, strengthen validator participation, simplify the developer experience, and unify ecosystem liquidity. Developers and users will benefit from a single blockchain purpose-built for financial infrastructure, rather than maintaining multiple execution environments. The team emphasizes that this transition does not change XCN itself; the Ethereum ERC-20 contract remains the primary representation of XCN, and holders can continue to bridge assets between Ethereum and Onyx Layer 1 as needed.
Impact on XCN Holders
XCN remains an Ethereum-native ERC-20 asset, and this status is unchanged. Holders will be able to seamlessly bridge their Ethereum-based XCN to Onyx Layer 1 to participate in staking, applications, and future network functionality while preserving Ethereum as the canonical home of the asset. No token migration or supply changes are involved.
Looking Ahead: Merging Ethereum Liquidity with Institutional Finance
Onyx believes that by combining Ethereum's liquidity with a purpose-built Layer 1 for institutional finance, it is laying the foundation for the next generation of decentralized financial infrastructure. The retirement of Layer 3 is a natural evolution, and the Layer 1 future will host more decentralized banking and financial applications.