Deep Dive
1. Mainnet Launch on Base (10 December 2025)
Overview: Horizen's mainnet is now operational as a high-performance, EVM-compatible appchain on Coinbase's Base network. This transforms it from an isolated Layer 1 into a privacy-focused Layer 3 rollup within the Ethereum ecosystem.
The launch completes the project's architectural migration, allowing developers to build Solidity-based applications that offer "selective confidentiality." This means apps can keep sensitive data private while remaining fully connected to Base's liquidity and user base. Early ecosystem applications like Gamblor Casino and DataHubz are already live.
What this means: This is bullish for ZEN because it dramatically improves the developer experience and user access. Builders can now create privacy-preserving apps more easily, while users benefit from faster transactions and lower fees compared to the old chain. The integration with a major ecosystem like Base significantly boosts ZEN's potential utility and adoption.
(Horizen)
2. Protocol Whitepaper Release (26 November 2025)
Overview: The team released a new technical whitepaper outlining Horizen 2.0's core architecture. It introduces a two-part system: the Horizen Confidential Compute Environment (HCCE) for secure, private execution and the Horizen Chain to coordinate these operations.
This blueprint shifts the project's focus from full anonymity to "auditable confidentiality," designed to meet regulatory requirements while protecting sensitive on-chain data. It formalizes Horizen's role as the privacy layer for the Base ecosystem.
What this means: This is neutral-to-bullish for ZEN as it provides a clear, compliant technical vision. It addresses a major hurdle for institutional adoption by balancing privacy with necessary transparency for audits. For users, this means future apps could securely handle private business logic or personal data without sacrificing the benefits of being on a major chain.
(Horizen)
3. Node Software Upgrade ZEN 5.0.7 (15 July 2025)
Overview: This was a mandatory software update for all nodes on the legacy Horizen mainnet and testnet. The previous version (5.0.6) was deprecated at a specific block height, requiring operators to upgrade to maintain network participation.
The update did not introduce a hard fork or new network features. Its primary purpose was to ensure stability and compatibility as the project prepared for its subsequent migration to Base.
What this means: This was a necessary, neutral maintenance update for the old chain. For node operators at the time, it was critical to avoid service disruption. For the broader project, it represented the final preparations before the major, ecosystem-changing migration to Base.
(Bitget News)
Conclusion
Horizen's recent codebase evolution is defined by its strategic pivot to a privacy-first Layer 3 on Base, moving from an independent chain to an integrated appchain with a clear, compliant technical vision. Will its new architecture as a practical privacy layer attract the developer activity needed to drive its next growth phase?