Deep Dive
1. Mainnet Infrastructure Upgrade (26 November 2025)
Overview: This upgrade improved the core stability and scalability of the Merlin Chain mainnet. It required a planned 12-hour downtime where the network was in view-only mode, preventing new transactions to ensure a smooth transition.
The upgrade focused on enhancing the performance of zero-knowledge (ZK) proofs, which are crucial for verifying transactions privately and efficiently. By optimizing this process, the network aims to handle more transactions faster and more reliably, which is essential for supporting growing developer interest and decentralized applications (dApps).
What this means: This is bullish for MERL because a more stable and scalable network provides a better foundation for all applications built on it. Users can expect fewer network issues and potentially faster transaction confirmations as the technology matures. (Source)
Overview: This was a major version jump, moving the chain from Fork 9 to Fork 12. It overhauled key infrastructure components to drastically improve performance and reliability for end-users.
The update replaced legacy systems with a new, zkEVM-optimized sequencer architecture, allowing for higher transaction throughput and customizable chain configurations. It also migrated the RPC (Remote Procedure Call) infrastructure to CDK-Erigon, which improves the connection between user wallets and the blockchain, leading to a smoother experience. A new smart contract feature, rollbackBatches, was added for greater protocol flexibility.
What this means: This is extremely bullish for MERL because it directly translates to a faster, more efficient network. Users should experience quicker transactions, less congestion during high demand, and overall greater reliability when using dApps on Merlin Chain. ()
3. Upcoming Fork 12 & PoS Transition (Q3 2026)
Overview: Merlin Chain has outlined its next major development phase, which includes a new Fork 12 upgrade and a fundamental shift from its current consensus mechanism to Proof-of-Stake (PoS).
The planned Fork 12 aims to leverage recursive ZK proofs and modular data availability to increase transaction throughput by 50–60x, effectively eliminating mempool congestion. Concurrently, the PoS transition will allow MERL holders to stake their tokens to help secure the network, opening participation to more users and moving towards a more decentralized and sustainable model.
What this means: This is bullish for MERL because it promises a quantum leap in network speed and capacity while creating a direct, rewarding utility for the token through staking. If successfully executed, it could position Merlin Chain as a leading high-performance Bitcoin Layer 2. (Source)
Conclusion
Merlin Chain's development trajectory is aggressively focused on solving scalability through sequential, substantial infrastructure upgrades, with the most recent being the November 2025 stability enhancement. The project's roadmap indicates a commitment to achieving Ethereum-level programmability on Bitcoin's security foundation. Will the upcoming Fork 12 and PoS transition successfully unlock the promised 50–60x performance boost?