Deep Dive
1. Network Upgrade (7 Nov 2025)
Overview: This upgrade integrates ZK-rollups to process transactions off-chain while anchoring proofs to Bitcoin, improving scalability without compromising security.
The update focuses on reducing finality times during congestion and optimizing gas fees for Bitcoin-native protocols like BRC-20. Bybit and Bithumb temporarily paused deposits/withdrawals to implement these changes, signaling institutional confidence.
What this means: This is bullish for MERL because faster, cheaper transactions could attract more DeFi projects and users to Merlin’s ecosystem, boosting network utility. (Source)
2. Mainnet Fork 12 (26 Jun 2025)
Overview: The fork introduced a modular sequencer architecture tailored for zkEVM, replacing legacy systems to handle 50–60x more transactions per second.
Key updates included migrating to CDK-Erigon RPC (improving node stability) and adding a rollbackBatches feature for protocol flexibility. ZK proof generation was optimized, reducing latency by ~40%.
What this means: This is neutral for MERL short-term, as infrastructure upgrades often take time to translate into user growth, but long-term scalability strengthens Bitcoin L2 competitiveness. (Source)
3. PoS Transition (Upcoming)
Overview: Merlin plans to shift to Proof-of-Stake, allowing MERL holders to stake tokens and participate in network validation, reducing reliance on centralized collators.
The upgrade includes a 7-day withdrawal period for staked MERL and incentives for running validator nodes on consumer hardware.
What this means: This is bullish for MERL because staking rewards could increase token demand, while decentralization aligns with Bitcoin’s ethos, appealing to security-focused users. (Source)
Conclusion
Merlin Chain’s codebase upgrades emphasize scalability, security, and decentralization, positioning it as a leading Bitcoin L2. Will these technical strides accelerate adoption as BTCFi gains momentum?