Transitioning from Base to a Unified Tech Stack to Reduce Dependence on Optimism

ChainCatcher report: Coinbase’s Ethereum Layer 2 network, Base, has announced it will no longer rely on Optimism’s OP Stack and Superchain architecture, instead transitioning to its own independently operated “unified stack.” According to the official blog post, Base will consolidate core components previously分散 across multiple teams and code repositories—including critical modules such as the sequencer—into a single unified codebase, “base/base,” to reduce coordination and maintenance overhead and enable deeper optimization tailored to its specific needs. Simultaneously, Base will reduce its dependencies on external services such as Flashbots and Paradigm. On the governance front, Base will restructure its Security Council by replacing existing Optimism-related seats with newly added independent signers. Although transitioning to a fully autonomous technical architecture, Base emphasizes that the protocol will remain open-source and publicly specified, welcoming third-party development of independent clients and maintaining cross-upgrade compatibility. Base is currently the largest network within the OP Stack Superchain ecosystem.