Historical retrospective · Layer 2
Bedrock redesigned key parts of the OP Stack
Optimism’s Bedrock upgrade changed its rollup architecture to improve modularity, reduce costs and better align with Ethereum execution concepts.
A shared stack can let multiple chains reuse tooling and contribute to a common rollup ecosystem.
Bedrock marked a shift from one rollup product toward a more reusable infrastructure framework.
Shared code can spread improvements, but also shared bugs; upgrades still need independent review and monitoring.
Primary source
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