Isthmus

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Activation Timestamps

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Execution Layer

• Pectra (Execution Layer):
  • EIP-7702
    • Span Batch Updates
  • EIP-2537
  • EIP-2935
    • EIP-2935 Contract Deployment
  • EIP-7002
    • The EIP-7002 predeploy contract and syscall are not adopted as part of Base.
  • EIP-7251
    • The EIP-7251 predeploy contract and syscall are not adopted as part of Base.
  • EIP-7623
  • EIP-6110
  • EIP-7685
• L2ToL1MessagePasser Storage Root in Header
• Operator Fee

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Consensus Layer

• Isthmus Derivation

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Smart Contracts

• Predeploys
• L1 Block Attributes
• System Config