v1.2.0

This release supports the OPStack Granite upgrade(Includes Delta, Ecotone, Fjord). For detailed information about these upgrades, please refer to the OPStack release. The following is a quote:

Delta

• Consensus Layer
  • The Delta upgrade consists of a single consensus-layer feature: Span Batches.

Ecotone

• Execution Layer
  • Cancun (Execution Layer):
    • EIP-1153: Transient storage opcodes
    • EIP-4844: Shard Blob Transactions
    • Blob transactions are disabled
    • EIP-4788: Beacon block root in the EVM
    • The L1 beacon block root is embedded into L2
    • The Beacon roots contract deployment is automated
    • EIP-5656: MCOPY - Memory copying instruction
    • EIP-6780: SELFDESTRUCT only in same transaction
    • EIP-7516: BLOBBASEFEE opcode
    • BLOBBASEFEE always pushes 1 onto the stack
  • Deneb (Consensus Layer): not applicable to L2
    • EIP-7044: Perpetually Valid Signed Voluntary Exits
    • EIP-7045: Increase Max Attestation Inclusion Slot
    • EIP-7514: Add Max Epoch Churn Limit
• Consensus Layer
  • Blobs Data Availability: support blobs DA the L1 Data-retrieval stage.
  • Rollup fee update: support blobs DA in L1 Data Fee computation
  • Auto-upgrading and extension of the L1 Attributes Predeployed Contract (also known as L1Block predeploy)

Fjord

• Execution Layer
  • RIP-7212: Precompile for secp256r1 Curve Support
  • FastLZ compression for L1 data fee calculation
  • Deprecate the getL1GasUsed method on the GasPriceOracle contract
  • Deprecate the L1GasUsed field on the transaction receipt
• Consensus Layer
  • Constant maximum sequencer drift
  • Brotli channel compression
  • Increase Max Bytes Per Channel and Max Channel Bank Size

Granite

• Execution Layer
  • Limit bn256Pairing precompile input size
• Consensus Layer
  • Reduce Channel Timeout to 50

What's Changed

• Merge Optimism v1.5.0(Delta) by @ironbeer in #142
• Merge Optimism v1.7.0(Ecotone) by @ironbeer in #143
• Merge Optimism v1.7.7(Fjord) by @ironbeer in #144
• Merge Optimism v1.9.1(Granite) by @ironbeer in #145
• Replace Go dependency on op-geth with oasys-op-geth by @ironbeer in #151
• Upgrade to Optimism v1.9.5 by @ironbeer in #152
• Remove ZeroFee code to resolve recurring conflicts by @ironbeer in #153
• Remove Oasys L1 contracts to resolve recurring conflicts by @ironbeer in #154
• Fix dockerfile by @ironbeer in #155
• Upgrade to granite by @ironbeer in #156
• Fix github actions error by @ironbeer in #157

Full Changelog: v1.1.0...v1.2.0