[Tracker] Isthmus Upgrade

[smartcontracts]

General tracking for features proposed to be included in the Isthmus upgrade.

Pre-requisite

• [Tracker] OPCM Upgrades (Upgrade 12) #13069

Isthmus Candidates

Smart contract work

• EVM Engineering: Update all 0.8.15 code to 0.8.25 (Isthmus) #11527
  • Implementation
  • PR: make Cannon libraries version agnostic
• L2 Genesis Simplification #11558
• EVM Engineering: Standardize a custom error convention (Isthmus) #12478
  • Design Doc
  • Implementation
• EVM Engineering: Isthmus stylistic cleanup #13058
  • PR: import statement cleanup
  • PR: move interfaces to new top-level folder
• [Tracker] EVM Engineering: solidity code coverage (Isthmus) #11093
  • PR: fix stack too deep error in PermissionedDisputeGame
  • PR: fix stack too deep error in MIPS
  • PR: fix stack too deep in LibKeccak
• [Tracker] Proofs: Incident Response Improvements (Upgrade 12) #12172
• Include Custom Gas Token code

Other features

• Isthmus: L2 withdrawals-root in block header [TRACKER] #12044
  • PR op-geth: Isthmus: Tests and misc updates for L2 withdrawals root
  • PR op-geth: Isthmus: withdrawals root in block header
  • PR: Config: Add support for Isthmus
  • PR: Updates for withdrawals root in block header
  • PR: op-program use withdrawalRoot from header if Isthmus
  • PR: Action Tests
• Operator Fee
  • Design Doc
• Header Accumulator
• EIP-7702: Set EOA account code specs#511

Probably NGMI this time

• OP Stack: Support Pectra (Isthmus) #12435
• Deposit Queue
• Decouple block times between L1 and L2 (or L2 and L3)

---

NB - the above is all subject to further discussion and agreement; nothing is set in stone just yet. But we are no longer taking further submissions for Isthmus (unless they are extraordinarily important).

[emhane]

op-reth tracking issue paradigmxyz/reth#13145

[mdehoog]

Hey 👋 what do we think of including the consensus nonce change (as an alternative to the deposit queue)? I've created a tracking issue here: #13543, hoping to have it code complete early next week.

Moved to Jovian

[emhane]

could you please strike through withdrawals root list to reflect the decision made in yesterdays meeting to exclude it from isthmus. same with operator fee @smartcontracts