Isthmus Sepolia
Important
This is a required upgrade for any Sepolia Superchain node by Apr 17 as it contains the Isthmus activation on that date. It is a recommended upgrade for all chain operators because it contains an important bug fix of the transaction pool.
This is the Isthmus release for the Sepolia Superchain. It schedules the activation of the Isthmus fork on Thu Apr 17 16:00:00 UTC 2025 (unix timestamp 1744905600).
The following Sepolia chains have the Isthmus upgrade scheduled at this timestamp: base, creator-chain-testnet, ethernity, ink, metal, mode, op, soneium-minato, unichain, zora, lisk. It is mandatory to upgrade nodes for those chains before Apr 17.
🤝 The corresponding mandatory op-node release is v1.13.0.
Chain operators also need to upgrade their batchers to op-batcher/v1.12.0 before activating Isthmus on their chains.
Warning
The activation times for Mode, Metal, and Zora may be delayed in a future release. We will provide an update for those chains in a few days.
Transaction Pool Fixes (#558 #567)
The transaction pool got fixed to properly handle rollup cost (L1 Costs and Operator Fees (Isthmus only)) accounting. This was a longstanding bug that may sometimes have cause transactions to get rejected from the pool even thought the sender had enough balance, or the other way around where transactions could get accepted into the pool but then never get included because the sender's balance was too low.
What's Changed
- eth/catalyst: validate withdrawalsRoot in NewPayloadV4 by @geoknee in #544
- interop: Access List Ingress Filtering by @axelKingsley in #540
- interop: Check Access Lists in Builder by @axelKingsley in #541
- accounts/abi: estimate gas with access-list by @protolambda in #546
- Fix operator fee deposit by @sebastianst in #552
- superchain: Support reading superchain configs from arbitrary data. by @ajsutton in #556
- core/txpool: Take total rollup cost into account (L1 + operator fee) by @sebastianst in #558
- sr: update to 877ef2c1dc37b3cdc083819b2acb3e86881711ff (Isthmus Sepolia release) by @sebastianst in #566
- core/txpool: fix rollup cost accounting by @sebastianst in #567
Full Changelog: v1.101503.1...v1.101503.2
🚢 Docker Image: https://us-docker.pkg.dev/oplabs-tools-artifacts/images/op-geth:v1.101503.2