Upgrade 17 - Jovian Hard Fork

This release updates Jovian timestamps for the Metal L2 chain.

op-node v1.13.2 - Isthmus Mainnet

This is the Isthmus release for the Mainnet Superchain. It schedules the activation of the Isthmus fork on Fri May 9 16:00:00 UTC 2025 (unix timestamp 1746806401).

The corresponding mandatory op-geth release is v1.101503.4.

op-node/v1.12.1

Caution

If you're upgrading a Sepolia or Holesky node, you must take additional steps before upgrading to this (or a later) release!

Unless the chain of the node you're upgrading is in the following list of chains that have the Sepolia Pectra Blob Schedule fix already scheduled via their superchain-registry configuration, you must schedule the fix via rollup.json or overrides before upgrading!

List of chains that have the fix already scheduled:
soneium-minato, zora, op, unichain, base, mode, metal, creator-chain-testnet, ink, ethernity

If your chain is in this list, you must upgrade by 3/20 and no additional steps need to be taken before the upgrade.

If your chain is not in this list, you need to schedule the Pectra Blob Schedule fix to a timestamp that the chain's operator must decide on and publish to all its node operators.

See the release notes for v1.12.0 for more details.

Caution

This release also supersedes any op-node/v1.11.x release for L1 Pectra Readiness. So mainnet node operators must also upgrade to this (or a later) release by the time Ethereum mainnet activates Pectra. No additional steps must be taken for mainnet chains.

Important

All node operators must also upgrade op-geth to v1.101503.1.

op-node/v1.10.3

❗ All node operators are strongly recommended to upgrade to this release. It contains an urgent security fix (CVE-2025-24883). This fix is the only difference to the prior release v1.101411.5.

Also upgrade your L1 go-ethereum nodes to v1.14.13, which contains the same fix.

op-node v1.10.2 - Mainnet Holocene

❗ All node operators of Mainnet chains that follow the Mainnet Superchain must upgrade to this release of op-node and op-geth v1.101411.4.

The Mainnet Superchain activates Holocene on Thu 09 Jan 2025 18:00:01 UTC 2025 (unix ts 1736445601). This comprises the op, base, mode, metal, and zora Sepolia OP Stack chains.

op-node v1.10.1 - Mainnet Holocene

❗ All node operators of Mainnet chains that follow the Mainnet Superchain must upgrade to this release of op-node and op-geth v1.101411.3.

The Mainnet Superchain activates Holocene on Thu 09 Jan 2025 18:00:01 UTC 2025 (unix ts 1736445601). This comprises the op, base, mode, metal, and zora Sepolia OP Stack chains.

v1.9.1 - Optimistic Granite Mainnet release

✨🔴 Optimistic Granite Mainnet Release

❗ Mainnet operators are required to update to this release to follow the chain post-Granite. This release contains an optimistic Granite Mainnet activation time of Wed 11 Sep 2024 16:00:01 UTC. Node operators of any Mainnet OP Chains (OP, Base, Mode, Zora, and other chains in the Superchain Registry) must update before this activation timestamp, or their nodes will halt when the chains activate Granite.

The corresponding op-geth release is v1.101408.0.

Superchain parameters

This release updates the parameters for op-node and op-geth and will use the superchain contracts to fetch the rollup configuration and other variables.

It also adds a snapshot URL available for node operators to the README.

op-stack v1.7.7 - Optimistic Fjord Mainnet release

✨🔴 Optimistic Fjord Mainnet Release

❗ Mainnet operators are required to update to this release to follow the chain post-Fjord. This release contains an optimistic Fjord Mainnet activation time of Wed Jul 10 16:00:01 UTC 2024.

It is a recommended release for all node operators, as it contains various improvements and updates to the libp2p dependencies.

The corresponding op-geth release is v1.101315.2.

Optimism Governance Voting Cycle 23b

The Fjord activation contained in this release is still subject to approval during the currently ongoing Optimism Governance voting cycle 23b, see the Governance Proposal of the Fjord Protocol Upgrade. The reflection voting period ends on Jun 19 while the veto period ends on Jun 26, 19:00 UTC.

In the unlikely event that the veto period ends in a veto, we will publish a Veto Release. The fjord activation can also be disabled by setting the override.fjord configuration flag to a date in the far future, e.g. --override.fjord 2281580442. Always confirm in startup logs that overrides have been applied correctly.

Important Changes

• The missing Fjord override flag got added ethereum-optimism/optimism#10648
  op-node now supports specifying multiple L1 beacon endpoint fallbacks ethereum-optimism/optimism#10655
  • The flag l1.beacon-archiver got renamed to l1.beacon-fallbacks, but the old flag is retained for backwards compatibility, as are the old env vars.
• Multiple refactors of the derivation pipeline were performed ethereum-optimism/optimism#10580 ethereum-optimism/optimism#10580 ethereum-optimism/optimism#10642
• The batcher's and proposer's active sequencer follow mode got improved, ensuring that each endpoint is dialed exactly once ethereum-optimism/optimism#10696 ethereum-optimism/optimism#10705