✨🔴 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