[Optimism & Base] - Sepolia Testnet Holocene Hard Fork
Scheduled for Nov 26, 15:00 - 16:00 UTC
Scheduled
The Holocene Hard Fork will activate on the OP Superchains (Base and Optimism) for Sepolia testnet on Tue Nov 26 @ 15:00:00 UTC, and brings a number of improvements to the protocols. You can find the complete list of changes here:

https://github.com/ethereum-optimism/developers/discussions/658

What’s included in Holocene?

Holocene block derivation: a set of changes that render the derivation pipeline stricter and simpler, improving worst-case scenarios for the Fault Proof System and Interoperability.

EIP-1559 configurability: The elasticity and denominator EIP-1559 parameters become configurable via the SystemConfig L1 contract, allowing the gas target and gas limit to be configured independently.

MIPS contract upgrade: Updates to support additional calls made by the new op-program version.

We do not expect any downtime as a result of the hard fork. If you have any questions, please contact your CSM (Customer Success Manager).
Posted Nov 20, 2024 - 15:51 UTC
This scheduled maintenance affects: Blockdaemon RPC API (Base Native API, Optimism Native API) and Protocols (Dedicated Nodes) (Base, Optimism).