Ethereum Mainnet Fusaka Network Upgrade

Scheduled Maintenance Report for Alchemy

Completed

The scheduled maintenance has been completed.
Posted Dec 03, 2025 - 22:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Dec 03, 2025 - 00:00 UTC

Scheduled

The Fusaka network upgrade on Ethereum Mainnet will happen via hard fork on December 3rd at 21:49:11 UTC (or ~4:49 pm EST). Our team has been actively preparing our nodes across Eth Mainnet and dependant L2’s to ensure the smoothest upgrade possible. No action required from your end.

Read more about Fusaka here:
1. https://blog.ethereum.org/2025/09/26/fusaka-testnet-announcement
2. https://www.alchemy.com/blog/ethereum-fusaka-upgrade-dev-guide-to-12-eips
Posted Dec 02, 2025 - 23:49 UTC
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