Base Mainnet Jovian upgrade on December 2nd at 16:00:01 UTC

Scheduled Maintenance Report for Base

Completed

The scheduled maintenance has been completed.

Posted Dec 04, 2025 - 18:25 UTC

Scheduled

On Tuesday December 2nd, 2025 at 16:00:01 UTC (Unix timestamp 1764691201), the Base Mainnet network will undergo the Jovian upgrade.

Operators of Base Mainnet nodes must upgrade to the latest release of the Base node software here: https://github.com/base/node/releases/tag/v0.14.3

More information about the Jovian upgrade can be found here: https://docs.optimism.io/notices/upgrade-17

One of Jovian's key features is the minimum base fee. On Thursday, December 4, the minimum base fee for Base Mainnet will be set to 200,000 wei so we can gather data on how this affects the chain. We expect less than 5% of transactions to be affected by this change. Going forward, this feature will make it easier for us to raise the gas target and reduce the average base fee during high activity.

Posted Nov 25, 2025 - 14:51 UTC

This scheduled maintenance affected: Mainnet (Client Software).