Flow Mainnet Height Co-ordinated upgrade

Scheduled Maintenance Report for Flow

Completed

The Height Coordinated Upgrade is now complete. It occurred at block height 134918777.
Transaction execution has resumed.

Posted Dec 04, 2025 - 16:14 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Dec 04, 2025 - 16:00 UTC

Scheduled

Flow mainnet will undergo a height-coordinated upgrade.

The upgrade will NOT cause any network downtime except for transaction execution being paused for a few minutes while the execution nodes restart.

Posted Dec 02, 2025 - 19:29 UTC

This scheduled maintenance affected: Flow mainnet core components (Transaction Execution, Block Sealing).