Flow Mainnet Height Co-ordinated Upgrade

Scheduled Maintenance Report for Flow

Completed

The Height Coordinated Upgrade on mainnet is now complete.
Block height for HCU: 140478444
Posted Jan 29, 2026 - 15:52 UTC

Verifying

Verification is currently underway for the maintenance items.
Posted Jan 29, 2026 - 15:49 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Jan 29, 2026 - 15:30 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 Jan 28, 2026 - 21:44 UTC
This scheduled maintenance affected: Flow mainnet core components (Transaction Execution).