Flow Mainnet Protocol Upgrade

Scheduled Maintenance Report for Flow

Completed

The scheduled maintenance has been completed.

Posted Apr 03, 2025 - 15:10 UTC

In progress

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

Posted Apr 03, 2025 - 15:00 UTC

Scheduled

Flow Mainnet will undergo a protocol upgrade — with **no downtime** expected, thanks to the new Rolling Upgrade approach. This marks the successful execution of the first-ever Rolling Upgrade on Flow:
https://flow.com/post/rolling-protocol-upgrades

This upgrade activates the Epoch Fallback Mode Recovery mechanism. Learn more in the v0.39.0 release notes:
https://github.com/onflow/flow-go/releases/tag/v0.39.0

🔔 Action Required: If you're operating a Flow node, please update to version v0.39.0 immediately. Details here:
https://forum.flow.com/t/reminder-to-update-your-flow-nodes-to-v0-39-0/7396

Posted Mar 31, 2025 - 20:53 UTC

This scheduled maintenance affected: Flow mainnet core components (Collection Finalization, Block Finalization, Transaction Execution, Block Sealing) and Flow mainnet Access APIs (GRPC API, GRPC Web API, REST API, EVM Gateway).