All Systems Operational
Flow Testnet Operational
Flow mainnet core components ? Operational
Collection Finalization ? Operational
Block Finalization ? Operational
Transaction Execution ? Operational
Block Sealing ? Operational
Flow mainnet Access APIs ? Operational
GRPC API ? Operational
GRPC Web API ? Operational
REST API ? Operational
EVM Gateway Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Past Incidents
Feb 20, 2025

No incidents reported today.

Feb 19, 2025
Flow Mainnet Network Issue
Postmortem - Read details
Feb 20, 01:11 UTC
Resolved - The incident has been resolved.
Feb 19, 22:26 UTC
Investigating - Flow Mainnet and Testnet are currently under maintenance due to performance issues, but should be back online soon. We will provide more updates shortly.
Feb 19, 21:50 UTC
Feb 18, 2025
Flow mainnet height co-ordinated upgrade
Completed - The Height Coordinated Upgrade on block height 103983000 is now complete.
Feb 18, 22:33 UTC
Verifying - Verifying the upgrade
Feb 18, 22:31 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 18, 22:00 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.
Feb 18, 21:01 UTC
Flow testnet height co-ordinated upgrade
Completed - The scheduled maintenance has been completed.
Feb 18, 21:45 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 18, 21:30 UTC
Scheduled - Flow testnet 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.
Feb 18, 20:58 UTC
Flow mainnet height co-ordinated upgrade
Completed - The scheduled maintenance has been completed.
Feb 18, 16:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 18, 16:00 UTC
Update - There is a breaking change to streaming Access API in this upgrade.

Several AccessAPI and ExecutionDataAPI streaming endpoints include a message_index field in the response which indicates the order of messages sent by the server so the client can detect if they missed processing any. Previously, some endpoints used 1 as the first index in a stream while others used 0. After the HCU, all endpoints will be consistent regarding message_index and start from index 0.

For more details, please refer to the breaking changes section in the pre-release notes - https://github.com/onflow/flow-go/releases/tag/v0.38.1.

These streaming APIs are fairly recent, therefore most apps will not be impacted.
Feb 14, 20:50 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.
Feb 14, 20:18 UTC
Flow Mainnet Network Issue
Resolved - This incident has been resolved.
Feb 18, 11:58 UTC
Investigating - Flow Mainnet is currently under maintenance to address an issue with transaction execution, and should be back online promptly.

Thank you for your patience
Feb 18, 10:49 UTC
Feb 17, 2025

No incidents reported.

Feb 16, 2025

No incidents reported.

Feb 15, 2025

No incidents reported.

Feb 14, 2025
Flow testnet height co-ordinated upgrade
Completed - The Testnet Height Coordinated Upgrade (HCU) is now complete.

Note: There will be a mainnet HCU next week.

Thank you.
Feb 14, 16:15 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 14, 16:00 UTC
Update - We will be undergoing scheduled maintenance during this time.
Feb 12, 20:06 UTC
Scheduled - Flow testnet 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.
Feb 12, 19:43 UTC
Feb 13, 2025

No incidents reported.

Feb 12, 2025

No incidents reported.

Feb 11, 2025
Flow testnet height co-ordinated upgrade
Completed - The scheduled maintenance has been completed.
Feb 11, 16:10 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Feb 11, 16:00 UTC
Scheduled - Flow testnet 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.
Feb 10, 20:43 UTC
Feb 10, 2025

No incidents reported.

Feb 9, 2025

No incidents reported.

Feb 8, 2025

No incidents reported.

Feb 7, 2025

No incidents reported.

Feb 6, 2025

No incidents reported.

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