Hedera Mainnet Blockchain halt during an upgrade on August 20th, 2025

Scheduled for Aug 20, 17:00 - 18:00 UTC

Scheduled

Hedera Mainnet Blockchain will perform an upgrade on August 20th, 2025 17:00 UTC.
The upgrade will be completed once the network’s nodes finish upgrading.
A short while before that time, Fireblocks will halt all activities on the Hedera blockchain, as the network may be disrupted during the upgrade, which is expected to last 60 minutes.
Once the upgrade is completed, Fireblocks will re-enable the activity.
Posted Aug 14, 2025 - 10:39 UTC
This scheduled maintenance affects: Blockchain nodes (Hedera Hashgraph).