Zetachain V27 Mainnet Upgrade

Scheduled Maintenance Report for ZetaChain

Completed

The scheduled maintenance has been completed.
Posted Mar 08, 2025 - 17:42 UTC

Update

We will be undergoing scheduled maintenance during this time.
Posted Feb 07, 2025 - 05:18 UTC

Scheduled

v27 Upgrade: Important Upgrade Information

The v27 upgrade includes a performance enhancing but heavy IAVL store migration which requires special attention from validator operators.

Key Points:
• Validators using cosmovisor must pre-download the correct binary to their upgrades/v27/bin directory
• Validators are recommended to ensure "iavl-disable-fastnode = true" to be set in app.toml to avoid downtime.
• Failure to do this may cause your node to go offline for several hours while it processes the migration

Additional Technical Notes:
• Cosmovisor auto-download will not work for this upgrade due to the hash of a different binary being used for zetaclientd-linux/arm64 in the proposal
• Cosmovisor users should manually place correct binaries in cosmovisor/upgrades/v27/bin directory before the upgrade is reached
• Monitor the upgrade status in your validator logs
• Join the our nodes-general discord channel for real-time support during the upgrade

For additional support or questions, please contact the technical team through our official channels.
Posted Feb 07, 2025 - 15:00 UTC
This scheduled maintenance affected: Mainnet (ZetaChain Mainnet).