[Standard] Scheduled: Cosmos Mainnet - Upgrade Gaiad to v27.0.0

Scheduled for Mar 11, 13:30 - 15:30 UTC

Scheduled

Scheduled maintenance will be performed on the Cosmos Mainnet during the scheduled maintenance window.

**Client Updates:**
- Gaiad: Upgrading to v27.0.0

**Upgrade Details:**
- Governance upgrade via proposal: https://www.mintscan.io/cosmos/proposals/1025
- Upgrade Height: 30,151,300 (Roughly at Mar 11th 2026, 14:10:00 UTC)
- There will be a short period of downtime (a few minutes) during the upgrade.

**Release Notes Summary:**
- **Multi-send transaction behavior change:** Transactions using multi-send messages now incur a gas surcharge and are subject to a limit on the number of recipients.

**Additional Information:**
- Full release notes: https://github.com/cosmos/gaia/releases/tag/v27.0.0

Posted Mar 05, 2026 - 02:50 UTC

This scheduled maintenance affects: Cosmos (Cosmos Mainnet — REST API).