[Polkadot, Kusama and Westend] - Upgrade to v1.21.3

Scheduled for Mar 30, 11:00 - 12:00 UTC

Scheduled

Blockdaemon will update all Polkadot Kusama and Westend nodes to v1.21.3 on March 30, 2026, starting at 11:00 UTC. We are updating our nodes due to a release from the Polkadot Foundation.

This update applies to all Blockdaemon Polkadot Kusama and Westend nodes, and there will be planned downtime of up to 10 minutes per node.

We have tested the release and do not anticipate any unexpected downtime other than mentioned above as a result of the update. If you have any questions or concerns, please reach out to your Customer Success Manager.

Release Notes:
If you want additional information, please review the release notes here:
https://github.com/paritytech/polkadot-sdk/releases/tag/polkadot-stable2512-3v1.21.3

Posted Mar 25, 2026 - 11:30 UTC

This scheduled maintenance affects: Staking Reporting API (Polkadot Staking Reporting), Staking API (Polkadot Staking API), Blockdaemon RPC API (Polkadot Native API), Blockdaemon Validators (Polkadot Validator), and Protocols (Dedicated Nodes) (Polkadot).