[Polkadot] - Update to v1.21.2 & Sidecar API v20.14.0

Scheduled for Mar 3, 10:00 - 11:00 UTC

Scheduled

Blockdaemon will update Polkadot, Kusama and Westend nodes to v1.21.2 & Sidecar API v20.14.0 on 03/03/2026. We are updating our nodes due to a release from the Parity foundation. This update applies to all Blockdaemon Polkadot, Kusama and Westend nodes, 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.

If you want additional information please review the release notes here:
https://github.com/paritytech/polkadot-sdk/releases/tag/polkadot-stable2512-2
https://github.com/paritytech/substrate-api-sidecar/releases/tag/v20.14.0

Posted Feb 27, 2026 - 17:22 UTC

This scheduled maintenance affects: Chain Watch ($DOT - Polkadot), 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).