[Polkadot API / Event Streaming] – Asset Hub support, Polkadot v1.19.2 & Sidecar API v20.7.2

Scheduled for Sep 17, 09:00 - 12:00 UTC

Scheduled

Blockdaemon will update all Kusama and Polkadot RPC nodes supporting our API and Event Streaming services to v1.19.2 as well as Sidecar API to v20.7.2 on 09/17/25. We are updating our nodes due to a release from the Parity foundation. Alongside these protocol version upgrades, we will also perform internal maintenance to update supporting systems and enable Asset Hub support. There will be planned downtime of up to 30 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-stable2506-2
https://github.com/paritytech/substrate-api-sidecar/releases/tag/v20.7.0
https://github.com/paritytech/substrate-api-sidecar/releases/tag/v20.7.1
https://github.com/paritytech/substrate-api-sidecar/releases/tag/v20.7.2

Posted Sep 11, 2025 - 15:37 UTC

This scheduled maintenance affects: Blockdaemon Universal API, Event Steaming, Staking Reporting API (Polkadot Staking Reporting), and Blockdaemon RPC API (Kusama Native API, Polkadot Native API).