[Polkadot & Sidecar API] - Upgrade to Polkadot v1.20.1 & Sidecar API v20.10.2

Scheduled Maintenance Report for Blockdaemon

Completed

The scheduled maintenance has been completed.
Posted Nov 03, 2025 - 13:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Nov 03, 2025 - 11:01 UTC

Update

Blockdaemon will update the Sidecar API to the latest version (v20.10.2), released today. This update includes a critical fix and will be performed during the planned maintenance window. We apologise for any inconvenience this may cause.
Posted Oct 30, 2025 - 15:07 UTC

Scheduled

Blockdaemon will update all Westend, Kusama and Polkadot nodes to v1.20.1 as well as Sidecar API to v20.10.1 on 11/03/25. We are updating our nodes due to a release from the Parity foundation. This update applies to all Blockdaemon Westend, Kusama and Polkadot 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-stable2509-1
https://github.com/paritytech/substrate-api-sidecar/releases/tag/v20.10.1
Posted Oct 29, 2025 - 13:44 UTC
This scheduled maintenance affected: Staking Reporting API (Polkadot Staking Reporting), Staking API (Polkadot Staking API), Blockdaemon RPC API (Kusama Native API, Polkadot Native API), Blockdaemon Validators (Kusama Validator, Polkadot Validator), and Protocols (Dedicated Nodes) (Kusama, Polkadot).