[Standard] Polkadot SDK Upgrade to polkadot-stable2603

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted Apr 07, 2026 - 17:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Apr 07, 2026 - 09:00 UTC

Scheduled

We are upgrading our Polkadot SDK nodes to polkadot-stable2603 (v1.22.0). During the maintenance window, brief interruptions may occur. This is a major stable release with networking, sync, and runtime improvements.

API Changes

pallet-democracy / referenda — Voted and VoteRemoved events modified Both events now include a poll_index field. Indexers or event decoders consuming these events will need to be updated to handle the new field.

pallet-balances — new events added Several previously missing balance events are now emitted. Indexers should be updated to handle the new event types.

pallet-bags-list — ScoreUpdated event modified This event is now only emitted when the score actually changes. Consumers expecting it on every operation will see reduced event frequency.

https://github.com/paritytech/polkadot-sdk/releases/tag/polkadot-stable2603
Posted Mar 31, 2026 - 14:59 UTC
This scheduled maintenance affected: Polkadot (Mainnet - JSON RPC API, Mainnet - Websockets API, Mainnet - substrate-api-sidecar).