[Standard] Polkadot SDK Upgrade to polkadot-stable2603-1

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted May 04, 2026 - 22:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted May 04, 2026 - 18:00 UTC

Scheduled

We are upgrading our Polkadot SDK node to `polkadot-stable2603-1`.
During the maintenance window, brief interruptions may occur.
This release contains protocol improvements, consensus stability fixes, and pallet bug fixes.

RPC 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-stable2603-1
Posted May 04, 2026 - 14:35 UTC
This scheduled maintenance affected: Polkadot (Mainnet - JSON RPC API, Mainnet - Websockets API, Mainnet - substrate-api-sidecar).