[URGENT] World Chain Mainnet and Sepolia Testnet - Upgrade to world-chain v2.4.3 and op-node v1.19.5

Scheduled Maintenance Report for Quicknode

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted Sep 03, 2026 - 23:00 UTC

Scheduled

We are upgrading our World Chain Mainnet and Sepolia Testnet infrastructure to world-chain v2.4.3 and op-node v1.19.5 for the upcoming Karst fork.

Upgrade deadlines:

World Chain Sepolia - 12:00 UTC September 8, 2026 (1788868800)
World Chain Mainnet - 12:00 UTC September 21, 2026 (1789992000)

https://github.com/worldcoin/world-chain/releases/tag/v2.4.3
https://github.com/ethereum-optimism/optimism/releases/tag/op-node%2Fv1.19.5

Posted Sep 03, 2026 - 19:08 UTC

This scheduled maintenance affects: World Chain (Mainnet — JSON-RPC API, Mainnet — Websockets API, Mainnet — Streams, Mainnet — Webhooks, Sepolia — Websockets API, Sepolia — JSON-RPC API, Sepolia — Streams, Sepolia — Webhooks).