[Urgent] Scheduled: Infrastructure Upgrade - Multiple Networks

Scheduled Maintenance Report for QuickNode

Completed

The scheduled maintenance has been completed.

Posted Sep 25, 2025 - 16:00 UTC

In progress

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

Posted Sep 25, 2025 - 12:00 UTC

Scheduled

Scheduled maintenance will be performed during the maintenance window on multiple chains:
- Optimism
- Optimism Sepolia
- Base
- Unichain
- Ink
- Unichain
- Worldchain
- Worldchain Sepolia

**Client Updates:**
• op-reth: Upgrading to v0.12.9

**Upgrade Details:**
• Scheduled for Sept 25th at 12:00 UTC

**Release Notes Summary:**
**RPC Service Update - Base Node v0.12.9**

• **Bug Fixes**: Resolved issues with `eth_call` and `eth_estimateGas` methods through Reth 1.8.1 upgrade

• **Enhanced Features**: Added support for `eth_call`, `eth_estimateGas`, and `eth_simulateV1` methods against pending flashblocks state

**Additional Information:**
• Release notes: https://github.com/base/node/releases/tag/v0.12.9

Posted Sep 24, 2025 - 10:23 UTC

This scheduled maintenance affected: Optimism (Mainnet — JSON-RPC API, Mainnet — Websockets API, Sepolia - JSON RPC, Sepolia - Websockets API), Base (Mainnet — JSON-RPC API, Mainnet — WebSocket API, Sepolia - JSON-RPC API, Sepolia - WebSocket API), Ink (Beta) (Mainnet — JSON-RPC API, Mainnet — Websockets API, Sepolia — JSON-RPC API, Sepolia — Websockets API), World Chain (Mainnet — JSON-RPC API, Mainnet — Websockets API, Sepolia — Websockets API, Sepolia — JSON-RPC API), and Unichain (Beta) (Mainnet — JSON-RPC API, Mainnet – Websockets API, Sepolia — JSON-RPC API, Sepolia – Websockets API).