[Standard] OP Stack - Mainnets & Testnets - Upgrade to op-reth v2.4.2 & op-node v1.19.4

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted Aug 19, 2026 - 08:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Aug 19, 2026 - 00:00 UTC

Update

We will be undergoing scheduled maintenance during this time.
Posted Aug 12, 2026 - 17:02 UTC

Scheduled

Standard - OP Stack (Optimism, Unichain, Ink, Lisk, B3, Cyber, Mode, Zora, Soneium) - Mainnet and Testnet - Upgrade to op-reth v2.4.2 and op-node v1.19.4

We are upgrading our OP Stack infrastructure to op-reth v2.4.2 and op-node v1.19.4 across Optimism, Unichain, Ink, Lisk, Cyber, Mode, Zora, and Soneium mainnet and testnet. This release includes transaction pool admission changes, secure flashblocks endpoint fixes, deposit gas accounting hardening, and proofs stability and correctness improvements.

During the maintenance window, brief interruptions to RPC availability may occur.

RPC Changes:
- eth_getBlockReceipts — This method is now forwarded to the historical endpoint for improved performance and compatibility.
- Transaction pool admission — Forwarded transaction admission is now opt-in. Users who rely on forwarded transactions being automatically accepted into the pool should confirm this setting is enabled, otherwise those transactions may silently not be admitted.
- Flashblocks — Secure (wss://) flashblocks endpoints now connect correctly. Previously, wss:// flashblocks URLs would fail on the initial TLS handshake.

https://github.com/ethereum-optimism/optimism/releases/tag/op-reth/v2.4.1
https://github.com/ethereum-optimism/optimism/releases/tag/op-reth/v2.4.2
https://github.com/ethereum-optimism/optimism/releases/tag/op-node/v1.19.4
Posted Aug 12, 2026 - 16:43 UTC
This scheduled maintenance affected: Optimism (Mainnet — JSON-RPC API, Sepolia - JSON RPC), Cyber (Mainnet - JSON-RPC API, Sepolia — JSON-RPC API), Mode (Select Access) (Mainnet — JSON-RPC API), B3 (Mainnet — JSON-RPC API, Sepolia — JSON-RPC API), Ink (Beta) (Mainnet — JSON-RPC API, Sepolia — JSON-RPC API), Lisk (Select Access) (Mainnet — JSON-RPC API), Unichain (Beta) (Mainnet — JSON-RPC API, Sepolia — JSON-RPC API), and Soneium (Beta) (Mainnet — JSON-RPC API).