[Standard] Op-stack chains (Mainnets and Testnets) - Upgrade to op-node-v1.19.6 & op-reth-v2.4.3

Scheduled for Sep 16, 00:00 - 06:00 UTC

Scheduled

We are upgrading our Op-stack infrastructure to op-node v1.19.6 & op-reth-v2.4.3. The upgrade addresses security-sensitive dependency updates, hardens derivation logic against batch-splicing attacks, and fixes a sequencer shutdown hang.

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

RPC Changes:
Deposit transaction decoding — Logic has been hardened to improve validation and security of deposit transaction processing in RPC responses.

https://github.com/ethereum-optimism/optimism/releases/tag/op-node/v1.19.6
https://github.com/ethereum-optimism/optimism/releases/tag/op-reth/v2.4.3

Posted Sep 09, 2026 - 17:16 UTC

This scheduled maintenance affects: Optimism (Mainnet — JSON-RPC API, Sepolia - JSON RPC), Cyber (Mainnet - JSON-RPC API, Sepolia — JSON-RPC API), Mode (Select Access) (Mainnet — JSON-RPC API), Zora (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), Soneium (Beta) (Mainnet — JSON-RPC API), and Katana (Mainnet - JSON-RPC API).