[Standard] [Mainnet | Testnet] OP Stack Upgrade (op-geth v1.101701.0 / op-node v1.16.9 / op-reth v1.11.3)

Scheduled for Mar 24, 11:00 - 19:00 UTC

Scheduled

We are upgrading our OP Stack node components across the following networks: Optimism, Base, Cyber, Fraxtal, Ink, Lisk, Mode, Soneium, Unichain, World Chain, and Zora. During the maintenance window, brief interruptions to RPC availability may occur. This release bundle contains security fixes from upstream go-ethereum v1.17.0 and v1.17.1 and has no user-facing RPC changes.

https://github.com/ethereum-optimism/op-geth/releases/tag/v1.101701.0 https://github.com/ethereum-optimism/optimism/releases/tag/op-node%2Fv1.16.9 https://github.com/ethereum-optimism/optimism/releases/tag/op-reth%2Fv1.11.3

Posted Mar 19, 2026 - 20:10 UTC

This scheduled maintenance affects: Optimism (Mainnet — JSON-RPC API, Mainnet — Websockets API, Sepolia - JSON RPC, Sepolia - Websockets API), Cyber (Mainnet - JSON-RPC API, Mainnet - Websockets API, Sepolia — JSON-RPC API, Sepolia — Websockets API), Mode (Select Access) (Mainnet — JSON-RPC API, Mainnet — Websockets API), Zora (Select Access) (Mainnet — JSON-RPC API, Mainnet — Websockets API), Fraxtal (Select Access) (Mainnet — JSON-RPC API, Mainnet — Websockets 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), Lisk (Select Access) (Mainnet — JSON-RPC API, Mainnet — Websockets API), Unichain (Beta) (Mainnet — JSON-RPC API, Mainnet — Streams, Sepolia — JSON-RPC API, Sepolia – Websockets API), and Soneium (Beta) (Mainnet — JSON-RPC API, Mainnet — Websockets API).