Arbitrum’s Nitro team has published version 3.11.2 of the Nitro node as a Docker image, simplifying deployment for developers and validators. The image is hosted on Docker Hub under the tag offchainlabs/nitro-node:v3.11.2-3599aca.
The release includes default command‑line flags in its entrypoint. When overriding the entrypoint, users should replicate the following command: /usr/local/bin/nitro --validation.wasm.allowed-wasm-module-roots /home/user/nitro-legacy/machines,/home/user/target/machines. This ensures the node can locate the required WASM modules.
Validators that do not use a split validation server—most validators in the ecosystem—should use the provided image directly. This approach reduces configuration complexity while maintaining compatibility with the Nitro protocol.
The Nitro node continues to support the Arbitrum One network, providing efficient roll‑up processing and validation. The release notes do not introduce new features beyond the Docker packaging, but they confirm the stability and readiness of the node for production use.
Developers can pull the image with a single Docker command and start the node with the default settings, or customize the entrypoint as needed. The release demonstrates Offchain Labs’ commitment to easing the operational burden on validators and node operators.
For more details, refer to the official release page on GitHub, which includes the full changelog and deployment instructions.