OffchainLabs/nitro v3.10.2

Arbitrum Nitro v3.10.2

on GitHub

Important Note: Once a database is run with v3.10.x, the database cannot be used with v3.9.9.

This release is available as a Docker Image on Docker Hub at offchain-labs/nitro-node:v3.10.2-db30ef0
This Docker image specifies default flags in its entrypoint which should be replicated if you're overriding the entrypoint: /usr/local/bin/nitro --validation.wasm.allowed-wasm-module-roots /home/user/nitro-legacy/machines,/home/user/target/machines\

Special note: On Monday, May 18, 2026 at 17:00 UTC, ArbOS 60 will activate on the Arbitrum Sepolia chain. Arbitrum Sepolia node operators must upgrade to Nitro v3.10 ahead of this activation to continue syncing the chain. This is not a required upgrade for Arbitrum One at this time, the date for Arbitrum One ArboOS upgrade has not been set yet.

Sepolia validators can use block-validator.pending-upgrade-module root="0x7a9e6a77354888257a9989ce0b6bb39df5fedf222d453932933fdf7a489cbb57" to validate against the planned arbos-60 upgrade

Important for any chains still on ArbOS40:

• If you're running a validator without a split validation server (this will be true of most validators), you should instead use the image offchain-labs/nitro-node:v3.10.2-db30ef0-validator which has the extra script /usr/local/bin/split-val-entry.sh as the default entrypoint (no need to override the default entrypoint). This will run both v3.10.2 and v3.7.6 validator workers for you.
• If you are using a split validator, you do not want to use -validator image, you need to run a validator worker on v3.7.6 as well as a worker for v3.10.2
• Arbitrum Chain SDK v0.25.2 (along with consensus_v51.1) is required for ArbOS51

Important for any chains that previously upgraded to ArbOS51 with consensus_v51:

• Validator should use configuration option --node.block-validator.pending-upgrade-module-root="" to avoid performing unnecessary work trying to validate consensus_v51.1.

v3.10.2 - 2026-06-02

Configuration

• Add --execution.transaction-filtering.enable master switch (default false), replaces --execution.address-filter.enable.

Fixed

• Improve BoLD assertion poster logs.
• Fixed initialization of redis-validator.

Added

• NIT-4804: address-filter now supports hashing_scheme: "sha256-rawbytesinput"

Changed

• EnableETHCallFilter now scopes to eth_estimateGas only; no longer gates prechecker filtering.
• Skip prechecker transaction-filter dry-run on sequencer nodes.

Internal

• Cache hash keys for MultiGasFees substorage.