Offchain Labs released Arbitrum Nitro v3.11.3 together with updated Docker images for node operators. The official release notes highlight several changes around execution and transaction filtering. Panics during prefetch-tx execution are now captured and logged instead of being returned through the previous error path.
Retryable submission filtering was also corrected to account for the party that actually receives funds and to catch filtered L1 senders or depositors that could previously slip through. Transactions rejected by the sequencer because of filtering now return the explicit RPC message `Transaction rejected by chain policy` instead of a generic `internal error`. The same message is used when tracing onchain-filtered transactions.
Filtering report logging was tightened as well. Reports are logged on the node side, while unbounded fields are truncated to keep entries compact. The `cmd/filtering-report` forwarder no longer logs the full report body; forward success or failure logs include only the report ID and transaction hash. This makes operational logging more focused and reduces unnecessary payload exposure.
For most validators running without a separate split validation server, the notes point to `offchainlabs/nitro-node:v3.11.3-beb2108-validator`. Operators overriding the standard image entrypoint are also told to preserve the image's default flags. Orenix Radar classifies this as an Arbitrum developer and infrastructure update rather than an unsupported claim about network performance or ARB price impact.