generated: '2026-07-20'
method: searched
source: https://docs.arbitrum.io + https://github.com/OffchainLabs/nitro/releases + https://status.arbitrum.io
versioning:
  scheme: semver
  component: arbitrum-nitro
  current: v3.11.2
  arbos: '61'
  docs: https://github.com/OffchainLabs/nitro/releases
  notes: >-
    Two release tracks: Nitro node software (semver) and consensus/ArbOS
    upgrades (consensus-vNN) which are governance-gated and change the
    state-transition function.
status_page: https://status.arbitrum.io/
sla:
  url: null
  notes: Public L2 network; no per-user uptime SLA is published. Operational status is on the status page.
deprecation:
  policy_url: null
  sunset_header: false
  notes: >-
    No REST/HTTP deprecation policy (no REST API surface). Protocol-level
    changes ship via ArbOS/consensus upgrades announced in release notes and
    governed via Arbitrum DAO on-chain governance.