generated: '2026-07-20'
method: searched
source: https://docs.minaprotocol.com/network-upgrades + https://github.com/o1-labs/o1js/releases
versioning:
  scheme: semver
  current: 2.15.0
  subject: o1js
  docs: https://github.com/o1-labs/o1js/releases
protocol_upgrades:
  model: hard-fork (network-wide, not backward compatible)
  docs: https://docs.minaprotocol.com/network-upgrades
  recent:
    - name: Berkeley
      summary: Transition to the Berkeley proof system with zkApp support.
    - name: Mesa
      summary: Expanded zkApp state, automode upgrades, protocol improvements.
deprecation:
  policy_url: null
  sunset_header: false
sla:
  url: null
status_page: null
deprecated_operations: []
notes: >-
  o1 Labs ships developer frameworks (o1js) versioned with semver plus dated GitHub
  releases, and coordinates Mina Protocol network upgrades as documented hard forks
  (Berkeley, Mesa). No formal API deprecation policy, SLA, or hosted status page was
  found (status.minaprotocol.com does not resolve).