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---
- name: ecs
  title: ECS
  group: 2
  description: >
    Meta-information specific to ECS.
  type: group
  fields:

    - name: version
      level: core
      type: keyword
      required: true
      short: ECS version this event conforms to.
      description: >
        ECS version this event conforms to. `ecs.version` is a required field and must exist in all events.

        When querying across multiple indices -- which may conform to slightly
        different ECS versions -- this field lets integrations adjust to the
        schema version of the events.
      example: 1.0.0