elastic/ecs v9.4.0

ECS 9.4.0

on GitHub

Schema Changes

Added

• Add entity.attributes.*, entity.lifecycle.last_activity, and entity.relationships.* fields from RFC 0054. Introduce reusable entity_reference field set for shared relationship identifier keys. #2598

Tooling and Artifact Changes

Added

• Add alpha field maturity attribute, mirroring beta with mutual exclusion. #2599
• Document field stability definitions (alpha, beta, GA) in design principles. #2599

Improvements

• Increase composable template total_fields.limit from 2500 to 3000. #2598
• Increase composable template total_fields.limit from 2000 to 2500. #2584 (superseded by #2598)
• Remove the experimental/ build pipeline and unused cgroup.* fields; alpha and beta fields now live in schemas/. #2599