# Tennant X4 ROVR revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Model: [Tennant X4 ROVR](/models/tennant-x4-rovr.md)

## Recorded posture

- First recorded event: 2026-06-06
- Last material change: 2026-06-06
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-06**: created (source: https://www.braincorp.com/resources/tennant-announces-full-specification-capabilities-of-x4-rovr-autonomous-floor-cleaning-machine-its-first-purpose-built-robotic-scrubber) (verified)

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date. To restate a recorded change, write a new event through the updateEntityField chokepoint.

_Canonical URL: /models/tennant-x4-rovr/history. REST: /v1/models/197409ff-ec7d-4881-9bfe-a6c5674f4b5e/history. HTML: [/models/tennant-x4-rovr/history](/models/tennant-x4-rovr/history)._