# CRRC x Rolls-Royce MTU Engine Partnership revision history

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

Partnership: [CRRC x Rolls-Royce MTU Engine Partnership](/partnerships/crrc-x-rolls-royce-mtu-engine-partnership.md)

## Recorded posture

- First recorded event: 2026-08-22
- Last material change: 2026-08-22
- Material event count: 1
- Editorial event count: 0

## 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.

_Canonical URL: /partnerships/crrc-x-rolls-royce-mtu-engine-partnership/history. REST: /v1/partnerships/4b4ab74d-ca2a-49b4-bef0-4ae1a56b8b56/history. HTML: [/partnerships/crrc-x-rolls-royce-mtu-engine-partnership/history](/partnerships/crrc-x-rolls-royce-mtu-engine-partnership/history)._