# CST-100 Starliner revision history

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

Model: [CST-100 Starliner](/models/boeing-cst-100-starliner.md)

## Recorded posture

- First recorded event: 2026-06-01
- Last material change: 2026-06-01
- Material event count: 1
- Editorial event count: 0

## Material events (1)

- **2026-06-01**: created (source: https://en.wikipedia.org/wiki/Boeing_Orbital_Flight_Test_2) (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/boeing-cst-100-starliner/history. REST: /v1/models/2f0700c9-f59e-492d-89f4-8fdf64f0bb49/history. HTML: [/models/boeing-cst-100-starliner/history](/models/boeing-cst-100-starliner/history)._