# Estee Lauder x Microsoft AI Innovation Lab revision history

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

Partnership: [Estee Lauder x Microsoft AI Innovation Lab](/partnerships/estee-lauder-x-microsoft-ai-innovation-lab.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/estee-lauder-x-microsoft-ai-innovation-lab/history. REST: /v1/partnerships/5c1b568f-8b9f-4deb-8dd2-c1edd629f588/history. HTML: [/partnerships/estee-lauder-x-microsoft-ai-innovation-lab/history](/partnerships/estee-lauder-x-microsoft-ai-innovation-lab/history)._