# Open Robotics x Ekumen Labs ROS and Gazebo revision history

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

Partnership: [Open Robotics x Ekumen Labs ROS and Gazebo](/partnerships/open-robotics-x-ekumen-labs-ros-and-gazebo.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/open-robotics-x-ekumen-labs-ros-and-gazebo/history. REST: /v1/partnerships/e5858f3a-ad33-47e6-8b54-f0818240dbdd/history. HTML: [/partnerships/open-robotics-x-ekumen-labs-ros-and-gazebo/history](/partnerships/open-robotics-x-ekumen-labs-ros-and-gazebo/history)._