---
title: 20260831 Enclosure OS 12.13.12 Release
slug: support/20260831-enclosure-os-121312-release
docTags: 
createdAt: 2026-08-26T20:16:34.216Z
---

**Iris Enclosure OS Version 12.13.12 Release Notes**

**Release Dates**

- Field Go Live: Week of August 31, 2026

**Platforms**

Iris

**Affected Models**

All Iris-based hardware platform models.

**Firmware Version**

- **Field:** OS 12.13.12 will be installed on all field-installed Iris-based models.

**Overview of Changes**

This release updates the Iris operating system from Debian Bullseye (11) to Bookworm (12), including an updated kernel, to keep the platform current and ready for future firmware support.

**Critical Bug Fixes**

No critical bug fixes are included in this release.

**Device Definitions**

No device definition changes are required to adopt this release.