---
title: FW v6.1.33 / OS 12.15.10.91 / MCU 1.2.18 Release
slug: support/fw-v6133-os-12151091-mcu-1218-release
docTags: 
createdAt: 2026-10-02T19:43:10.249Z
---

**Enclosure Firmware Version 6.1.33 / OS 12.15.10.91 / MCU 1.2.18 Release Notes**

**Release Dates**

- Production Go Live: October 5, 2026
- Field Go Live: October 5, 2026

**Platforms**

ODIN

**Affected Models**

All TS2XXX models on the ODIN hardware platform.

**Firmware Version**

- **Production:** FW v6.1.33 / OS v12.15.10.91 / MCU v1.2.18 should be installed on all new production models on the ODIN hardware platform.
- **Field:** The same FW v6.1.33 / OS v12.15.10.91 / MCU v1.2.18 will be installed on all field-installed models on the ODIN hardware platform.

**Overview of Changes**

This release delivers touchscreen and web-interface enhancements for network and cellular configuration, improves update reliability, resolves an intermittent temperature-reading issue, and includes hardware stability fixes along with underlying security hardening across the platform.

**Critical Bug Fixes**

General stability improvements and bug fixes.

**Device Definitions**

***No device definition changes are required to adopt this release. ***

As always, it is recommended that customers use the most current device definitions available unless instructed otherwise by the Terso Customer Success team.

·        FW v6.1.xx, Ambient Cabinet

·        FW v6.1.xx, NonRFID

·        FW v6.1.xx, Standard Freezer

·        FW v6.1.xx, Standard Refrigerator

·        FW v6.1.xx, ULT

·        FW v6.1.xx, Lockless Cabinet