# About this Release

EI Tunnel Manager 2.2 includes updates to many existing applications and adds new features. This version also adds support for a new generation of Edge Intelligence hardware.

## New features in Tunnel Manager 2.2

EI Tunnel Manager 2.2 adds the following new features:

- Support for the new EI-A3-TUNMGR- and EI-A9-TUNMGR-series devices.

- Image stitching across devices to allow single-image per side output on premium systems (add-on license).

- Pass-through access to web HMIs, including:

  - DataMan readers

  - 3D-A1000 dimensioning units

  - Mettler-Toledo TLD-950 dimensioning units

  - Remote Desktop

## Enhancements and Changes

EI Tunnel Manager 2.2 adds the following enhancements and changes:

- Adds the following additional protocols supported by Data Forwarding:

  - Amazon S3

  - Amazon SNS

  - Azure IoT Hub

  - FTP

  - MQTT

  - SFTP

- Adds a photoeye testing step to the Dynamic Test Tunnel Setup app.

- You can now switch between a light mode theme and dark mode theme.

- General fixes and enhancements to the workflow of Tunnel Setup and commissioning apps.