EnOcean releases several updates per year of the SmartServer IoT software to add new functionality, enhance performance, and fix reported problems.  Due to high demand, the SmartServer IoT hardware is built in large production runs.  As a result, when you purchase a SmartServer IoT, it may not come with the latest version of the SmartServer software.  This page describes and provides download links for all the available SmartServer IoT software releases, with the current stable release followed by the most recent release at the top.  If you receive a new SmartServer IoT, you can compare the software version in your SmartServer IoT to the current stable release identified below.  To ensure you get the best performance and most stable operation, always update to the current stable release of the SmartServer software. See Determining SmartServer Software Version Compatibility before updating to verify compatibility for your update. See Warnings in the release notes in this section and in SmartServer Troubleshooting for additional use-case specific warnings.


Release Summary:

License

The SmartServer software is subject to the terms and conditions described in the license available at Embedded Software License Agreement.

Certain components of the SmartServer software are subject to the terms and conditions described in the open source and third-party licenses available at Open Source and Third-Party License Terms.

Example software for SmartServer, SmartConnect, and SmartSupervisor is subject to the terms and conditions described in the license available at github.com/izot/smartserver-iot/blob/master/LICENSE.md.

Current Stable Release 

Downloads for the current stable release (SmartServer 4.5) are available here:

Descriptions and direct links for the current and previous releases are available in the following sections. Prior releases do not support all functionality of the current release. See Frequently Asked Questions for version-specific warnings for prior releases.

SmartServer 4.5

Release Date: February 19, 2025

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SmartServer 4.4 Update 2

Release Date: October 7, 2024

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SmartServer 4.4

Release Date: July 8, 2024

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SmartServer 4.4 Beta

Release Date: May 31, 2024

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SmartServer 4.3 Update 2

Release Date: July 15, 2024

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SmartServer 4.3 Update 1

Release Date: May 19, 2024

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SmartServer 4.3

Release Date: May 19, 2024

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SmartServer 4.2 Update 1

Release Date: July 15, 2024

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SmartServer 4.2

Release Date: January 2, 2024

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  1. Open a terminal connection to the SmartServer IoT.

  2. Check if the lorawan service failed to start by entering the following command:

    sudo smartserverctl status lorawan

    If the lorawan service shows failed, then continue with the next step.

  3. Stop the lorawan service by entering the following command:

    sudo smartserverctl stop lorawan
  4. Start the lorawan service by entering the following command:

    sudo smartserverctl start lorawan
  5. Reboot the SmartServer by entering the following command:

    sudo reboot

    (AP-13651)

SmartServer IoT 4.1 Beta

Release Date: October 3, 2023

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SmartServer IoT 4.0 Update 1

Release Date: July 16, 2024

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SmartServer IoT 4.0

Release Date: May 23, 2023

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SmartServer IoT 3.6 Update 6

Release Date: July 15, 2024

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SmartServer IoT 3.6 Update 5

Release Date: May 30, 2023

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SmartServer IoT 3.6 Update 4

Release Date: March 15, 2023

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SmartServer IoT 3.6 Update 3

Release Date: February 13, 2023

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SmartServer IoT 3.6 Update 2

Release Date: January 11, 2023

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SmartServer IoT 3.6

Release Date: December 29, 2022

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SmartServer IoT 3.5 Update 2

Release Date: November 20, 2022

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SmartServer IoT 3.5 Update 1

Release Date: October 31, 2022

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SmartServer IoT 3.5

Release Date: September 30, 2022

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SmartServer IoT 3.4 Update 3

Release Date: July 26, 2024

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SmartServer IoT 3.4

Release Date: May 19, 2022

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/sbin/dehydrated -c
systemctl restart nginx

SmartServer IoT 3.3 Update 2

Release Date: August 8, 2024

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SmartServer IoT 3.3

Release Date: March 14, 2022

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/sbin/dehydrated -c
systemctl restart nginx

net.ipv4.ip_local_port_range = 32768 47700

SmartServer IoT 3.2 Update 5

Release Date: October 26, 2023

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  1. Software Downloader (see Updating with the SmartServer CMS)

  2. IzoT Net Export Utility (see Importing LON Devices from an LNS Network)

  3. Flash Drive Image (see Updating with the SmartServer Configuration Page and Updating with the SmartServer Console)

  4. SmartServer IoT XIF File (see (Optional) Creating a LON Device Interface (XIF) Definition)

  5. Example Applications, Drivers, and Web Pages (see SmartServer IoT Developer's Guide)

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SmartServer IoT 3.2 Update 4

Release Date: December 15, 2021

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  1. Software Downloader (see Updating with the SmartServer CMS)

  2. IzoT Net Export Utility (see Importing LON Devices from an LNS Network)

  3. Flash Drive Image (see Updating with the SmartServer Configuration Page and Updating with the SmartServer Console)

  4. SmartServer IoT XIF File (see (Optional) Creating a LON Device Interface (XIF) Definition)

  5. Example Applications, Drivers, and Web Pages (see SmartServer IoT Developer's Guide)

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SmartServer IoT 3.2 Update 3

Release Date: November 24, 2021

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SmartServer IoT 3.2 Update 2A

Release Date: September 19, 2023

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SmartServer IoT 3.2 Update 2

Release Date: August 26, 2021

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SmartServer IoT 3.2 Update 1

Release Date: May 26, 2021

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SmartServer IoT 3.2

Release Date: May 19, 2021

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SmartServer IoT 3.1 Update 3 Beta

Release Date: March 9, 2021 (beta release)

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SmartServer IoT 3.1

Release Date: December 23, 2020

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SmartServer IoT 3.0

Release Date: November 25, 2020

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SmartServer IoT 2.9

Release Date: August 28, 2020

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SmartServer IoT 2.8

Release Date: July 20, 2020

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SmartServer IoT 2.7 Update 1

Release Date: March 31, 2020

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SmartServer IoT 2.7

Release Date: December 1, 2019

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SmartServer IoT 2.6 Update 1

Release Date: November 1, 2019

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SmartServer IoT 2.6

Release Date: October 14, 2019

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SmartServer IoT 2.5 Update 2

Release Date: August 30, 2019

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SmartServer IoT 2.5 Update 1

Release Date: July 30, 2019

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SmartServer IoT 2.5

Release Date: July 12, 2019

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SmartServer IoT 2.4

Release Date: May 17, 2019

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