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Upgrading LumenVox Products

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When you first purchase a license for a product, you get access to our current released version of software. After that, software upgrades are covered as part of an annual maintenance contract. You will have have a software maintenance up to date to use any new releases. If you upgrade the software without updating your maintenance contract and licenses then the software will not work. Please see our instructions for renewing software maintenance before you begin a software upgrade.You may contact LumenVox Sales for more information about maintenance contracts.

You may always download the latest software that you have access to according to your maintenance contract at and go to the appropriate operating system.

The exact instructions for upgrading your software depends on the operating system you are using.

Upgrading on Windows

Before upgrading to a newer version of the Speech Engine, License Server, or Speech Tuner, it is a good idea to uninstall the old versions using the Windows Add/Remove Programs control panel. Uninstall the License Server (and any optional components such as the Speech Tuner) and then uninstall the Engine.

Once the Engine has been uninstalled, restart your machine and run the install for the latest version of the Engine, restart the machine, and then install the additional components (License Server, etc.). You do not need to restart after installing the additional components.

Upgrading on Linux

The ideal way to upgrade the LumenVox Speech Engine, License Server, and MRCP Server on Linux is to use yum to handle the upgrades for you.

Assuming you have followed our instructions for setting up yum or setting up apt-get to automatically download the latest packages from our repositories, upgrading is simple. Upgrading will install the new software. Upgrades attempt to preserve your configuration settings, but if you are upgrading from an older version to a much newer version, this may not always be possible.

Please note that if you are upgrading from 8.0 or older, you will need to ensure you also get the new LumenVoxClient package when you upgrade. Also please see our new Linux directory structure to see where the files will get installed.

For yum, type:

yum update packagename
The valid package names are LumenVoxCore, LumenVoxLicenseServer, LumenVoxClient, LumenVoxSRE, and LumenVoxMediaServer.

If you are unable to use yum, you may manually download the RPMs and install them using the following command:

rpm -Uvhfilename
Replacefilenamewith the name of the RPM file you wish to install.


LumenVox does not support heterogenous environment.  All software component of the LumenVox stack (i.e. License Server, MediaServer, ASR, TTS etc.) must be running the same version.