Here’s a step by step upgrade guide for upgrading the Citrix License Server to version 11.10. This guide is written based on a Windows 2008 R2 server.
Go to the Citrix download page and logon with your Citrix ID and download the latest version of the installation files here.
Important: Before starting the upgrade it is always recommended that you have a backup of your license files and server. You can find the license files in the installation directory and then the “MyFiles” folder.
You can check which version of the License Server you have running now by starting the License Server webpage and going to the “Administration” button and logon. You now see the following screenshot (figure 1) which shows the version number.
Start the CTX_Licensing installer package on the License Server and select “Upgrade” (Figure 2).