To update Kaung answer, if you look at the below you see the date 09-01-2010. This means I cannot license in new version after that date. So, any releases before 09-01-2010 I could run, but version 11 I could not.
Bill - Designated Support Engineer at Qlik If a post helps to resolve your issue, please mark the appropriate replies as CORRECT.
If are also talking about your applications, I would also be careful with macros, inputfields ( changed a lot from version 9 to version 10) and I also heard that some set analysis syntax from version 8 that was supported up to version 9 (or 10) will not be supported in version 11