License Management Software > Downward License Compatibility Using FlexNet Publisher
  
Downward License Compatibility Using FlexNet Publisher
FlexNet Publisher license servers have downward compatibility with PTC applications using FLEXlm license servers. For example, a Creo Illustrate 2.0 license can run Creo Parametric 1.0 software, because both releases of the software use the same PTC License Server.
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To run the current release of Creo Illustrate, you must install FlexNet Publisher version 10.8.x or later.