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Ansys Learning Forum › Forums › Installation and Licensing › Ansys Products › Ansys perpetual license transfering › Reply To: Ansys perpetual license transfering

October 16, 2024 at 5:58 pm
Lito Yap
Ansys Employee

If your TECS expired sometime ago, you can only use the version for which the license was valid. e.g. if your TECS expired on Dec 2023, then you can only run the 2023 releases. You will have to purchase/renew your TECS to be able to use the 2024 release and then renew/purchase TECS once it expires on 2025 to be able to use the 2025 release, and so on…  

Without an update/new TECS you will encounter the licensing error: -21 or error: -25 - License server system does not support the version of this feature
>>Fixing common licensing errors – Ansys OpticsÂ