How to obtain a license for Quartus II 7.2 subscription edition

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Unfortunately, 99% of my project was implemented into schematics. Is it possible to convert them from 7.2 to recent version?

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I don't know. I don't use schematics for HDL design. They're a little too limited.

My recommendation would be to install 11.1sp1 or 11.1sp2 and try reading the design.

Cheers,

Dave