We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.
Rob
Forum Moderator

In some cases solver files will read into older versions of the code, so you may be lucky. That's solver, model and version dependent so can't be relied on.  Workbench will always fail to read a project created in a newer version. 

There's no older build of Student; the way it's licenced means we only offer current and two prior releases. 

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