See https://gist.github.com/pcdavid/bff1657d2a92ff828ed83d72b16d4edb for Sirius 4.0 N&N
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#481846 Refuse to open Sirius session or models from a more recent version
Starting with version 4.1, Sirius will now refuse to open sessions (
*.aird
files) or VSMs (*.odesign
) saved with more recent versions of Sirius than the current one. Previously, it would silently load them and attempt to make sense of the parts it understands, but this could lead to difficult to diagnose bugs and misbehaviors.