New project will not open on older version of Audacity

Have created a project using Audacity 3.6.4, and it works fine, until a friend attempted to open it on Audacity 2.3.3.

Version 3 projects cannot be opened in version 2.

Your options are:

  1. Export all your tracks to WAV or AIFF and have your friend reconstruct the project.

  2. Your friend updates to version 3.6.4 or later.

Thought it might be something along those lines.

Thanks, and all the best for the New Year.