Compatibility test

i have the latest version on my PC. My mod uses Content Patcher to change the configuration string for objects in the game. i want to test it on different versions of the game and on different versions of Content Patcher.
i have steam installation
  • Stardew Valley v 1.6.8
  • SMAPI v 4.0.8
  • Content Patcher v 2.3.0

tell me your way to test the old versions.
 
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