Adobe provides official installers for older versions, but you still need a licensed copy of Photoshop or Lightroom:
By following this guide, you can safely resurrect your old workstation and process raw files with professional efficiency—without spending a dime on recurring subscriptions. camera raw 12.2.1 free download
If you are using a modern CC subscription but want to roll back to 12.2.1 for performance reasons: Adobe provides official installers for older versions, but
It cannot natively read raw files from cameras released after mid-2020. camera raw 12.2.1 free download