Avid Sibelius | Ultimate 1-Year Software Updates & Support Plan Reinstatement Upgrade for Perpetual License (Retail) is for owners of a Perpetual license (retail) of Sibelius version 1-8 or Sibelius | Ultimate 2018 to 2022 that has an expired 1-Year Software Updates and Support Plan, and who want to regain access to software updates and the standard support plan for a period of one year.