Get your taxes done using TurboTax

Just to be clear, can I purchase, the physical CD, and in the future, use the download if my computer hardware changes? Is there any additional cost to switching to the download at a later date? Can I continue to load past versions of the download without a charge, if I need to access the 2023 tax returns and have them backed up in the cloud or on a thumb drive? Thank you for your help.