We used to be able to download previous versions of Mac OS or OS X that we had previously installed, from the App Store / Purchased Apps listing. Now when I go into my listing of purchased apps under my account in the App Store, all the previous versions of Mac OS that used to show there are now gone. I have also found that the direct links in this and related support articles is broken: https://support.apple.com/en-au/HT208969 I have also checked the downloads area on my Apple Developer account, and no previous versions of Mac OS are listed there either. Please help! Kind regards, Chris