Will mavericks continue to be available on the mac app store when 10.10 is released? When mountain lion was released, lion disappeared from the mac app store - but you could still buy a redemption code from apple's website for lion and still get it that way if you needed to. The same thing happened to mountain lion when mavericks was released. Will the same thing happen to mavericks when 10.10 is released? But it is different this time. Mavericks is free. How can we "buy" something for $0? If apple are going to continue to allow mavericks to be downloaded after 10.10 is released, they should do it some other way, perhaps keep it on the mac app store along side 10.10 and not just let it suddenly disappear like it did for lion and mountain lion. That's my suggestion, but apple might have other ideas. I am worried that it won't be available at all.