[TheKarateKid]

I don't understand why Apple can't just make the past few releases of OS X available to anyone who needs it. It's a free OS now, and it has tons of hardware checks to prevent it from being run on non-Apple hardware.

I don't understand their need to remove/hide the OS upgrades. I have to repair a friend's older MBP next week, and now I need to jump through hoops to get a legitimate installer.

If you fall more than 1 version of OS X behind and they remove the previous upgrade, you're screwed from upgrading to the latest version.

WHY, Apple?

[Tsiklon]

They do; if you have it in your purchase history on your iCloud account and your machine supports the older version you can grab the installer.