OS X El Capitan and older not available on App Store?
4309
How can I download an older version of OS X/macOS?
71865
How to download MacTeX 2011 now that MacTex 2012 is available
86396
Have iOS apps. Can I use them on my Mac Mini?
63888
Installing OS X not from App Store
105649
How can I download an older version of Xcode?
128793
Can I have multiple Xcode versions installed?
68614
Is it possible to install an old version of Mac OS on a new Mac?
52382
Where can I get a copy of Mavericks after Yosimite has been released?
131874
Will Apple accept apps built only with Xcode 5
104705
Mac App Store: Downloads just don't start (Mojave)
72320
How to install apps which require a newer version of iOS on a 1st gen. iPad?
60029
Which macs are compatible with OS X 10.11 El Capitan?
65867
The Safari app has disappeared from my iPhone?
22617
Downgrading from Safari 12 (beta) to Safari 11
98543
How can I download Mac OS X El Capitan without app store?
93727
Why can't I find OS X Yosemite in the Mac App store?
96883
How do I install Xcode on Ubuntu?