Xcode 7.0.1 Release was released on 28 Sep 2015 and requires macOS 10.10.3+.
It can be downloaded from https://download.developer.apple.com/Developer_Tools/Xcode_7.0.1/Xcode_7.0.1.dmg.
Release notes are located at https://developer.apple.com/library/content/releasenotes/DeveloperTools/RN-Xcode/Chapters/Introduction.html#//apple_ref/doc/uid/TP40001051-CH1-SW324.
The SDKs it contains are:
- iOS 13A340
- macOS 15A278
- watchOS 13S343
The compilers it contains are:
- clang 7.0.0 (Build 700.0.72)
- swift 2.0 (Build 700.0.59)
- LLVM-GCC 3.7.0 (Build )