Fixed

• Carthage now builds with Xcode 9.
• Homebrew installations will no longer mistakenly use previously installed versions of CarthageKit.framework (#2059). Thanks @ikesyo!
• Fetching of local repositories with relative paths (#2125). Thanks @ikesyo!

Added

• Support for .bz2 archives (#2092). Thanks @lswith!
• Support for .tgz archives (#2109). Thanks @ikesyo!
• Support for file:/// URLs with binary dependencies (#2140, #2142). Thanks @ikesyo, @phimage!

Improved

• Carthage’s derived data folder is now split by Xcode version (#2102). Thanks @ikesyo!
• The Swift version string used to compare versions now includes the major version of the compiler (#2052). Thanks @ikesyo!
• Carthage’s Makefile is now more robust (#2054, #2098, #2108). Thanks @waffleboot, @zhongwuzw, @jdhealy!

Thank you to @ikesyo and @jdhealy for improvements to the codebase! Thanks to @mdiep, @BobElDevil, @jdhealy, @andersio, @norio-nomura, and @ikesyo for reviewing pull requests!