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Swift 5.2.1 as default and new features

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@vzsg vzsg released this 02 Apr 21:34
· 60 commits to master since this release
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  • The default Swift version will be 5.2.1, with the promise that it will be updated quickly as new toolchains drop.

    Living legacy projects can still pin old versions manually.

  • On top of the .swift-version file, the SWIFT_VERSION configuration variable can be used to specify the pinned Swift version.

    This helps consistency with other build parameters and may be easier to explain than the hidden file.

  • Clang is no longer installed for Swift 5.x.

    It was just wasted build time and cache space anyway.

  • The README has a practical example for SWIFT_BUILD_FLAGS.