Source: https://github.com/sparkle-project/Sparkle
Branch: 2.x
Commit: 2.7.0-beta.1

Instructions:
In ConfigCommon.xcconfig set deployment target and disable:
SPARKLE_EMBED_INSTALLER_LAUNCHER_XPC_SERVICE
SPARKLE_EMBED_DOWNLOADER_XPC_SERVICE
SPARKLE_BUILD_LEGACY_SUUPDATER
SPARKLE_BUILD_LEGACY_DSA_SUPPORT (and remove -DSPARKLE_BUILD_LEGACY_DSA_SUPPORT)
SPARKLE_BUILD_BZIP2_DELTA_SUPPORT
SPARKLE_BUILD_PACKAGE_SUPPORT (and remove -DSPARKLE_BUILD_PACKAGE_SUPPORT)
