This is a 0.3.0 pre-release to provide up to date macOS builds, both legacy (Qt 5.6) and new (Qt 5.10).
Only install the legacy build if you are running macOS 10.10 or earlier.
EDIT: If you are experiencing mouse cursor movement issues, please redownload, reinstall, and reboot.
974284804d75a63cd10f19eabfe44b42feef8a555420a05273a3f99565008dd9 ckb-next_v0.3.0-pre-2.dmg
24b2731a88db56471e317e5f0b87ab2d5804e5cb46300a9d76fc01ad9d110b99 ckb-next_v0.3.0-pre-legacy-2.dmg