Luminar is a universal photo editing software developed by Skylum (formerly Macphun) available for Windows and macOS.
https://skylum.com/l/cobi
Note: Log into your skylum account, download Luminar 3 and install the program, it should be a free upgrade for 2018 users.
Download: Luminar_2018.dmg – Luminar_2018_Setup.exe
Download: Luminar3_Setup.exe – Luminar3InstallerMAC.zip