The second one is the most up to date. Launch it and whilst the icon appears in the dock right-click (control-click) on it and choose:
Options >> Keep in Dock
Yes, they both are two different versions of Lightroom.
Lightroom 5 is the older version
and the one that says Adobe Lightroom is version CC2015 which is the current version.
So, if you do not want both the versions, you can get rid of version 5.
thanks to you both
not sure how i got two versions.
Are they both CC versions?
Nope, Lightroom 5 is one version back than CC version.
When LR is updated from one major version to another (4.x to 5.x, 5.x to 6.x) the install is side-by-side, keeping both versions on your computer. After you are happy with the new version, you can uninstall the old version.
Minor version updates (5.1 to 5.2) will overwrite the old version with the new version.
Thank you. That answered my last remaining question.
Great Team! Maybe some day I will know enough to contribute.