CC Updates for Lightroom & Ps - 2 versions?

Question

Here is what's presented for updates on my Updates Available list in the Creative Cloud desktop app (on Windows10 PC). I have the complete CC Abo, but I never noticed this was double till this year.

I checked the "About" window in the currently installed versions of the two programs and they show me the following release # info:

and for Lightroom

I also see that Photoshop is installed on my PC in two versions - CC 2015 and CC 2017.

The question
1) which of the offered updates should I be installing and
2) can I delete the Photoshop CC2015 program without making problems?

kglad · Accepted Answer

they're the same updates.don't delete any programs. properly uninstall them if you have no use for previous versions.

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