Despite paying and downloading LR 6 onto my iMac which had LR 4, I still only have LR 4. Any suggestions as to what I'm doing wrong?
Simply downloading LR 6 from the Adobe website doesn't install the program on your computer. You have to run the .DMG file to install it.
Even after you install it with a Mac sometimes the newer program icon does not get added to the Dock or an icon on your desktop.
Open the Applications folder and look for 2 versions of LR. One will say LR 4 and the other either LR 6 or just LR (could have either or both Adobe and or Adobe Photoshop in front of the name Lightroom).