> OS versions are only available in the developer download area for paid Apple > developer program members. Free Apple developer program members can't access > OS installers there and should use the support article above (to download > 10.10 or later) or the Purchased tab of the Mac App Store (to download > 10.7-10.9). Only older OS installers that you previously downloaded from the > Mac App Store will be in the Purchased tab.
Please excuse the year-old followup, but does anyone happen to know if this was still a thing? I recently subscribed to the Apple Developer Program for the first time, and while it certainly isn't why I enrolled, I was excited to get an "Apple-blessed" copy of 10.9 based on this thread. Unfortunately, I'm only seeing update packages (to go from, for instance, 10.9.1 to 10.9.5), which are already publicly available on https://support.apple.com/downloads/more. I don't seem to see any full OS downloads.