I purchased InDesign CS 5.5, the Middle Eastern version, and was thinking of upgrading to the latest one. Do I have to subscribe to the cloud service to be able to do that? I ask because I don't need any other Adobe product, not a single one.
And I heard now that there are not any Middles Eastern/non Middle Eastern versions now, they are all one and that all the functionality of the previously separate Middle Eastern versions can be found on the new InDesign versions?
You can subscribe to just InDesign CC, or the whole Cloud. There are separate ME versions, still, but if you are a Cloud subscriber then the version you download is dependent upon the language you select in the Creative Cloud app manager preferences. You get access to both versions as a subscriber.
I suspect you could buy a desktop retail license of InDesign CS6 ME if you wanted to do so.