Why does Adobe lock projects so they can't be opened in older versions? Sometimes, well, often we need to go back and forth in versions at the prod house Im at. We are forced to go in and use Josh C.s downgrade feature (when it's working on his site) and other things like it.
Why not - if it's just an XML file in gzip(whatever that means...not a coder) - why not just make a feature in Premiere to allow moving between the last 2-3 versions??
ALSO WHY oh WHY did they keep the same Pr icon for versions 14 and 15?? Didn't thknk that one through did ya, Adobe?
hmm.. well, I certainly can't speak for Adobe and what they are doing in the background, I can speak from a programmer's standpoint.
When an app has to load in "configuration" files, like a project or whatever, it has to know where to put things, how to put things, timing, spacing, placement, colors, fonts, text etc etc etc.. If Adobe had to maintain all of these things over several iterations of the software, I'd imagine they'd have such bloated code it would be crazy. Let alone the bug fixing they'd have to be all over forever. Having something backwards compatible is HARD, which is why it's usually touted as an amazing thing, because it is. Especially for such an intricate piece of software.
More or less I would say that it's done this way because it's too easy to introduce bugs with such code and it's unneeded as it's possible to go back a few versions anyways if need be. Clean up the code, make it simple and reduce risk of bugs. There you go 🙂
As for the icon.. who knows. I'm sure they thought it through but are maybe kicking themselves for not hiring you to set them straight 😉