No major update or upgrades the are all gradually but ….
For example CC14 is an seperate install from CC7 there for you could call it a upgrade.
You can open CC14(8.2) in CC14 (8.1) but you cannot open it in CC7 whatever version.
This was the same as previous versions such as CS6 or even CS3 for that matter.
You can open CS6.05 in CS6.0 etc.
Basically its all still the same. But you need to be very carefully in which version you start or save.
CC14 looks very much like CC7 so it very easy to make a misstake. Altough CC14 now has a blue UI.
Only recently AE offers an option to save in a previous version.
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