what is creative cloud?If an updated version of a Cloud product is released will I be required to update my installed copy? Can I install and use more than one version of the same software?
adobe's creative cloud is a subscription-based software model.
you are not required to upgrade to the latest versions of the software you use, but you can upgrade without additional charge as new versions are released. you can install new versions and keep older version or replace older versions. and you can install older versions.
currently a cc subscription allows you to install cs6, cc, cc 2014 and cc 2015 versions. future versions are likely to be released, too.