No... Adobe offers the current and ONE older version
When you have a subscription you MAY be able to find an older version at this link, but even if you do find what you need, you still must have a subscription for the program to run
Direct Download Links https://prodesigntools.com/tag/ddl MAY help -you MUST do what it says in Note: Very Important Instructions -https://prodesigntools.com/adobe-cc-2015-direct-download-links.html#download-instructions -the prodesign links go directly to Adobe's file server, so this process will --only work until Adobe completely removes the old version(s) from the server . IF/When you do have a download, be sure to copy it to AT LEAST one external device -since Adobe does sometimes remove old versions from the server -a usb flash drive or external hard drive, or write to a DVD
Yes that is right in addition to the following points.
The downloads can anytime be discontinued by Adobe. No guarantee that the download links will work always, so make a copy of the installer if you are able to get it and want to use the same version in the future
These older versions are no longer officially supported by Adobe so don't expect any bug fixes or support
In most cases you will get the installer only for the major version but the minor release updates would not be available.