It would be useful for SugarCRM developers and eventually administrators to be able to access past SugarCRM developer and administration guides.
We are working with many clients that are hosted on their own environment, and even if we instruct them to upgrade to latest version, this is not always possible. Also we often get some new clients that are on outdated versions of SugarCRM, and we need to check for example Platform Requirements, or maybe reference to some feature that is changed in meantime.
It doesn't matter if this documentation would be in some download format(archived) or kept online.
Finally this documentation would be very useful for companies that maybe just become sugarcrm partner, and they do not know what was best practices for some past releases, or how some classes/functions was used in previous releases.