It's a "stable version" because, being not updated periodically, it doesn't risk being randomly broken by someone's mistake. It also is guaranteed to be broken in lots of (mostly known) ways, which is why when someone makes a support thread, the first advice is always "try updating to the latest version". Unless you're volunteering to backport fixes to 4.0.2, there's really only so much that can be done to support it -- if something was a known issue in 4.0.2 and has been fixed since, there's not really any way to get the fix in 4.0.2 without a backport.
Yes we should probably have a new stable release months ago, but complain to delroth about that one
Yes we should probably have a new stable release months ago, but complain to delroth about that one