Hello,
Softaculous is maintained by a 3rd party, not by x10, so we cannot decide when it updates to newer versions of the scripts. If you wish to keep your scripts up-to-date, I recommend that you do NOT use the auto-installers and simply install the script manually. It doesn't take that much extra work, and it gives you more control over various script options (for example, being able to use the same database for multiple scripts by setting a "database prefix")