Q: The Recommended pages for updating software for my mac are no longer maintained by Apple. Any thoughts?

When using the About this Mac selection from the Finder menu below the Apple icon,

in the little window of that name, when you click the information immediately below

the OS X, that should say Version 10.9.5, then click the same place again, and Build

number (may vary) should appear; click a third time and your product Serial number

appears. You can use this information to help correctly identify the OS X & build series.

Also, the total of memory RAM installed, appears; so does the processor specification.

•How to Know Which version of Mac OS X my computer is running:

https://it.uoregon.edu/node/3320

•How to identify iMac models - Apple Support

•Identify your Mac - Lookup by serial number:

https://www.powerbookmedic.com/identify-mac-serial.php

There are other places to look in the running system, to tell if you may have a second

system, a different partition, or other questionable action going on. There is a way to

use the command line in Terminal to see what is going on, and other less complex ways

for a lay-person who is not experienced, to look at some information reports that can be

generated. One of them is the etrecheck report. It will show what is in the computer. But

not an entire complement of information that a inquiry via Terminal utility can.

•About Etrecheck (story + how it can be used + download  product)

http://www.etresoft.com/etrecheck_story

Not sure exactly what the issue is you are facing, the computer may or may not have

a problem; what made you try to update software? If it has Mavericks, what does the

App Store or Software Update page show you? Do not upgrade to try & solve an issue.

Hopefully some information gained will be of help.

If the computer says it has Mavericks 10.9.5, it

probably does. However, what you need or hope

it to accomplish may require a different direction.

It may have older applications, or other problem.

Good luck & happy computing!