To update Zend Server:
Go to Administration | Updates.
If your system is out-of-date, click on the link inside the info. message.
You will be directed to the Zend Server updates page.
Click on one of the links in the page to begin the download process.
Download the update package.
Install the update package on top of the previous installation (this is possible with a previous update package).
Check that the new files are up-to-date.
The info. message will change to "Your system is up-to-date. Click here for more information on Zend Server updates"
For future reference, check this page for updates periodically so see if the message changes to an out-of-date message.
