Step 1. Open Parallels Client from the shortcut on your desktop:
Step 2. Click on 'Tools' from the menu options at the top of the Parallels Client window:
Step 3. From the drop-down menu in 'Tools', click on 'Options..."
Step 4. When the pop up opens, click on the 'Check for updates now...' button. You may wish to also tick the 'Check for updates on startup' checkbox so that every morning when you open Parallels, it will check if an update has been released.
Step 5. The update checker will open and then run. This will advise the user if there is an update for you to download and enable you to apply it.
If you would like any assistance with updating your copy of Parallels Client, please get in touch with firstname.lastname@example.org.