Some updates require a System Administrator to install the update. Microsoft sends out plenty of email announcements when updates are available, but in case you missed them, here's how to check if your CRM Organization is up to date.
Step 1: Navigate to Settings==>Administration
Step 2: Scroll Down!
Step 3: Click on Install Product Updates:
If there are no Product updates, you will see this message:
If there are product updates, click the Install Update button. Note: Your CRM may be unavailable for a few minutes during the update.