From time to time, there might be relevant security updates for the Raspbian OS. Subscribe to updates from the Raspberry Pi foundation's blog to keep yourself informed of such alerts. Whenever there is an update for your OS, it could be updated from the Command Prompt as follows:
sudo apt-get update
sudo apt-get dist-upgrade
Sometimes, OS updates can break the stability of some interface drivers. Proceed with caution and check relevant forums for any reports of problems.