It is always a good idea to update your computer. Unless there is a specified issue to keep you from doing so, updating your computer can help resolve performance issues, increase security, and prevent future issues from happening.
Please see the following links on how to update your computer software.
Windows
https://support.microsoft.com/en-us/help/4027667/windows-10-update
Mac
https://support.apple.com/en-us/HT201541