If you have a HP printer and it works fine with no issues, then forget about the update. They are only for recently released printers. By updating there could be a fault with the new update that may not support your particular printer and hence cause more problems than solve.
If you want to check if it applies to you click on the apple logo on the top left, then click software update, the window that comes up AFTER it has checked for updates should have a show more option where the window opens up and shows exactly what the updates include, feel free to click around and explore because there are only 2 things you can do and they are Accept and Cancel 🙂