If you're in the middle of something, it isn't a problem. It doesn't update until you close the browser and open it again. It's also really unlikely to break

If you're in the middle of something, it isn't a problem. It doesn't update until you close the browser and open it again. It's also really unlikely to break anything you might be doing from one version to the next, unless you're doing really experimental cutting-edge things... And then you probably want the update anyhow.