This week, Apple released updates for a lot of their products, including the Mac, iPhone & iPad, the Apple watch, and Apple TV. These are mainly bug fixes and security improvements, with no real new features. But any security improvements are pretty important these days, and I would highly recommend that you do the iOS 10.3.3  update in particular, as it resolves an important Wi-Fi security issue. Overall, if you own any of these products, you should update since you’re only going to get stability improvements with no downsides.