iOS: Apple released iOS 10.3 today, which isn't a particularly interesting update, but it does have a few minor improvements, including a new file system, that are worth mentioning.
The new file system is called Apple File System. It supports native encryption, though that will be more interesting to see implemented on macOS. It's also optimised for solid-state storage, so hopefully it will be a little smoother to use overall.
Aside from that, Apple's also introducing a new Find My AirPods option, in-app review prompts that let you review an app without going to the App Store, and a nice little tweak to the Settings page that makes it easier to access Apple ID info. Mail also gets a new thread view option to make scrolling through a ton of messages a little less cumbersome, and the Podcast app gets a widget. Finally, developers get two nice little new features: The ability to reply to App Store reviews, and the ability to update an app's icon without pushing out an App Store update.
You can snag the update now by heading to Settings > General > Software Update. As always, make sure you have a current backup before you update. We haven't heard of any problems with the switch to the new file system, but it's always good to backup everything up before any update.