Apple seeded a new round of Developer Beta builds today, which includes iOS 10.3, watchOS 3.2, and tvOS 10.2. Aside from the operating systems, new betas were also introduced for the Classroom 2.0 app as well as Xcode 8.3.
It's been about a week and a half since the last builds were released, and not a lot has changed. The fixes for this release in iOS 10.3 are the same that they were last week, and they include fixes with Find My iPhone, iCloud Analytics, iCloud Backup, LAN Asset Cache, Lightning Video Adapters, managed and shared devices, and Xcode Simulator.
There are also some notes and known issues, such as SOS only being supported in India, SiriKit car commands not working as expected, and more.
watchOS 3.2 beta 5 includes some known issues with Xcode, but that's about it. The update itself will include support for SiriKit, as well as a new Theater Mode, which keeps your Watch from lighting up when you raise your wrist.
Finally, the new tvOS 10.2 beta still has some notes and known issues, which have to do with Accelerated Scrolling, Mobile Device Management, the file system (updated to Apple File System), and Top Shelf App Extension.
The firm also released a new macOS 10.12.4 Sierra beta yesterday, although the release notes don't say anything about what's new, and there were also new macOS Server 5.3 and Apple Configurator 2.4 betas.