In addition to iOS 9.3.2, Apple on Monday released OS X 10.11.5, watchOS 2.2.1 and tvOS 9.2.1 to the public. You can find the updates in the Mac App Store, in the iOS Watch app, and by navigating to Settings > System > Software Updates > Update Software on your fourth generation Apple TV.
From what we saw in the various developer and public betas for the above updates, none of them are going to include any significant user-facing changes. They're mostly maintenance releases, featuring bug fixes and other improvements aimed at ironing issues noticed in previous software versions.
After seeding iOS 9.3.2 beta 2 to its registered developers this morning, Apple has also released new betas for its other forthcoming operating system updates: watchOS 2.2.1 and OS X 10.11.5 El Capitan. You can download watchOS 2.2.1 beta 2 (build 13V420) and OS X 10.11.5 beta 2 (build 15F24b) through Apple's Developer Center, which requires a paid account for full access, or apply them on the devices themselves through the Software Update mechanism on devices running a beta OS.
Apple today seeded the first beta of watch OS 2.2.1 to the members of its Apple Developer Program. The pre-release software can be installed on an Apple Watch through the My Watch → General → Software Update section within the companion Watch app running on an iPhone with the new iOS 9.3.2 beta, which was also seeded to developers this morning.
The software came with a build number of 13V413 and arrived approximately two weeks following the public release of the watchOS 2.2 firmware, a minor update for the Apple Watch that brought out an improved Maps app, support for multi-watch pairing and other tidbits.