As is normal with Apple beta releases, Apple has followed up a developer-only release of iOS 10.3.2 with one for public beta program participants -- but as with the initial release it still lacks a 32-bit binary.
No significant release notes accompany the new beta software releases. So far, iOS 10.3.2 appears to only contain bug fixes and minor revisions to problems introduced with Monday's more major updates.
Registered iOS devices can acquire the beta through the regular upgrade process, or through iTunes. While the macOS Sierra 10.12.5 beta is not yet released for public testers, the tvOS 10.2.1 and watchOS 3.2.2 betas debuting on Tuesday will likely never be made available for non-developers.
As with Tuesday's beta releases, there are no binaries for the iPhone 5, iPhone 5c, and iPad 4. It is unclear if this is a permanent omission, or if there will be 32-bit binaries for the betas in the future.
Monday's releases included iOS 10.3, macOS Sierra 10.12.4, tvOS 10.2, and watchOS 3.2. Notable features for each include Find my Airpods on iOS 10.3, Night Shift on macOS Sierra 10.12.4, Theater Mode on watchOS 3.2, and better device management on tvOS 10.2.