Having released new builds of iOS 10.3.2 and macOS 10.12.5 Sierra to its developer beta program earlier this week, Apple has now rolled out both of those versions to public beta users too. The incremental rise in the version numbers from previous releases shows that these are minor updates, and unsurprisingly, they bring no new user-facing features.
The iOS update does include two fixes, resolving issues with SiriKit car commands, as well as for third-party VPN apps. This latest build also supports 32-bit devices - including the iPhone 5, iPhone 5c, and fourth-generation iPad - whereas the earlier betas did not.
Unfortunately, there are no release notes for macOS 10.12.5 yet, but it seems likely to focus solely on bug fixes and other minor improvements.
Apple also released new developer betas of watchOS 3.2.2 and tvOS 10.2.1 this week.