Apple has released the fourth developer betas for iOS 9.3.2 and tvOS 9.2.1. As with prior betas, the sparse release notes and minor version numbers suggest that the betas are primarily focused on bug fixes and performance improvements and do not likely include any new user-facing features. The much smaller number of “Known Issues” in the release notes as compared to prior betas suggest that both versions may be nearing final release. The…