Today was a massive day for Apple in terms of software releases. In total Apple released 3 brand new betas, iOS 13.5.5, iPadOS 13.5.5, and macOS Catalina 10.15.6 beta 1. None of the betas included any major visible changes for users.
Apple also released 5 total updates to the public, most headline-worthy being iOS and iPadOS 13.5.1. These updates officially patched the exploit that made unc0ver 5.0.0 possible, with Apple even mentioning it directly in its security notes. Apple also seeded a supplemental update to macOS Catalina 10.15.5 with simple security improvements.