Today, Apple released a new beta build of iOS 13.4.5, but it's actually calling it iOS 13.5 now. This is because it includes the new contact tracing API, and therefore requires a new SDK.
Windows 11 in Release Preview adds urgent notifications bypass and more
windows 11 insider preview
Windows 11 released to Dev Channel and ISO comes with File Explorer tabs
windows 11 promo
Macos 10.15.5 RSS
Today, Apple released its latest round of developer betas. Users can now test out iOS 13.4.5, iPadOS 13.4.5, macOS 10.15.5, and tvOS 13.4.5. Apple hasn't published release notes yet.