Apple today released developer beta updates for iOS 13.4.5 and iPadOS 13.4.5 developer preview. Just a week ago on March 25, Apple released the stable versions of iOS and iPadOS 13.4.
The update for focuses on bug fixes and performance improvements.
The release notes for this update are generic. Apple states: "The beta version of iOS 13.4.5 contains bug fixes and improvements." The build number for this update is 17F5034c.
In addition to iOS 13.4.5, Apple also released developer beta versions of iPadOS 13.4.5, macOS Catalina 10.15.5 and tvOS 13.4.5.
Where did iOS 13.4.1 go? Apple may not release this update to Beta testers, but skip directly to the public official release.
A bug in Apple's iOS 13.3.1 and later prevented the VPN from encrypting traffic, and Apple may release an emergency fix for this issue as soon as this week.