Apple is now rolling out the third iteration of its iOS 13 Public Beta. Apple is also releasing the third public betas of macOS Catalina and tvOS 13 today.
The new update includes a bunch of improvements and tweaks to Photos and the Share Sheet. It also closed a security vulnerability that allowed anyone to access passwords stored in the Settings app without Face ID or Touch ID authentication.
Users running iOS 13 Beta can update to Public Beta 3 by going to Settings > General > Software Update.