MacRumors published a story that Apple has released the fourth betas of iOS and iPadOS 13.5 to registered developers

Apple Seeds Fourth Betas of iOS and iPadOS 13.5 to Developers With Exposure Notification API, Face ID Mask Updates and More

Apple today seeded the fourth betas of upcoming iOS and iPadOS 13.5 updates to developers, one week after seeding the third betas and over a month after releasing iOS and iPadOS 13.4 with iCloud Folder Sharing, iPad trackpad support, and more.

  Apple Seeds Fourth Betas of iOS and iPadOS 13.5 to Developers With Exposure Notification API, Face ID Mask Updates and More