MacRumors published a story that Apple has released the GM Version of iOS and iPadOS 13.5 to registered developers.

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

Apple today seeded golden master versions of upcoming iOS and iPadOS 13.5 updates to developers, one week after seeding the fourth betas and over a month after releasing iOS and iPadOS 13.4 with iCloud Folder Sharing, iPad trackpad support, and more. GM versions denote the final versions of the software that will be released to the public.

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