Apple has released the third betas of macOS Sequoia 15.5, iOS 18.5, visionOS 2.5, tvOS 18.5, and watchOS 11.5 to registered developers:

Apple Seeds Third Beta of macOS Sequoia 15.5
Apple Seeds Third Beta of iOS 18.5 to Developers
Apple Seeds Third Betas of visionOS 2.5, tvOS 18.5, and watchOS 11.5

Mac Rumors: Apple Seeds Third Beta of macOS Sequoia 15.5

Apple today seeded the third beta of an upcoming macOS Sequoia 15.5 update to developers for testing purposes, with the software coming a week after Apple released the second ‌macOS Sequoia‌ 15.5 beta.

Registered developers can opt-in to the ‌macOS Sequoia‌ beta through the Software Update section of the System Settings app. An Apple ID associated with an Apple Developer account is required to get the beta.

Apple Seeds Third Beta of macOS Sequoia 15.5

Mac Rumors: Apple Seeds Third Beta of iOS 18.5 to Developers

Apple today seeded the third betas of upcoming iOS 18.5 and iPadOS 18.5 updates to developers for testing purposes, with the software coming a week after Apple released the second betas.

iOS 18.5 and iPadOS 18.5 can be downloaded from the Settings app on a compatible device by going to General > Software Update.s

Apple Seeds Third Beta of iOS 18.5 to Developers

Mac Rumors: Apple Seeds Third Betas of visionOS 2.5, tvOS 18.5, and watchOS 11.5

Apple today provided developers with the third betas of upcoming visionOS 2.5, tvOS 18.5, and watchOS 11.5 updates for testing purposes. The software is available a week after Apple seeded the second betas.

The betas are available to registered developers, and can be downloaded from the Settings app on each device.

Apple Seeds Third Betas of visionOS 2.5, tvOS 18.5, and watchOS 11.5