Apple just concluded WWDC-25. And one of the announcements was about new versioning scheme. Versioning is very important.

Existing Apple versions

These are the versions that Apple was releasing.

Operating System Platform Full Version Number Last Release Date
macOS Mac 15.5.1 May 31, 2025
iOS iPhone 18.5.1 June 2, 2025
iPadOS iPad 18.5.1 June 2, 2025
watchOS Apple Watch 11.5 May 28, 2025
tvOS Apple TV 18.5 May 28, 2025
visionOS Apple Vision Pro 2.2 April 29, 2025

Now hence forth, all the new version numbers would be consistently numbered 26. Definitely this is a good move to keep version numbers consistent.

So, from now on. it would all be more or less

Operating System Platform Full Version Number
macOS Mac 26.xx.yy
iOS iPhone 26.pp.qq
iPadOS iPad
watchOS Apple Watch
tvOS Apple TV
visionOS Apple Vision Pro

Some one was doing this earlier

How ever, it’s worth to mention that Ubuntu has been doing this since ages. See Ubuntu Releases. There would be few others, but it is quite easy to show the WiKi page from Ubuntu here.