# Using \`Span\` on pre-26 Apple OS versions

**URL:** <https://forums.swift.org/t/using-span-on-pre-26-apple-os-versions/80513>\
**Category:** Using Swift\
**Created:** [June 17, 2025, 11:59am UTC](https://forums.swift.org/t/using-span-on-pre-26-apple-os-versions/80513 "2025-06-17T11:59:00Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![glessard](https://sea2.discourse-cdn.com/swift/user_avatar/forums.swift.org/glessard/32/409_2.png) [@glessard](https://forums.swift.org/u/glessard)\
**Post date:** [June 17, 2025, 6:33pm UTC](https://forums.swift.org/t/using-span-on-pre-26-apple-os-versions/80513/4 "2025-06-17T18:33:44Z")

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`Array.span`, `String.utf8.span` and `Substring.utf8.span` aren't back-deployable due to the bridging changes they depend on.

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_[View the full topic](https://forums.swift.org/t/using-span-on-pre-26-apple-os-versions/80513)._