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Xcode 15.0 RC 1 vs Xcode 26.4 Beta 3

Compare critical compatibility fields before upgrading.

FieldXcode 15.0 RC 1Xcode 26.4 Beta 3Diff
Release typeRC 1Beta 3different
Edition-Apple Silicondifferent
Release date2023-09-122026-03-09different
Minimum macOS13.526.2different
Swift5.96.3different
iOS SDK17.026.4different
Build15A240d17E5179gdifferent
Recommendation: keep production teams on stable releases unless you need to validate new SDK capabilities.