Xcode 9.3 Beta 3 vs Xcode 26.4.1

Compare critical compatibility fields before upgrading.

Field	Xcode 9.3 Beta 3	Xcode 26.4.1	Diff
Release type	Beta 3	stable	different
Edition	-	Apple Silicon	different
Release date	2018-02-20	2026-04-16	different
Minimum macOS	10.13.2	26.2	different
Swift	4.1	6.3.1	different
iOS SDK	unknown	26.4.1	different
Build	9Q117m	17E202	different

Recommendation: keep production teams on stable releases unless you need to validate new SDK capabilities.