Exercise 3: Checking Your Xcode Version — Possible Solution
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TASK
Run xcodebuild -version if you have a Mac, compare your version with the
latest named in the chapter, say which steps in later chapters you would
double-check if yours were older, and what claims here you could not confirm.

STEPS
1. Open Terminal on a Mac with Xcode installed.
2. Run:  xcodebuild -version
   It prints the Xcode version and a build number. The values depend on your
   installation, so write yours down.
3. Compare with Xcode 27, released 14 September 2026, the latest version the
   chapter names.

IF YOURS IS OLDER, DOUBLE-CHECK
- Anything that mentions a version number: for example the chapter says
  Swift Package Manager integration came in Xcode 11 and Xcode Cloud in
  Xcode 13, so those are safe for recent versions.
- Later chapters' menu paths and window names.
- Any feature the chapter attributes to Xcode 27 (coding agents, Device Hub),
  which an older version won't have.

CLAIMS I COULD NOT CONFIRM
- Which Xcode tools can be used outside Xcode.
- When Interface Builder became part of Xcode (Chapter 3 later establishes Xcode 4).
- Android Studio's cost and supported operating systems (the chapter's
  sources did not cover them).

WHY THIS WORKS AS AN ANSWER
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It gives the exact command, ties the check to specific claims in the chapter,
and lists the unverified items instead of filling them in.