Exercise 1: What Changed About Committing in Xcode 15 — Possible Solution
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TASK
Explain what changed about committing in Xcode 15, and say why a tutorial
written for Xcode 5 could mislead a beginner using a current version.

ANSWER
An Apple Developer Forums thread records that starting in Xcode 15 you must
explicitly stage changes to include them in a commit. Before, changes were
automatically staged when you made a commit. The commit window in a current
Xcode therefore has staging and append options that the older window did
not. A DTS engineer in the thread pointed to the Xcode 15 release notes and
noted that staging is standard Git behavior.

WHY THE 2014 TUTORIAL COULD MISLEAD
It describes a commit window with checkboxes for the files to commit, and it
assumes changes are handled at commit time. A beginner following it in a
current version would find a different window and might not realize that
unstaged changes will not be included.

CHECK
The change and its version come from the forum thread; the tutorial's date
(April 2014, Xcode 5) comes from the tutorial itself.