Lesson 25 / 28

blame, show & Tags

Find who changed a line with git blame, inspect a commit with git show and mark releases with tags.

git blame

Shows which commit and author last touched every line of a file — great for tracking down the origin of a bug.

git blame utils.py

Output:

a1b2c3d (Ada Lovelace 2026-08-12) def calculate_total():

Inspect exactly what one commit changed.

git show a1b2c3d

An annotated tag marks a specific commit as a release point, with its own message and metadata.

git tag -a v1.0.0 -m "First stable release"
git push origin v1.0.0