History and Branches

Read conflict markers, compare both changes against their common ancestor and verify the result before completing a merge.

Create branches, switch between lines of work and inspect the difference between fast-forward and merge commits.

Choose an undo command based on whether changes are uncommitted, committed locally or already shared with others.

Inspect commit relationships and HEAD, compare changes and understand how bisect narrows a regression to a commit.

Follow changes through the working tree, staging area and commit history, checking each step with status and diff.