You can see the changes to the content of a repository by analyzing the repository's commits, commit frequency, and content additions and deletions.

Visualizing commits in a repository

You can see all commits made to a repository in the past year (excluding merge commits) in the Commit graph.

Visualizing additions and deletions to content in a repository

The Code frequency graph displays the content additions and deletions for each week in a repository's history.

Viewing commit frequency in a repository

The Punch card graph shows the frequency of updates to a repository based on the day of week and time of day. The size of the black circle indicates commit frequency. Merge commits aren't included in this graph.