The changes tab contains a list of changes for each repository associated with the build's Configuration.

The changes associated with the build are dependent on when the build was run and how it was started. For manually started builds, you will see the latest change set or all change sets since the last successful build. For triggered builds, it can be the triggering change set or any change sets detected while the build was queued and in its quiet period.

For each change set you will be able to see a list of the files that were modified. Clicking the Repository name will list the files and the action on that file (Added, Modified, Deleted).

The files listed here will be limited to 20. To see all the files changed, click the Click here to see more files link at the bottom of the file list. You can also get to the same page by clicking the the Changeset Id of the change set or the file count in the Changes column.