The API Diff download includes full help documentation, accessible via the program’s Help menu. You can also view the latest help documentation from the following link:
Report an Issue
Have you found a bug in API Diff or do you have a suggestion for a new feature? If so, then you can use the API Diff issue tracker to file an bug or feature report.
When reporting an issue, please try to provide as much information to help us reproduce your problem. For example, if you’re reporting a problem parsing a particular source file, try to include a minimal test file that demonstrates the problem.
If you have a query about API Diff that is not addressed by the above resources, then you can send us a message directly by going to the Contact Us page.