The document concerns the HR application, specifically the User and Schema

The history log is generated after changes are made in the Access Rights tab for each application, in the following areas:

-Roles
-Fields access
-Views
-Forms (create, view, edit, delete)
-Access exceptions
-Access levels

Changes are also recorded when common fields for the User/Schema forms are modified in the Preferences tab:

After saving a User or Schema document, entries containing previous versions of the document will be displayed in the History tab. By selecting any entry, the user is taken to a view of the corresponding historical version.

The Change History document contains a copy of the elements mentioned above and a Change History button located in the top-right corner.

Selecting the Change History option opens a window that allows you to review the changes made during saving.