Revision History allows you to see changes to your Initiatives, Ideas, Feedback and Personas as they are made. If you are an account admin, you can rollback to fix any mistakes that are made.
See Changes in Revision History
To access revision history for ideas or feedback, click on the ellipsis icon at the top right of the page and click on the Revision History icon to pop out the slideout.
To access revision history for initiatives, click into the initiatives to trigger the slide-out then click on the ellipsis icon at the top right of the page and click on the Revision History icon to trigger the slide-out.
Within the slideout you will see the changes made, grouped by date and user.
If you want to know more about the changes made, click on the group. This will provide a detailed stream of all changes made, alongside the ability to undo that change.