Track Changes for Zoho Writer was introduced in the recent past to facilitate the document review process. It helped the Owner of the document to view the changes as they are made, and selectively accept or reject the changes. Now, Zoho Writer has extended the access privileges for Track Changes to the Co-owners of the document as well.
If you are assigned as the Co-owner of a document, you can switch on Track Changes under the Review tab and keep a track of the changes made by the collaborators. After the edits have been made, you can switch to the Review Mode and accept / reject the changes as required.

We hope this enhancement will help you to make the review process easier and efficient. If you have any questions or feedback, please share them as comments below.