I have shared a spreadsheet, anyone having the link can see it. Since it is a spreadsheet I update daily, I want to facilitate the others recognizing the last changes. However, revision history is available only for collaborators which can edit the spreadsheet. Is there any workaround I can use to highlight the last changes when the others open it?
Protect the sheets of your spreadsheet, and add people that you want to see the change history as collaborators. See Protect a range or sheet from being edited for details.