Diff implementation to tickets etc

At the same time I'm using Redmine and GLPI to manage IT projects. One of the problem with GLPI which is nicely solved in Redmine is showing the difference after updating the ticket or whatever in GLPI is to change. Redmine tells me exactly the 'diff' between old and new version of the ticket, change etc. In GLPI the only thing I know is that something has changed, but had no idea what was it. So it would be nice to see a diff (link to page with diff?), which could show the exact last change (what was changed, who made it and when - just like wiki pages).

I know there is History, but it does not show sufficient information.