We use VS2012. We have a TFS setup, browser based at ourUrl@visutalstudio.com. I think this is free and it was setup by one of our team member.
We recently have a disgruntle employee who just departed. We then found some code in a dll is no longer working. We are all sure it was working up till that person departed. We checked the History of TFS and didn't find any changes to the code but that is not possible. Before that was working and at sometime the correct code must have been checked in, built and deployed to the web server.
Can someone remove the checked in history log and version? is there a audit record of this some where in TFS that I can check?