Team Rooms in Team Foundation Service
Team Foundation Service now includes a Team Room feature that lets users collaborate and chat amongst themselves to accomplish important tasks.
Keeping Track of Key Tasks in Team Rooms
Team Foundation Service's Team Rooms functionality also lets you keep track of important tasks, such as test cases, backlogs, and changesets.
Team Foundation Service Team Rooms: Comments in Changesets
Team Foundation Service also lets team members comment on blocks of code within changesets, shelvesets, and commits. The conversation then becomes a threaded discussion that's stored in the project's metadata rather than the source code itself.
Web Test Case Management in Visual Studio 2013
Developers can now fully manage their test plans without having to switch to the Test Professional client. Additionally, developers can create and modify test plans, suites, and share steps on the web.
Heads Up Display in Visual Studio 2013
Visual Studio 2013's new "heads up display" provides developers with several different insights into the code that's currently being worked on. There are several indicators makes the code that you're reading or editing much more meaningful.