TFS 2013 update 4 released.
Many new features to web access work item tracking, such as trend charts, area path search, better embedded url support, performance improvements & full screen support.
New licensing model – Stakeholder license – for using work item tracking without charge.
In addition – the ability to easily include bugs in the backlog.
Testing hub improved, and one of the major improvements is the charting wizard for test cases and test cases results.