We've completed impediments management implementation. The main goal is to make blocking stories, tasks and bugs explicitly visible. They are marked with impediments icon and you may click on the icon to see all impediments. Thus you clearly see what story is blocking and why. The functionality includes:

• Add/Edit/Delete impediments
• Impediments list (sorting, filtering, change impediment state)
• Bind impediments to user stories, tasks and bugs
• See blocked user stories, tasks and bugs and see related impediments in many places (for example, user story list, user story view, task board, todo)
• Private/Public impediments (private impediment available for impediment owner only)