There are some deprecated as of next_release which should be set to 2015_05
The top level deprecated as of 2015_05 page should be moved manually to the group MITKDeprecatedAPI [1]
Check why the extension point documentation does not work. [2]
[1] http://docs.mitk.org/2015.05/group__MITKDeprecatedAPI.html
[2] http://docs.mitk.org/2015.05/mitkExtPointsIndex.html