SciPy 0.15.1 is a bug-fix release with no new features compared to 0.15.0.
#4413: BUG: Tests too strict, f2py doesn’t have to overwrite this array
#4417: BLD: avoid using NPY_API_VERSION to check not using deprecated…
#4418: Restore and deprecate scipy.linalg.calc_work
SciPy 0.16.0 Release Notes
SciPy 0.15.0 Release Notes