Depending on the change, these are probably interesting for removal in 1.10. the non-integer one probably later.

• insert and delete changes (0-d input array and boolean indexing array)
• non-integer scalar deprecations. (see test_deprecations; PyArray_PyIntAsIntp)
• deprecation of arr.__index__() for non 0-d arrays. (see test_deprecations)
• 'full' and 'economic' modes of qr factorization
• nditer oa_ndim == 0 for no op_axes. This needs changing in numpy/core/src/multiarray/nditer_constr.c. (see also Make AdvancedNew iter more 0-d aware #3104)
• NPY_RELAXED_STRIDES_CHECKING was introduced as a compile time option in 1.8 (grep code for it).

Please extend the list (or comment) with other deprecations introduced in 1.8.