BUG: Offset.apply dont preserve time
PERF: Series.transform speedups (GH6496)
TST: skip tests in test_nanops.py on older scipy (related GH7427)
BUG: Bug in multi-index slicing with datetimelike ranges (strings and Timestamps), (GH7429)
Merge pull request #7421 from jreback/transform_speed

PERF: Series.transform speedups (GH6496)
Merge pull request #7375 from sinhrks/offsets

ENH/BUG: Offset.apply dont preserve time
Merge pull request #7430 from jreback/mi_slicers

BUG: Bug in multi-index slicing with datetimelike ranges (strings and Timestamps) (GH7429)
make nanops._maybe_null_out work with complex numbers ( issue #7353 )
make nanops work when ndim==1 and axis==0 ( issue #7354 )