What's new in 1.0.0 (??)

Warning

Starting with the 0.25.x series of releases, pandas only supports Python 3.5.3 and higher. See :ref:`install.dropping-27` for more details.

Warning

The minimum supported Python version will be bumped to 3.6 in a future release.

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These are the changes in pandas 1.0.0. See :ref:`release` for a full changelog including other versions of pandas.

Enhancements

Other enhancements

Backwards incompatible API changes

:class:`pandas.core.groupby.GroupBy.transform` now raises on invalid operation names (:issue:`27489`).

Other API changes

Deprecations

Removal of prior version deprecations/changes

Performance improvements

Performance improvement in indexing with a non-unique :class:`IntervalIndex` (:issue:`27489`)

Bug fixes

Categorical

Datetimelike

Bug in :meth:`Series.__setitem__` incorrectly casting np.timedelta64("NaT") to np.datetime64("NaT") when inserting into a :class:`Series` with datetime64 dtype (:issue:`27311`)

Timedelta

Timezones

Numeric

Conversion

Strings

Interval

Indexing

Missing

MultiIndex

I/O

Plotting

Groupby/resample/rolling

Reshaping

Sparse

Build Changes

ExtensionArray

Other

Contributors