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22 changes: 18 additions & 4 deletions doc/source/release.rst
Original file line number Diff line number Diff line change
Expand Up @@ -37,10 +37,10 @@ analysis / manipulation tool available in any language.
* Binary installers on PyPI: http://pypi.python.org/pypi/pandas
* Documentation: http://pandas.pydata.org

pandas 0.21.0RC1
----------------
pandas 0.21.0
-------------

**Release date:** October 13, 2017
**Release date:** October 27, 2017

This is a major release from 0.20.3 and includes a number of API changes,
deprecations, new features, enhancements, and performance improvements along
Expand All @@ -61,13 +61,17 @@ of all enhancements and bugs that have been fixed in 0.21.0
Thanks
~~~~~~

A total of 196 people contributed to this release. People with a "+" by their
A total of 206 people contributed to this release. People with a "+" by their
names contributed a patch for the first time.

Contributors
============

* 3553x +
* Aaron Barber
* Adam Gleave +
* Adam Smith +
* AdamShamlian +
* Adrian Liaw +
* Alan Velasco +
* Alan Yee +
Expand All @@ -84,6 +88,7 @@ names contributed a patch for the first time.
* Berkay +
* Bob Haffner +
* Bran Yang
* Brian Tu +
* Brock Mendel +
* Carol Willing +
* Carter Green +
Expand Down Expand Up @@ -125,6 +130,7 @@ names contributed a patch for the first time.
* Hussain Tamboli +
* Iva Miholic +
* Jan Novotný +
* Jan Rudolph
* Jean Helie +
* Jean-Baptiste Schiratti +
* Jean-Mathieu Deschenes
Expand All @@ -136,6 +142,8 @@ names contributed a patch for the first time.
* Joel Nothman
* John W. O'Brien
* Jon Crall +
* Jon Mease
* Jonathan J. Helmus +
* Joris Van den Bossche
* JosephWagner
* Juarez Bochi
Expand Down Expand Up @@ -172,6 +180,7 @@ names contributed a patch for the first time.
* Pankaj Pandey
* Patrick Luo
* Patrick O'Melveny
* Paul Reidy +
* Paula +
* Peter Quackenbush
* Peter Yanovich +
Expand Down Expand Up @@ -205,6 +214,7 @@ names contributed a patch for the first time.
* XF +
* Yi Liu +
* Yosuke Nakabayashi +
* aaron315 +
* abarber4gh +
* aernlund +
* agustín méndez +
Expand Down Expand Up @@ -241,6 +251,7 @@ names contributed a patch for the first time.
* louispotok +
* majiang +
* manikbhandari +
* matthiashuschle +
* mattip
* maxwasserman +
* mjlove12 +
Expand All @@ -254,13 +265,16 @@ names contributed a patch for the first time.
* ruiann +
* rvernica +
* s-weigand +
* scotthavard92 +
* skwbc +
* step4me +
* tobycheese +
* topper-123 +
* tsdlovell
* ysau +
* zzgao +


pandas 0.20.0 / 0.20.1
----------------------

Expand Down
33 changes: 17 additions & 16 deletions doc/source/whatsnew/v0.21.0.txt
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
.. _whatsnew_0210:

v0.21.0 RC1 (October 13, 2017)
------------------------------
v0.21.0 (October 27, 2017)
--------------------------

This is a major release from 0.20.3 and includes a number of API changes, deprecations, new features,
enhancements, and performance improvements along with a large number of bug fixes. We recommend that all
Expand Down Expand Up @@ -29,13 +29,14 @@ New features
~~~~~~~~~~~~

- Support for `PEP 519 -- Adding a file system path protocol
<https://www.python.org/dev/peps/pep-0519/>`_ on most readers and writers (:issue:`13823`)
- Added ``__fspath__`` method to :class:`~pandas.HDFStore`, :class:`~pandas.ExcelFile`,
and :class:`~pandas.ExcelWriter` to work properly with the file system path protocol (:issue:`13823`)
- Added ``skipna`` parameter to :func:`~pandas.api.types.infer_dtype` to
<https://www.python.org/dev/peps/pep-0519/>`_ on most readers (e.g.
:func:`read_csv`) and writers (e.g. :meth:`DataFrame.to_csv`) (:issue:`13823`).
- Added a ``__fspath__`` method to ``pd.HDFStore``, ``pd.ExcelFile``,
and ``pd.ExcelWriter`` to work properly with the file system path protocol (:issue:`13823`).
- Added a ``skipna`` parameter to :func:`~pandas.api.types.infer_dtype` to
support type inference in the presence of missing values (:issue:`17059`).
- :class:`~pandas.Resampler.nearest` is added to support nearest-neighbor upsampling (:issue:`17496`).
- :class:`~pandas.Index` has added support for a ``to_frame`` method (:issue:`15230`)
- :meth:`~pandas.core.resample.Resampler.nearest` is added to support nearest-neighbor upsampling (:issue:`17496`).
- :class:`~pandas.Index` has added support for a ``to_frame`` method (:issue:`15230`).

.. _whatsnew_0210.enhancements.infer_objects:

Expand Down Expand Up @@ -258,16 +259,16 @@ as in :meth:`DataFrame.rename`.
.. warning::

To assist with upgrading pandas, ``rename_categories`` treats ``Series`` as
list-like. Typically, they are considered to be dict-like, and in a future
version of pandas ``rename_categories`` will change to treat them as
dict-like.
list-like. Typically, Series are considered to be dict-like (e.g. in
``.rename``, ``.map``). In a future version of pandas ``rename_categories``
will change to treat them as dict-like. Follow the warning message's
recommendations for writing future-proof code.

.. ipython:: python
:okwarning:

c.rename_categories(pd.Series([0, 1], index=['a', 'c']))

Follow the warning message's recommendations.

See the :ref:`documentation <groupby.pipe>` for more.

Expand All @@ -293,15 +294,15 @@ Other Enhancements
- Integration with `Apache Parquet <https://parquet.apache.org/>`__, including a new top-level :func:`read_parquet` and :func:`DataFrame.to_parquet` method, see :ref:`here <io.parquet>`. (:issue:`15838`, :issue:`17438`)
- :func:`DataFrame.add_prefix` and :func:`DataFrame.add_suffix` now accept strings containing the '%' character. (:issue:`17151`)
- Read/write methods that infer compression (:func:`read_csv`, :func:`read_table`, :func:`read_pickle`, and :meth:`~DataFrame.to_pickle`) can now infer from path-like objects, such as ``pathlib.Path``. (:issue:`17206`)
- :func:`pd.read_sas()` now recognizes much more of the most frequently used date (datetime) formats in SAS7BDAT files. (:issue:`15871`)
- :func:`read_sas` now recognizes much more of the most frequently used date (datetime) formats in SAS7BDAT files. (:issue:`15871`)
- :func:`DataFrame.items` and :func:`Series.items` are now present in both Python 2 and 3 and is lazy in all cases. (:issue:`13918`, :issue:`17213`)
- :func:`Styler.where` has been implemented as a convenience for :func:`Styler.applymap`. (:issue:`17474`)
- :meth:`pandas.io.formats.style.Styler.where` has been implemented as a convenience for :meth:`pandas.io.formats.style.Styler.applymap`. (:issue:`17474`)
- :func:`MultiIndex.is_monotonic_decreasing` has been implemented. Previously returned ``False`` in all cases. (:issue:`16554`)
- :func:`read_excel` raises ``ImportError`` with a better message if ``xlrd`` is not installed. (:issue:`17613`)
- :func:`read_json` now accepts a ``chunksize`` parameter that can be used when ``lines=True``. If ``chunksize`` is passed, read_json now returns an iterator which reads in ``chunksize`` lines with each iteration. (:issue:`17048`)
- :meth:`DataFrame.assign` will preserve the original order of ``**kwargs`` for Python 3.6+ users instead of sorting the column names. (:issue:`14207`)
- Improved the import time of pandas by about 2.25x. (:issue:`16764`)
- :func:`read_json` and :func:`to_json` now accept a ``compression`` argument which allows them to transparently handle compressed files. (:issue:`17798`)
- :func:`read_json` and :func:`~DataFrame.to_json` now accept a ``compression`` argument which allows them to transparently handle compressed files. (:issue:`17798`)
- :func:`Series.reindex`, :func:`DataFrame.reindex`, :func:`Index.get_indexer` now support list-like argument for ``tolerance``. (:issue:`17367`)

.. _whatsnew_0210.api_breaking:
Expand Down Expand Up @@ -953,7 +954,7 @@ Performance Improvements

- Improved performance of instantiating :class:`SparseDataFrame` (:issue:`16773`)
- :attr:`Series.dt` no longer performs frequency inference, yielding a large speedup when accessing the attribute (:issue:`17210`)
- Improved performance of :meth:`Categorical.set_categories` by not materializing the values (:issue:`17508`)
- Improved performance of :meth:`~Series.cat.set_categories` by not materializing the values (:issue:`17508`)
- :attr:`Timestamp.microsecond` no longer re-computes on attribute access (:issue:`17331`)
- Improved performance of the :class:`CategoricalIndex` for data that is already categorical dtype (:issue:`17513`)
- Improved performance of :meth:`RangeIndex.min` and :meth:`RangeIndex.max` by using ``RangeIndex`` properties to perform the computations (:issue:`17607`)
Expand Down
124 changes: 124 additions & 0 deletions doc/source/whatsnew/v0.21.1.txt
Original file line number Diff line number Diff line change
@@ -0,0 +1,124 @@
.. _whatsnew_0211:

v0.21.1
-------

This is a minor release from 0.21.1 and includes a number of deprecations, new
features, enhancements, and performance improvements along with a large number
of bug fixes. We recommend that all users upgrade to this version.

.. _whatsnew_0211.enhancements:

New features
~~~~~~~~~~~~

-
-
-

.. _whatsnew_0211.enhancements.other:

Other Enhancements
^^^^^^^^^^^^^^^^^^

-
-
-

.. _whatsnew_0211.deprecations:

Deprecations
~~~~~~~~~~~~

-
-
-

.. _whatsnew_0211.performance:

Performance Improvements
~~~~~~~~~~~~~~~~~~~~~~~~

-
-
-

.. _whatsnew_0211.docs:

Documentation Changes
~~~~~~~~~~~~~~~~~~~~~

-
-
-

.. _whatsnew_0211.bug_fixes:

Bug Fixes
~~~~~~~~~
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can you add some blank lines in each of the bug fix sub-sectios (and some of the other sections as well). this helps prevent conflicts (if people don't all pick the same line).


Conversion
^^^^^^^^^^

-
-
-

Indexing
^^^^^^^^

-
-
-

I/O
^^^

Plotting
^^^^^^^^

-
-
-

Groupby/Resample/Rolling
^^^^^^^^^^^^^^^^^^^^^^^^

-
-
-

Sparse
^^^^^^

-
-
-

Reshaping
^^^^^^^^^

-
-
-

Numeric
^^^^^^^

-
-
-

Categorical
^^^^^^^^^^^

-
-
-

Other
^^^^^

-
-
-
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