DOC: Some changes (pandas-dev#17992)

1. Added whatsnew templates for 0.21.1 and 0.22.0
2. Update release.rst and whatsnew/v0.21.0.txt for the release tomorrow
3. Fixed some broken references in the 0.21.0 whatsnew

doc/source/release.rst

@@ -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
@@ -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 +
@@ -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 +
@@ -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
@@ -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
@@ -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 +
@@ -205,6 +214,7 @@ names contributed a patch for the first time.
 * XF +
 * Yi Liu +
 * Yosuke Nakabayashi +
+* aaron315 +
 * abarber4gh +
 * aernlund +
 * agustín méndez +
@@ -241,6 +251,7 @@ names contributed a patch for the first time.
 * louispotok +
 * majiang +
 * manikbhandari +
+* matthiashuschle +
 * mattip
 * maxwasserman +
 * mjlove12 +
@@ -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
 ----------------------
 

doc/source/whatsnew/v0.21.0.txt

@@ -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
@@ -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:
 
@@ -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.
 
@@ -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:
@@ -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`)

doc/source/whatsnew/v0.21.1.txt

@@ -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
+~~~~~~~~~
+
+Conversion
+^^^^^^^^^^
+
+-
+-
+-
+
+Indexing
+^^^^^^^^
+
+-
+-
+-
+
+I/O
+^^^
+
+Plotting
+^^^^^^^^
+
+-
+-
+-
+
+Groupby/Resample/Rolling
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+-
+-
+-
+
+Sparse
+^^^^^^
+
+-
+-
+-
+
+Reshaping
+^^^^^^^^^
+
+-
+-
+-
+
+Numeric
+^^^^^^^
+
+-
+-
+-
+
+Categorical
+^^^^^^^^^^^
+
+-
+-
+-
+
+Other
+^^^^^
+
+-
+-
+-