created whatsnew 1.2

doc/source/whatsnew/v1.2.0.rst

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+.. _whatsnew_120:
+
+What's new in 1.2.0 (??)
+------------------------
+
+These are the changes in pandas 1.2.0. See :ref:`release` for a full changelog
+including other versions of pandas.
+
+{{ header }}
+
+.. ---------------------------------------------------------------------------
+
+Enhancements
+~~~~~~~~~~~~
+
+
+.. _whatsnew_110.enhancements.other:
+
+Other enhancements
+^^^^^^^^^^^^^^^^^^
+
+.. ---------------------------------------------------------------------------
+
+.. _whatsnew_110.notable_bug_fixes:
+
+Notable bug fixes
+~~~~~~~~~~~~~~~~~
+
+These are bug fixes that might have notable behavior changes.
+
+
+Increased minimum versions for dependencies
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Some minimum supported versions of dependencies were updated (:issue:`33718`, :issue:`29766`, :issue:`29723`, pytables >= 3.4.3).
+If installed, we now require:
+
++-----------------+-----------------+----------+---------+
+| Package         | Minimum Version | Required | Changed |
++=================+=================+==========+=========+
+| numpy           | 1.15.4          |    X     |    X    |
++-----------------+-----------------+----------+---------+
+| pytz            | 2015.4          |    X     |         |
++-----------------+-----------------+----------+---------+
+| python-dateutil | 2.7.3           |    X     |    X    |
++-----------------+-----------------+----------+---------+
+| bottleneck      | 1.2.1           |          |         |
++-----------------+-----------------+----------+---------+
+| numexpr         | 2.6.2           |          |         |
++-----------------+-----------------+----------+---------+
+| pytest (dev)    | 4.0.2           |          |         |
++-----------------+-----------------+----------+---------+
+
+For `optional libraries <https://dev.pandas.io/docs/install.html#dependencies>`_ the general recommendation is to use the latest version.
+The following table lists the lowest version per library that is currently being tested throughout the development of pandas.
+Optional libraries below the lowest tested version may still work, but are not considered supported.
+
++-----------------+-----------------+---------+
+| Package         | Minimum Version | Changed |
++=================+=================+=========+
+| beautifulsoup4  | 4.6.0           |         |
++-----------------+-----------------+---------+
+| fastparquet     | 0.3.2           |         |
++-----------------+-----------------+---------+
+| fsspec          | 0.7.4           |         |
++-----------------+-----------------+---------+
+| gcsfs           | 0.6.0           |    X    |
++-----------------+-----------------+---------+
+| lxml            | 3.8.0           |         |
++-----------------+-----------------+---------+
+| matplotlib      | 2.2.2           |         |
++-----------------+-----------------+---------+
+| numba           | 0.46.0          |         |
++-----------------+-----------------+---------+
+| openpyxl        | 2.5.7           |         |
++-----------------+-----------------+---------+
+| pyarrow         | 0.13.0          |         |
++-----------------+-----------------+---------+
+| pymysql         | 0.7.1           |         |
++-----------------+-----------------+---------+
+| pytables        | 3.4.3           |    X    |
++-----------------+-----------------+---------+
+| s3fs            | 0.4.0           |    X    |
++-----------------+-----------------+---------+
+| scipy           | 1.2.0           |    X    |
++-----------------+-----------------+---------+
+| sqlalchemy      | 1.1.4           |         |
++-----------------+-----------------+---------+
+| xarray          | 0.8.2           |         |
++-----------------+-----------------+---------+
+| xlrd            | 1.1.0           |         |
++-----------------+-----------------+---------+
+| xlsxwriter      | 0.9.8           |         |
++-----------------+-----------------+---------+
+| xlwt            | 1.2.0           |         |
++-----------------+-----------------+---------+
+| pandas-gbq      | 1.2.0           |    X    |
++-----------------+-----------------+---------+
+
+See :ref:`install.dependencies` and :ref:`install.optional_dependencies` for more.
+
+Development Changes
+^^^^^^^^^^^^^^^^^^^
+
+-
+
+.. _whatsnew_110.deprecations:
+
+Deprecations
+~~~~~~~~~~~~
+
+- 
+
+.. ---------------------------------------------------------------------------
+
+
+.. _whatsnew_110.performance:
+
+Performance improvements
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+- 
+
+.. ---------------------------------------------------------------------------
+
+.. _whatsnew_110.bug_fixes:
+
+Bug fixes
+~~~~~~~~~
+
+
+Categorical
+^^^^^^^^^^^
+- 
+
+Datetimelike
+^^^^^^^^^^^^
+- 
+
+Timedelta
+^^^^^^^^^
+- 
+
+Timezones
+^^^^^^^^^
+
+
+Numeric
+^^^^^^^
+- 
+
+Conversion
+^^^^^^^^^^
+- 
+Strings
+^^^^^^^
+- 
+
+Interval
+^^^^^^^^
+- 
+
+Indexing
+^^^^^^^^
+- 
+
+Missing
+^^^^^^^
+- 
+
+MultiIndex
+^^^^^^^^^^
+-
+
+I/O
+^^^
+-
+
+Plotting
+^^^^^^^^
+- 
+
+Groupby/resample/rolling
+^^^^^^^^^^^^^^^^^^^^^^^^
+-
+
+Reshaping
+^^^^^^^^^
+-
+
+Sparse
+^^^^^^
+-
+
+ExtensionArray
+^^^^^^^^^^^^^^
+-
+
+Other
+^^^^^
+-
+
+.. ---------------------------------------------------------------------------
+
+.. _whatsnew_120.contributors:
+
+Contributors
+~~~~~~~~~~~~
+