===========================
Release date: 2021-07-01


* Fix a crash that happened when analysing empty function with docstring
in the ``similarity`` checker.

Closes 4648

* The ``similarity`` checker no longer add three trailing whitespaces for
empty lines in its report.

===========================
Release date: 2021-07-01

* Fix a crash that happened when analysing code using ``type(self)`` to access
a class attribute in the ``unused-private-member`` checker.

Closes 4638

* Fix a false positive for ``unused-private-member`` when accessing a private variable
with ``self``

Closes 4644

* Fix false-positive of ``unnecessary-dict-index-lookup`` and ``consider-using-dict-items``
for reassigned dict index lookups

Closes 4630

===========================
Release date: 2021-06-30

* Upgrade astroid to 2.6.2

Closes 4631
Closes 4633

===========================
Release date: 2021-06-29

* Python 3.10 is now supported.

* Add type annotations to pyreverse dot files

Closes 1548

* Fix missing support for detecting deprecated aliases to existing
functions/methods.

Closes 4618

* astroid has been upgraded to 2.6.1

* Added various deprecated functions/methods for python 3.10, 3.7, 3.6 and 3.3

* Fix false positive ``useless-type-doc`` on ignored argument using ``pylint.extensions.docparams``
when a function was typed using pep484 but not inside the docstring.

Closes 4117
Closes 4593

* ``setuptools_scm`` has been removed and replaced by ``tbump`` in order to not
have hidden runtime dependencies to setuptools

* Fix a crash when a test function is decorated with ``pytest.fixture`` and astroid can't
infer the name of the decorator when using ``open`` without ``with``.

Closes 4612

* Added ``deprecated-decorator``: Emitted when deprecated decorator is used.

Closes 4429

* Added ``ignore-paths`` behaviour. Defined regex patterns are matched against full file path.

Close 2541

* Fix false negative for ``consider-using-with`` if calls like ``open()`` were used outside of assignment expressions.

* The warning for ``arguments-differ`` now signals explicitly the difference it detected
by naming the argument or arguments that changed and the type of change that occurred.

* Suppress ``consider-using-with`` inside context managers.

Closes 4430

* Added ``--fail-on`` option to return non-zero exit codes regardless of ``--fail-under`` value.

* numversion tuple contains integers again to fix multiple pylint's plugins that relied on it

Closes 4420

* Fix false-positive ``too-many-ancestors`` when inheriting from builtin classes,
especially from the ``collections.abc`` module

Closes 4166
Closes 4415

* Stdlib deprecated modules check is moved to stdlib checker. New deprecated
modules are added.

* Fix raising false-positive ``no-member`` on abstract properties

* Created new error message called ``arguments-renamed`` which identifies any changes at the parameter
names of overridden functions.

Closes 3536

* New checker ``consider-using-dict-items``. Emitted  when iterating over dictionary keys and then
indexing the same dictionary with the key within loop body.

Closes 3389

* Don't emit ``import-error`` if import guarded behind ``if sys.version_info >= (x, x)``

* Fix incompatibility with Python 3.6.0 caused by ``typing.Counter`` and ``typing.NoReturn`` usage

Closes 4412

* New checker ``use-maxsplit-arg``. Emitted either when accessing only the first or last
element of ``str.split()``.

Closes 4440

* Add ignore_signatures to duplicate code checker

Closes 3619

* Fix documentation errors in "Block disables" paragraph of User Guide.

* New checker ``unnecessary-dict-index-lookup``. Emitted when iterating over dictionary items
(key-value pairs) and accessing the value by index lookup.

Closes 4470

* New checker``consider-using-from-import``. Emitted when a submodule/member of a package is imported and aliased
with the same name.

Closes 2309

* Allow comma-separated list in ``output-format`` and separate output files for
each specified format.

Closes 1798

* Make ``using-constant-test`` detect constant tests consisting of list literals like ``[]`` and
``[1, 2, 3]``.

* Improved error message of ``unnecessary-comprehension`` checker by providing code suggestion.

Closes 4499

* New checker ``unused-private-member``. Emitted when a private member (i.e., starts with ``__``) of a class
is defined but not used.

Closes 4483

* Fix false negative of ``consider-using-enumerate`` when iterating over an attribute.

Closes 3657

* New checker ``invalid-class-object``. Emitted when a non-class is assigned to a ``__class__`` attribute.

Closes 585

* Fix a crash when a plugin from the configuration could not be loaded and raise an error
'bad-plugin-value' instead

Closes 4555

* Added handling of floating point values when parsing configuration from pyproject.toml

Closes 4518

* ``invalid-length-returned``, now also works when nothing at all is returned
following an upgrade in astroid.

* ``logging-format-interpolation`` and ``logging-not-lazy``, now works on logger
class created from renamed logging import following an upgrade in astroid.

* Fix false-positive ``no-member`` with generic base class

Closes PyCQA/astroid942

* Fix ``assigning-non-slot`` false-positive with base that inherits from ``typing.Generic``

Closes 4509
Closes PyCQA/astroid999

* New checker ``invalid-all-format``. Emitted when ``__all__`` has an invalid format,
i.e. isn't a ``tuple`` or ``list``.

* Fix false positive ``unused-variable`` and ``undefined-variable`` with
Pattern Matching in Python 3.10

* New checker ``await-outside-async``. Emitted when await is used outside an async function.

* Clarify documentation for ``typing`` extension.

Closes 4545

* Add new extension ``CodeStyleChecker``. It includes checkers that can improve code
consistency. As such they don't necessarily provide a performance benefit
and are often times opinionated.

* New checker ``consider-using-tuple``. Emitted when an in-place defined
list or set can be replaced by a tuple.

* New checker ``consider-using-namedtuple-or-dataclass``. Emitted when dictionary values
can be replaced by namedtuples or dataclass instances.

* Fix error that occurred when using ``slice`` as subscript for dict.

* Reduce false-positives around inference of ``.value`` and ``.name``
properties on ``Enum`` subclasses, following an upgrade in astroid

Closes 1932
Closes 2062

* Fix issue with ``cached_property`` that caused ``invalid-overridden-method`` error
when overriding a ``property``.

Closes 4023

* Fix ``unused-import`` false positive for imported modules referenced in
attribute lookups in type comments.

Closes 4603