v4.10.3
-------

* ``jsonschema.validators.validator_for`` now properly uses the explicitly
  provided default validator even if the ``$schema`` URI is not found.

v4.10.2
-------

* Fix a second place where subclasses may have added attrs attributes (#982).

v4.10.1
-------

* Fix Validator.evolve (and APIs like ``iter_errors`` which call it) for cases
  where the validator class has been subclassed. Doing so wasn't intended to be
  public API, but given it didn't warn or raise an error it's of course
  understandable. The next release however will make it warn (and a future one
  will make it error). If you need help migrating usage of inheriting from a
  validator class feel free to open a discussion and I'll try to give some
  guidance (#982).

v4.10.0
-------

* Add support for referencing schemas with ``$ref`` across different versions
  of the specification than the referrer's

v4.9.1
------

* Update some documentation examples to use newer validator releases in their
  sample code.

v4.9.0
------

* Fix relative ``$ref`` resolution when the base URI is a URN or other scheme
  (#544).
* ``pkgutil.resolve_name`` is now used to retrieve validators
  provided on the command line. This function is only available on
  3.9+, so 3.7 and 3.8 (which are still supported) now rely on the
  `pkgutil_resolve_name <https://pypi.org/project/pkgutil_resolve_name/>`_
  backport package. Note however that the CLI itself is due
  to be deprecated shortly in favor of `check-jsonschema
  <https://github.com/python-jsonschema/check-jsonschema>`_.

v4.8.0
------

* ``best_match`` no longer traverses into ``anyOf`` and ``oneOf`` when all of
  the errors within them seem equally applicable. This should lead to clearer
  error messages in some cases where no branches were matched.

v4.7.2
------

* Also have ``best_match`` handle cases where the ``type`` validator is an
  array.

v4.7.1
------

* Minor tweak of the PyPI hyperlink names

v4.7.0
------

* Enhance ``best_match`` to prefer errors from branches of the schema which
  match the instance's type (#728)

v4.6.2
------

* Fix a number of minor typos in docstrings, mostly private ones (#969)

v4.6.1
------

* Gut the (incomplete) implementation of ``recursiveRef`` on draft 2019. It
  needs completing, but for now can lead to recursion errors (e.g. #847).

v4.6.0
------

* Fix ``unevaluatedProperties`` and ``unevaluatedItems`` for types they should
  ignore (#949)
* ``jsonschema`` now uses `hatch <https://hatch.pypa.io/>`_ for its build
  process. This should be completely transparent to end-users (and only matters
  to contributors).

v4.5.1
------

* Revert changes to ``$dynamicRef`` which caused a performance regression
  in v4.5.0

v4.5.0
------

* Validator classes for each version now maintain references to the correct
  corresponding format checker (#905)
* Development has moved to a `GitHub organization
  <https://github.com/python-jsonschema/>`_.
  No functional behavior changes are expected from the change.

v4.4.0
------

* Add ``mypy`` support (#892)
* Add support for Python 3.11

v4.3.3
------

* Properly report deprecation warnings at the right stack level (#899)

v4.3.2
------

* Additional performance improvements for resolving refs (#896)

v4.3.1
------

* Resolving refs has had performance improvements (#893)

v4.3.0
------

* Fix undesired fallback to brute force container uniqueness check on
  certain input types (#893)
* Implement a PEP544 Protocol for validator classes (#890)

v4.2.1
------

* Pin ``importlib.resources`` from below (#877)

v4.2.0
------

* Use ``importlib.resources`` to load schemas (#873)
* Ensure all elements of arrays are verified for uniqueness by ``uniqueItems``
  (#866)

v4.1.2
------

* Fix ``dependentSchemas`` to properly consider non-object instances to be
  valid (#850)

v4.1.1
------

* Fix ``prefixItems`` not indicating which item was invalid within the instance
  path (#862)

v4.1.0
------

* Add Python 3.10 to the list of supported Python versions

v4.0.1
------

* Fix the declaration of minimum supported Python version (#846)

v4.0.0
------

* Partial support for Draft 2020-12 (as well as 2019-09).
  Thanks to Thomas Schmidt and Harald Nezbeda.
* ``False`` and ``0`` are now properly considered non-equal even
  recursively within a container (#686). As part of this change,
  ``uniqueItems`` validation may be *slower* in some cases. Please feel
  free to report any significant performance regressions, though in
  some cases they may be difficult to address given the specification
  requirement.
* The CLI has been improved, and in particular now supports a ``--output``
  option (with ``plain`` (default) or ``pretty`` arguments) to control the
  output format. Future work may add additional machine-parsable output
  formats.
* Code surrounding ``DEFAULT_TYPES`` and the legacy mechanism for
  specifying types to validators have been removed, as per the deprecation
  policy. Validators should use the ``TypeChecker`` object to customize
  the set of Python types corresponding to JSON Schema types.
* Validation errors now have a ``json_path`` attribute, describing their
  location in JSON path format
* Support for the IP address and domain name formats has been improved
* Support for Python 2 and 3.6 has been dropped, with ``python_requires``
  properly set.
* ``multipleOf`` could overflow when given sufficiently large numbers. Now,
  when an overflow occurs, ``jsonschema`` will fall back to using fraction
  division (#746).
* ``jsonschema.__version__``, ``jsonschema.validators.validators``,
  ``jsonschema.validators.meta_schemas`` and
  ``jsonschema.RefResolver.in_scope`` have been deprecated, as has
  passing a second-argument schema to ``Validator.iter_errors`` and
  ``Validator.is_valid``.

v3.2.0
------

* Added a ``format_nongpl`` setuptools extra, which installs only ``format``
  dependencies that are non-GPL (#619).

v3.1.1
------

* Temporarily revert the switch to ``js-regex`` until #611 and #612 are
  resolved.

v3.1.0
------

* Regular expressions throughout schemas now respect the ECMA 262 dialect, as
  recommended by the specification (#609).

v3.0.2
------

* Fixed a bug where ``0`` and ``False`` were considered equal by
  ``const`` and ``enum`` (#575).

v3.0.1
------

* Fixed a bug where extending validators did not preserve their notion
  of which validator property contains ``$id`` information.

v3.0.0
------

* Support for Draft 6 and Draft 7
* Draft 7 is now the default
* New ``TypeChecker`` object for more complex type definitions (and overrides)
* Falling back to isodate for the date-time format checker is no longer
  attempted, in accordance with the specification

v2.6.0
------

* Support for Python 2.6 has been dropped.
* Improve a few error messages for ``uniqueItems`` (#224) and
  ``additionalProperties`` (#317)
* Fixed an issue with ``ErrorTree``'s handling of multiple errors (#288)

v2.5.0
------

* Improved performance on CPython by adding caching around ref resolution
  (#203)

v2.4.0
------

* Added a CLI (#134)
* Added absolute path and absolute schema path to errors (#120)
* Added ``relevance``
* Meta-schemas are now loaded via ``pkgutil``

v2.3.0
------

* Added ``by_relevance`` and ``best_match`` (#91)
* Fixed ``format`` to allow adding formats for non-strings (#125)
* Fixed the ``uri`` format to reject URI references (#131)

v2.2.0
------

* Compile the host name regex (#127)
* Allow arbitrary objects to be types (#129)

v2.1.0
------

* Support RFC 3339 datetimes in conformance with the spec
* Fixed error paths for additionalItems + items (#122)
* Fixed wording for min / maxProperties (#117)


v2.0.0
------

* Added ``create`` and ``extend`` to ``jsonschema.validators``
* Removed ``ValidatorMixin``
* Fixed array indices ref resolution (#95)
* Fixed unknown scheme defragmenting and handling (#102)


v1.3.0
------

* Better error tracebacks (#83)
* Raise exceptions in ``ErrorTree``\s for keys not in the instance (#92)
* __cause__ (#93)


v1.2.0
------

* More attributes for ValidationError (#86)
* Added ``ValidatorMixin.descend``
* Fixed bad ``RefResolutionError`` message (#82)


v1.1.0
------

* Canonicalize URIs (#70)
* Allow attaching exceptions to ``format`` errors (#77)


v1.0.0
------

* Support for Draft 4
* Support for format
* Longs are ints too!
* Fixed a number of issues with ``$ref`` support (#66)
* Draft4Validator is now the default
* ``ValidationError.path`` is now in sequential order
* Added ``ValidatorMixin``


v0.8.0
------

* Full support for JSON References
* ``validates`` for registering new validators
* Documentation
* Bugfixes

    * uniqueItems not so unique (#34)
    * Improper any (#47)


v0.7
----

* Partial support for (JSON Pointer) ``$ref``
* Deprecations

  * ``Validator`` is replaced by ``Draft3Validator`` with a slightly different
    interface
  * ``validator(meta_validate=False)``


v0.6
----

* Bugfixes

  * Issue #30 - Wrong behavior for the dependencies property validation
  * Fixed a miswritten test


v0.5
----

* Bugfixes

  * Issue #17 - require path for error objects
  * Issue #18 - multiple type validation for non-objects


v0.4
----

* Preliminary support for programmatic access to error details (Issue #5).
  There are certainly some corner cases that don't do the right thing yet, but
  this works mostly.

    In order to make this happen (and also to clean things up a bit), a number
    of deprecations are necessary:

        * ``stop_on_error`` is deprecated in ``Validator.__init__``. Use
          ``Validator.iter_errors()`` instead.
        * ``number_types`` and ``string_types`` are deprecated there as well.
          Use ``types={"number" : ..., "string" : ...}`` instead.
        * ``meta_validate`` is also deprecated, and instead is now accepted as
          an argument to ``validate``, ``iter_errors`` and ``is_valid``.

* A bugfix or two


v0.3
----

* Default for unknown types and properties is now to *not* error (consistent
  with the schema).
* Python 3 support
* Removed dependency on SecureTypes now that the hash bug has been resolved.
* "Numerous bug fixes" -- most notably, a divisibleBy error for floats and a
  bunch of missing typechecks for irrelevant properties.
