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.