Sep 24, 2025 · Sep 23, 2025 · Sep 23, 2025
diff --git a/CHANGELOG.md b/CHANGELOG.md
diff --git a/docs/usage.md b/docs/usage.md
diff --git a/rest_framework_json_api/serializers.py b/rest_framework_json_api/serializers.py
diff --git a/setup.cfg b/setup.cfg
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Expand Up		@@ -14,6 +14,10 @@ any parts of the framework not mentioned in the documentation should generally b

		* Ensured that an empty `included` array is returned in responses when the `include` query parameter is present but no related resources exist.

	### Deprecated

	* Deprecated support for using Polymorphic resources through [django-polymorphic](https://github.com/jazzband/django-polymorphic). There is currently no replacement. In case you are affected of this change please join [our discussion](https://github.com/django-json-api/django-rest-framework-json-api/discussions/1194).

		## [8.0.0] - 2025年07月24日

		### Added
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Expand Up		@@ -863,6 +863,17 @@ field_name_mapping = {

		### Working with polymorphic resources

	--

	Deprecation notice:


	Support for using Polymorphic resources through [django-polymorphic](https://github.com/jazzband/django-polymorphic) is deprecated and will be removed in a future release.

	There is currently no replacement. In case you are affected of this change please join [our discussion](https://github.com/django-json-api/django-rest-framework-json-api/discussions/1194).

	---

		Polymorphic resources allow you to use specialized subclasses without requiring
		special endpoints to expose the specialized versions. For example, if you had a
		`Project` that could be either an `ArtProject` or a `ResearchProject`, you can
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		@@ -1,3 +1,4 @@
	import warnings
		from collections.abc import Mapping

		from django.core.exceptions import ObjectDoesNotExist
Expand Down Expand Up		@@ -342,6 +343,16 @@ def __new__(cls, name, bases, attrs):
		if not parents:
		return new_class

	warnings.warn(
	DeprecationWarning(
	"Support for polymorphic resources is deprecated."
	"There is currently no replacement. In case you are affected of this "
	"change please join discussion at "
	"https://github.com/django-json-api/django-rest-framework-json-api/discussions/1194."
	),
	stacklevel=2,
	)

		polymorphic_serializers = getattr(new_class, "polymorphic_serializers", None)
		assert (
		polymorphic_serializers is not None
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Expand Up		@@ -63,6 +63,7 @@ DJANGO_SETTINGS_MODULE=example.settings.test
		filterwarnings =
		error::DeprecationWarning
		error::PendingDeprecationWarning
	ignore:Support for polymorphic resources is deprecated
		testpaths =
		example
		tests