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< h1 id = "django-rest-framework-38" > < a class = "toclink" href = "#django-rest-framework-38" > Django REST framework 3.8< / a > < / h1 >
< p > The 3.8 release is a maintenance focused release resolving a large number of previously outstanding issues and laying
the foundations for future changes.< / p >
< hr / >
< h2 id = "funding" > < a class = "toclink" href = "#funding" > Funding< / a > < / h2 >
< p > If you use REST framework commercially and would like to see this work continue, we strongly encourage you to invest in its continued development by
< strong > < a href = "../funding/" > signing up for a paid plan< / a > < / strong > .< / p >
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< p > < em > We'd like to say thanks in particular our premium backers, < a href = "https://www.rover.com/careers/" > Rover< / a > , < a href = "https://sentry.io/welcome/" > Sentry< / a > , < a href = "https://getstream.io/?utm_source=drf&utm_medium=banner&utm_campaign=drf" > Stream< / a > , < a href = "https://machinalis.com/" > Machinalis< / a > , and < a href = "https://rollbar.com" > Rollbar< / a > .< / em > < / p >
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< h2 id = "breaking-changes" > < a class = "toclink" href = "#breaking-changes" > Breaking Changes< / a > < / h2 >
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< h3 id = "altered-the-behaviour-of-read_only-plus-default-on-field" > < a class = "toclink" href = "#altered-the-behaviour-of-read_only-plus-default-on-field" > Altered the behaviour of < code > read_only< / code > plus < code > default< / code > on Field.< / a > < / h3 >
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< p > < a href = "https://github.com/encode/django-rest-framework/issues/5886" > #5886< / a > < code > read_only< / code > fields will now < strong > always< / strong > be excluded from writable fields.< / p >
< p > Previously < code > read_only< / code > fields when combined with a < code > default< / code > value would use the < code > default< / code > for create and update
operations. This was counter-intuitive in some circumstances and led to difficulties supporting dotted < code > source< / code >
attributes on nullable relations.< / p >
< p > In order to maintain the old behaviour you may need to pass the value of < code > read_only< / code > fields when calling < code > save()< / code > in
the view:< / p >
< pre > < code > def perform_create(self, serializer):
serializer.save(owner=self.request.user)
< / code > < / pre >
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< p > Alternatively you may override < code > save()< / code > or < code > create()< / code > or < code > update()< / code > on the serializer as appropriate.< / p >
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< hr / >
< h2 id = "deprecations" > < a class = "toclink" href = "#deprecations" > Deprecations< / a > < / h2 >
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< h3 id = "action-decorator-replaces-list_route-and-detail_route" > < a class = "toclink" href = "#action-decorator-replaces-list_route-and-detail_route" > < code > action< / code > decorator replaces < code > list_route< / code > and < code > detail_route< / code > < / a > < / h3 >
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< p > < a href = "https://github.com/encode/django-rest-framework/issues/5705" > #5705< / a > < code > list_route< / code > and < code > detail_route< / code > have been merge into a single < code > action< / code > decorator. This improves viewset action introspection, and will allow extra actions to be displayed in the Browsable API in future versions.< / p >
< p > Both < code > list_route< / code > and < code > detail_route< / code > are now pending deprecation. They will be deprecated in 3.9 and removed entirely
in 3.10.< / p >
< p > The new < code > action< / code > decorator takes a boolean < code > detail< / code > argument.< / p >
< ul >
< li > Replace < code > detail_route< / code > uses with < code > @action(detail=True)< / code > .< / li >
< li > Replace < code > list_route< / code > uses with < code > @action(detail=False)< / code > .< / li >
< / ul >
< h3 id = "exclude_from_schema" > < a class = "toclink" href = "#exclude_from_schema" > < code > exclude_from_schema< / code > < / a > < / h3 >
< p > Both < code > APIView.exclude_from_schema< / code > and the < code > exclude_from_schema< / code > argument to the < code > @api_view< / code > decorator are now deprecated. They will be removed entirely in 3.9.< / p >
< p > For < code > APIView< / code > you should instead set a < code > schema = None< / code > attribute on the view class.< / p >
< p > For function based views the < code > @schema< / code > decorator can be used to exclude the view from the schema, by using < code > @schema(None)< / code > .< / p >
< hr / >
< h2 id = "minor-fixes-and-improvements" > < a class = "toclink" href = "#minor-fixes-and-improvements" > Minor fixes and improvements< / a > < / h2 >
< p > There are a large number of minor fixes and improvements in this release. See the < a href = "../release-notes/" > release notes< / a > page
for a complete listing.< / p >
< h2 id = "whats-next" > < a class = "toclink" href = "#whats-next" > What's next< / a > < / h2 >
< p > We're currently working towards moving to using < a href = "https://www.openapis.org/" > OpenAPI< / a > as our default schema output. We'll also be revisiting our API documentation generation and client libraries.< / p >
< p > We're doing some consolidation in order to make this happen. It's planned that 3.9 will drop the < code > coreapi< / code > and < code > coreschema< / code > libraries, and instead use < code > apistar< / code > for the API documentation generation, schema generation, and API client libraries.< / p >
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