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CHANGELOG entry for covariance in super-interfaces.
Change-Id: I4849bca9c5059757b89124c044bc99bfc83dfbfb Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104161 Reviewed-by: Kevin Moore <kevmoo@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
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CHANGELOG.md
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CHANGELOG.md
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@ -4,9 +4,20 @@
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### Language
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* **Breaking change:** Covariance of type variables used in super-interfaces
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is now enforced (issue [35097][]). For example, the following code was
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previously accepted and will now be rejected:
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```dart
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class A<X> {};
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class B<X> extends A<void Function(X)> {};
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```
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* The identifier `async` can now be used in asynchronous and generator
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functions.
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[35097]: https://github.com/dart-lang/sdk/issues/35097
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### Core libraries
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#### `dart:developer`
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