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release notes 1.78: add link to interior-mut breaking change #124656

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May 4, 2024
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release notes 1.78: add link to interior-mut breaking change #124656

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4 changes: 4 additions & 0 deletions RELEASES.md
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Expand Up @@ -102,6 +102,10 @@ Compatibility Notes
- [Change equality of higher ranked types to not rely on subtyping](https://github.com/rust-lang/rust/pull/118247)
- [When called, additionally check bounds on normalized function return type](https://github.com/rust-lang/rust/pull/118882)
- [Expand coverage for `arithmetic_overflow` lint](https://github.com/rust-lang/rust/pull/119432/)
- [Fix detection of potential interior mutability in `const` initializers](https://github.com/rust-lang/rust/issues/121250)
This code was accidentally accepted. The fix can break generic code that borrows a value of unknown type,
as there is currently no way to declare "this type has no interior mutability". In the future, stabilizing
the [`Freeze` trait](https://github.com/rust-lang/rust/issues/121675) will allow proper support for such code.

<a id="1.78.0-Internal-Changes"></a>

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