From 27353d4cccc928ceb51a0f111634cb663566c633 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Fri, 3 May 2024 14:56:05 +0200 Subject: [PATCH] release notes 1.78: add link to interior-mut breaking change --- RELEASES.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/RELEASES.md b/RELEASES.md index 104ea497ba4..3080f03c721 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -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.