Version 1.76.0 (2024-02-08)

==========================

<a id="1.76.0-Language"></a>

Language

--------

- [Document Rust ABI compatibility between various types](https://github.com/rust-lang/rust/pull/115476/)

- [Also: guarantee that char and u32 are ABI-compatible](https://github.com/rust-lang/rust/pull/118032/)

- [Warn against ambiguous wide pointer comparisons](https://github.com/rust-lang/rust/pull/117758/)

<a id="1.76.0-Compiler"></a>

Compiler

--------

- [Lint pinned `#[must_use]` pointers (in particular, `Box<T>` where `T` is `#[must_use]`) in `unused_must_use`.](https://github.com/rust-lang/rust/pull/118054/)

- [Soundness fix: fix computing the offset of an unsized field in a packed struct](https://github.com/rust-lang/rust/pull/118540/)

- [Soundness fix: fix dynamic size/align computation logic for packed types with dyn Trait tail](https://github.com/rust-lang/rust/pull/118538/)

- [Add `$message_type` field to distinguish json diagnostic outputs](https://github.com/rust-lang/rust/pull/115691/)

- [Enable Rust to use the EHCont security feature of Windows](https://github.com/rust-lang/rust/pull/118013/)

- [Add tier 3 {x86_64,i686}-win7-windows-msvc targets](https://github.com/rust-lang/rust/pull/118150/)

- [Add tier 3 aarch64-apple-watchos target](https://github.com/rust-lang/rust/pull/119074/)

- [Add tier 3 arm64e-apple-ios & arm64e-apple-darwin targets](https://github.com/rust-lang/rust/pull/115526/)

Refer to Rust's [platform support page][platform-support-doc]

for more information on Rust's tiered platform support.

<a id="1.76.0-Libraries"></a>

Libraries

---------

- [Add a column number to `dbg!()`](https://github.com/rust-lang/rust/pull/114962/)

- [Add `std::hash::{DefaultHasher, RandomState}` exports](https://github.com/rust-lang/rust/pull/115694/)

- [Fix rounding issue with exponents in fmt](https://github.com/rust-lang/rust/pull/116301/)

- [Add T: ?Sized to `RwLockReadGuard` and `RwLockWriteGuard`'s Debug impls.](https://github.com/rust-lang/rust/pull/117138/)

- [Windows: Allow `File::create` to work on hidden files](https://github.com/rust-lang/rust/pull/116438/)

<a id="1.76.0-Stabilized-APIs"></a>

Stabilized APIs

---------------

- [`Arc::unwrap_or_clone`](https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#method.unwrap_or_clone)

- [`Rc::unwrap_or_clone`](https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#method.unwrap_or_clone)

- [`Result::inspect`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect)

- [`Result::inspect_err`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect_err)

- [`Option::inspect`](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.inspect)

- [`type_name_of_val`](https://doc.rust-lang.org/stable/std/any/fn.type_name_of_val.html)

- [`std::hash::{DefaultHasher, RandomState}`](https://doc.rust-lang.org/stable/std/hash/index.html#structs)

These were previously available only through `std::collections::hash_map`.

- [`ptr::{from_ref, from_mut}`](https://doc.rust-lang.org/stable/std/ptr/fn.from_ref.html)

- [`ptr::addr_eq`](https://doc.rust-lang.org/stable/std/ptr/fn.addr_eq.html)

<a id="1.76.0-Cargo"></a>

Cargo

-----

See [Cargo release notes](https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-176-2024-02-08).

<a id="1.76.0-Rustdoc"></a>

Rustdoc

-------

- [Don't merge cfg and doc(cfg) attributes for re-exports](https://github.com/rust-lang/rust/pull/113091/)

- [rustdoc: allow resizing the sidebar / hiding the top bar](https://github.com/rust-lang/rust/pull/115660/)

- [rustdoc-search: add support for traits and associated types](https://github.com/rust-lang/rust/pull/116085/)

- [rustdoc: Add highlighting for comments in items declaration](https://github.com/rust-lang/rust/pull/117869/)

<a id="1.76.0-Compatibility-Notes"></a>

Compatibility Notes

-------------------

- [Add allow-by-default lint for unit bindings](https://github.com/rust-lang/rust/pull/112380/)

This is expected to be upgraded to a warning by default in a future Rust

release. Some macros emit bindings with type `()` with user-provided spans,

which means that this lint will warn for user code.

- [Remove x86_64-sun-solaris target.](https://github.com/rust-lang/rust/pull/118091/)

- [Remove asmjs-unknown-emscripten target](https://github.com/rust-lang/rust/pull/117338/)

- [Report errors in jobserver inherited through environment variables](https://github.com/rust-lang/rust/pull/113730/)

This [may warn](https://github.com/rust-lang/rust/issues/120515) on benign problems too.

- [Update the minimum external LLVM to 16.](https://github.com/rust-lang/rust/pull/117947/)

- [Improve `print_tts`](https://github.com/rust-lang/rust/pull/114571/)

This change can break some naive manual parsing of token trees in proc macro

code which expect a particular structure after `.to_string()`, rather than just arbitrary Rust code.

- [Make `IMPLIED_BOUNDS_ENTAILMENT` into a hard error from a lint](https://github.com/rust-lang/rust/pull/117984/)

- [Vec's allocation behavior was changed when collecting some iterators](https://github.com/rust-lang/rust/pull/110353)

Allocation behavior is currently not specified, nevertheless changes can be surprising.

See [`impl FromIterator for Vec`](https://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#impl-FromIterator%3CT%3E-for-Vec%3CT%3E)

for more details.

- [Properly reject `default` on free const items](https://github.com/rust-lang/rust/pull/117818/)