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| 1 | +Version 1.76.0 (2024-02-08) |
| 2 | +========================== |
| 3 | + |
| 4 | +<a id="1.76.0-Language"></a> |
| 5 | + |
| 6 | +Language |
| 7 | +-------- |
| 8 | +- [Document Rust ABI compatibility between various types](https://github.com/rust-lang/rust/pull/115476/) |
| 9 | +- [Also: guarantee that char and u32 are ABI-compatible](https://github.com/rust-lang/rust/pull/118032/) |
| 10 | +- [Add lint `ambiguous_wide_pointer_comparisons` that supersedes `clippy::vtable_address_comparisons`](https://github.com/rust-lang/rust/pull/117758) |
| 11 | + |
| 12 | +<a id="1.76.0-Compiler"></a> |
| 13 | + |
| 14 | +Compiler |
| 15 | +-------- |
| 16 | +- [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/) |
| 17 | +- [Soundness fix: fix computing the offset of an unsized field in a packed struct](https://github.com/rust-lang/rust/pull/118540/) |
| 18 | +- [Soundness fix: fix dynamic size/align computation logic for packed types with dyn Trait tail](https://github.com/rust-lang/rust/pull/118538/) |
| 19 | +- [Add `$message_type` field to distinguish json diagnostic outputs](https://github.com/rust-lang/rust/pull/115691/) |
| 20 | +- [Enable Rust to use the EHCont security feature of Windows](https://github.com/rust-lang/rust/pull/118013/) |
| 21 | +- [Add tier 3 {x86_64,i686}-win7-windows-msvc targets](https://github.com/rust-lang/rust/pull/118150/) |
| 22 | +- [Add tier 3 aarch64-apple-watchos target](https://github.com/rust-lang/rust/pull/119074/) |
| 23 | +- [Add tier 3 arm64e-apple-ios & arm64e-apple-darwin targets](https://github.com/rust-lang/rust/pull/115526/) |
| 24 | + |
| 25 | +Refer to Rust's [platform support page][platform-support-doc] |
| 26 | +for more information on Rust's tiered platform support. |
| 27 | + |
| 28 | +<a id="1.76.0-Libraries"></a> |
| 29 | + |
| 30 | +Libraries |
| 31 | +--------- |
| 32 | +- [Add a column number to `dbg!()`](https://github.com/rust-lang/rust/pull/114962/) |
| 33 | +- [Add `std::hash::{DefaultHasher, RandomState}` exports](https://github.com/rust-lang/rust/pull/115694/) |
| 34 | +- [Fix rounding issue with exponents in fmt](https://github.com/rust-lang/rust/pull/116301/) |
| 35 | +- [Add T: ?Sized to `RwLockReadGuard` and `RwLockWriteGuard`'s Debug impls.](https://github.com/rust-lang/rust/pull/117138/) |
| 36 | +- [Windows: Allow `File::create` to work on hidden files](https://github.com/rust-lang/rust/pull/116438/) |
| 37 | + |
| 38 | +<a id="1.76.0-Stabilized-APIs"></a> |
| 39 | + |
| 40 | +Stabilized APIs |
| 41 | +--------------- |
| 42 | + |
| 43 | +- [`Arc::unwrap_or_clone`](https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#method.unwrap_or_clone) |
| 44 | +- [`Rc::unwrap_or_clone`](https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#method.unwrap_or_clone) |
| 45 | +- [`Result::inspect`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect) |
| 46 | +- [`Result::inspect_err`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.inspect_err) |
| 47 | +- [`Option::inspect`](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.inspect) |
| 48 | +- [`type_name_of_val`](https://doc.rust-lang.org/stable/std/any/fn.type_name_of_val.html) |
| 49 | +- [`std::hash::{DefaultHasher, RandomState}`](https://doc.rust-lang.org/stable/std/hash/index.html#structs) |
| 50 | + These were previously available only through `std::collections::hash_map`. |
| 51 | +- [`ptr::{from_ref, from_mut}`](https://doc.rust-lang.org/stable/std/ptr/fn.from_ref.html) |
| 52 | +- [`ptr::addr_eq`](https://doc.rust-lang.org/stable/std/ptr/fn.addr_eq.html) |
| 53 | + |
| 54 | +<a id="1.76.0-Cargo"></a> |
| 55 | + |
| 56 | +Cargo |
| 57 | +----- |
| 58 | + |
| 59 | +See [Cargo release notes](https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-176-2024-02-08). |
| 60 | + |
| 61 | +<a id="1.76.0-Rustdoc"></a> |
| 62 | + |
| 63 | +Rustdoc |
| 64 | +------- |
| 65 | + |
| 66 | +- [Don't merge cfg and doc(cfg) attributes for re-exports](https://github.com/rust-lang/rust/pull/113091/) |
| 67 | +- [rustdoc: allow resizing the sidebar / hiding the top bar](https://github.com/rust-lang/rust/pull/115660/) |
| 68 | +- [rustdoc-search: add support for traits and associated types](https://github.com/rust-lang/rust/pull/116085/) |
| 69 | +- [rustdoc: Add highlighting for comments in items declaration](https://github.com/rust-lang/rust/pull/117869/) |
| 70 | + |
| 71 | +<a id="1.76.0-Compatibility-Notes"></a> |
| 72 | + |
| 73 | +Compatibility Notes |
| 74 | +------------------- |
| 75 | +- [Add allow-by-default lint for unit bindings](https://github.com/rust-lang/rust/pull/112380/) |
| 76 | + This is expected to be upgraded to a warning by default in a future Rust |
| 77 | + release. Some macros emit bindings with type `()` with user-provided spans, |
| 78 | + which means that this lint will warn for user code. |
| 79 | +- [Remove x86_64-sun-solaris target.](https://github.com/rust-lang/rust/pull/118091/) |
| 80 | +- [Remove asmjs-unknown-emscripten target](https://github.com/rust-lang/rust/pull/117338/) |
| 81 | +- [Report errors in jobserver inherited through environment variables](https://github.com/rust-lang/rust/pull/113730/) |
| 82 | + This [may warn](https://github.com/rust-lang/rust/issues/120515) on benign problems too. |
| 83 | +- [Update the minimum external LLVM to 16.](https://github.com/rust-lang/rust/pull/117947/) |
| 84 | +- [Improve `print_tts`](https://github.com/rust-lang/rust/pull/114571/) |
| 85 | + This change can break some naive manual parsing of token trees in proc macro |
| 86 | + code which expect a particular structure after `.to_string()`, rather than just arbitrary Rust code. |
| 87 | +- [Make `IMPLIED_BOUNDS_ENTAILMENT` into a hard error from a lint](https://github.com/rust-lang/rust/pull/117984/) |
| 88 | +- [Vec's allocation behavior was changed when collecting some iterators](https://github.com/rust-lang/rust/pull/110353) |
| 89 | + Allocation behavior is currently not specified, nevertheless changes can be surprising. |
| 90 | + See [`impl FromIterator for Vec`](https://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#impl-FromIterator%3CT%3E-for-Vec%3CT%3E) |
| 91 | + for more details. |
| 92 | +- [Properly reject `default` on free const items](https://github.com/rust-lang/rust/pull/117818/) |
| 93 | + |
1 | 94 | Version 1.75.0 (2023-12-28) |
2 | 95 | ========================== |
3 | 96 |
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