Cherry pick release notes

Author: Mark-Simulacrum

RELEASES.md

@@ -1,3 +1,213 @@
+Version 1.77.0 (2024-03-21)
+==========================
+
+<a id="1.77.0-Language"></a>
+
+Language
+--------
+
+- [Reveal opaque types within the defining body for exhaustiveness checking.](https://github.com/rust-lang/rust/pull/116821/)
+- [Stabilize C-string literals.](https://github.com/rust-lang/rust/pull/117472/)
+- [Stabilize THIR unsafeck.](https://github.com/rust-lang/rust/pull/117673/)
+- [Add lint `static_mut_refs` to warn on references to mutable statics.](https://github.com/rust-lang/rust/pull/117556/)
+- [Support async recursive calls (as long as they have indirection).](https://github.com/rust-lang/rust/pull/117703/)
+- [Undeprecate lint `unstable_features` and make use of it in the compiler.](https://github.com/rust-lang/rust/pull/118639/)
+- [Make inductive cycles in coherence ambiguous always.](https://github.com/rust-lang/rust/pull/118649/)
+- [Get rid of type-driven traversal in const-eval interning](https://github.com/rust-lang/rust/pull/119044/),
+  only as a [future compatiblity lint](https://github.com/rust-lang/rust/pull/122204) for now.
+- [Deny braced macro invocations in let-else.](https://github.com/rust-lang/rust/pull/119062/)
+
+<a id="1.77.0-Compiler"></a>
+
+Compiler
+--------
+
+- [Include lint `soft_unstable` in future breakage reports.](https://github.com/rust-lang/rust/pull/116274/)
+- [Make `i128` and `u128` 16-byte aligned on x86-based targets.](https://github.com/rust-lang/rust/pull/116672/)
+- [Use `--verbose` in diagnostic output.](https://github.com/rust-lang/rust/pull/119129/)
+- [Improve spacing between printed tokens.](https://github.com/rust-lang/rust/pull/120227/)
+- [Merge the `unused_tuple_struct_fields` lint into `dead_code`.](https://github.com/rust-lang/rust/pull/118297/)
+- [Error on incorrect implied bounds in well-formedness check](https://github.com/rust-lang/rust/pull/118553/),
+  with a temporary exception for Bevy.
+- [Fix coverage instrumentation/reports for non-ASCII source code.](https://github.com/rust-lang/rust/pull/119033/)
+- [Fix `fn`/`const` items implied bounds and well-formedness check.](https://github.com/rust-lang/rust/pull/120019/)
+- [Promote `riscv32{im|imafc}-unknown-none-elf` targets to tier 2.](https://github.com/rust-lang/rust/pull/118704/)
+- Add several new tier 3 targets:
+  - [`aarch64-unknown-illumos`](https://github.com/rust-lang/rust/pull/112936/)
+  - [`hexagon-unknown-none-elf`](https://github.com/rust-lang/rust/pull/117601/)
+  - [`riscv32imafc-esp-espidf`](https://github.com/rust-lang/rust/pull/119738/)
+  - [`riscv32im-risc0-zkvm-elf`](https://github.com/rust-lang/rust/pull/117958/)
+
+Refer to Rust's [platform support page][platform-support-doc]
+for more information on Rust's tiered platform support.
+
+<a id="1.77.0-Libraries"></a>
+
+Libraries
+---------
+
+- [Implement `From<&[T; N]>` for `Cow<[T]>`.](https://github.com/rust-lang/rust/pull/113489/)
+- [Remove special-case handling of `vec.split_off(0)`.](https://github.com/rust-lang/rust/pull/119917/)
+
+<a id="1.77.0-Stabilized-APIs"></a>
+
+Stabilized APIs
+---------------
+
+- [`array::each_ref`](https://doc.rust-lang.org/stable/std/primitive.array.html#method.each_ref)
+- [`array::each_mut`](https://doc.rust-lang.org/stable/std/primitive.array.html#method.each_mut)
+- [`core::net`](https://doc.rust-lang.org/stable/core/net/index.html)
+- [`f32::round_ties_even`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.round_ties_even)
+- [`f64::round_ties_even`](https://doc.rust-lang.org/stable/std/primitive.f64.html#method.round_ties_even)
+- [`mem::offset_of!`](https://doc.rust-lang.org/stable/std/mem/macro.offset_of.html)
+- [`slice::first_chunk`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.first_chunk)
+- [`slice::first_chunk_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.first_chunk_mut)
+- [`slice::split_first_chunk`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_first_chunk)
+- [`slice::split_first_chunk_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_first_chunk_mut)
+- [`slice::last_chunk`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.last_chunk)
+- [`slice::last_chunk_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.last_chunk_mut)
+- [`slice::split_last_chunk`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_last_chunk)
+- [`slice::split_last_chunk_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.split_last_chunk_mut)
+- [`slice::chunk_by`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.chunk_by)
+- [`slice::chunk_by_mut`](https://doc.rust-lang.org/stable/std/primitive.slice.html#method.chunk_by_mut)
+- [`Bound::map`](https://doc.rust-lang.org/stable/std/ops/enum.Bound.html#method.map)
+- [`File::create_new`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.create_new)
+- [`Mutex::clear_poison`](https://doc.rust-lang.org/stable/std/sync/struct.Mutex.html#method.clear_poison)
+- [`RwLock::clear_poison`](https://doc.rust-lang.org/stable/std/sync/struct.RwLock.html#method.clear_poison)
+
+<a id="1.77.0-Cargo"></a>
+
+Cargo
+-----
+
+- [Extend the build directive syntax with `cargo::`.](https://github.com/rust-lang/cargo/pull/12201/)
+- [Stabilize metadata `id` format as `PackageIDSpec`.](https://github.com/rust-lang/cargo/pull/12914/)
+- [Pull out as `cargo-util-schemas` as a crate.](https://github.com/rust-lang/cargo/pull/13178/)
+- [Strip all debuginfo when debuginfo is not requested.](https://github.com/rust-lang/cargo/pull/13257/)
+- [Inherit jobserver from env for all kinds of runners.](https://github.com/rust-lang/cargo/pull/12776/)
+- [Deprecate rustc plugin support in cargo.](https://github.com/rust-lang/cargo/pull/13248/)
+
+<a id="1.77.0-Rustdoc"></a>
+
+Rustdoc
+-----
+
+- [Allows links in markdown headings.](https://github.com/rust-lang/rust/pull/117662/)
+- [Search for tuples and unit by type with `()`.](https://github.com/rust-lang/rust/pull/118194/)
+- [Clean up the source sidebar's hide button.](https://github.com/rust-lang/rust/pull/119066/)
+- [Prevent JS injection from `localStorage`.](https://github.com/rust-lang/rust/pull/120250/)
+
+<a id="1.77.0-Misc"></a>
+
+Misc
+----
+
+- [Recommend version-sorting for all sorting in style guide.](https://github.com/rust-lang/rust/pull/115046/)
+
+<a id="1.77.0-Internal-Changes"></a>
+
+Internal Changes
+----------------
+
+These changes do not affect any public interfaces of Rust, but they represent
+significant improvements to the performance or internals of rustc and related
+tools.
+
+- [Add more weirdness to `weird-exprs.rs`.](https://github.com/rust-lang/rust/pull/119028/)
+
+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/)
+- [Add lint `ambiguous_wide_pointer_comparisons` that supersedes `clippy::vtable_address_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/)
+
 Version 1.75.0 (2023-12-28)
 ==========================