Add release notes for 1.75.0

RELEASES.md

@@ -1,3 +1,128 @@
+Version 1.75.0 (2023-12-28)
+==========================
+
+<a id="1.75.0-Language"></a>
+
+Language
+--------
+
+- [Stabilize `async fn` and return-position `impl Trait` in traits.](https://github.com/rust-lang/rust/pull/115822/)
+- [Allow function pointer signatures containing `&mut T` in `const` contexts.](https://github.com/rust-lang/rust/pull/116015/)
+- [Guarantee that `char` has the same size and alignment as `u32`.](https://github.com/rust-lang/rust/pull/116894/)
+- [Document that the null pointer has the 0 address.](https://github.com/rust-lang/rust/pull/116988/)
+- [Allow partially moved values in `match`.](https://github.com/rust-lang/rust/pull/103208/)
+- [Add notes about non-compliant FP behavior on 32bit x86 targets.](https://github.com/rust-lang/rust/pull/113053/)
+- [Stabilize ratified RISC-V target features.](https://github.com/rust-lang/rust/pull/116485/)
+
+<a id="1.75.0-Compiler"></a>
+
+Compiler
+--------
+
+- [Match usize/isize exhaustively with half-open ranges.](https://github.com/rust-lang/rust/pull/116692/)
+- [Rework negative coherence to properly consider impls that only partly overlap.](https://github.com/rust-lang/rust/pull/112875/)
+- [Bump `COINDUCTIVE_OVERLAP_IN_COHERENCE` to deny, and warn in dependencies.](https://github.com/rust-lang/rust/pull/116493/)
+- [Consider alias bounds when computing liveness in NLL.](https://github.com/rust-lang/rust/pull/116733/)
+- [Add the V (vector) extension to the `riscv64-linux-android` target spec.](https://github.com/rust-lang/rust/pull/116618/)
+- Add several new tier 3 targets:
+    - [`csky-unknown-linux-gnuabiv2hf`](https://github.com/rust-lang/rust/pull/117049/)
+    - [`i586-unknown-netbsd`](https://github.com/rust-lang/rust/pull/117170/)
+    - [`mipsel-unknown-netbsd`](https://github.com/rust-lang/rust/pull/117356/)
+
+Refer to Rust's [platform support page][platform-support-doc]
+for more information on Rust's tiered platform support.
+
+<a id="1.75.0-Libraries"></a>
+
+Libraries
+---------
+
+- [Override `Waker::clone_from` to avoid cloning `Waker`s unnecessarily.](https://github.com/rust-lang/rust/pull/96979/)
+- [Implement `BufRead` for `VecDeque<u8>`.](https://github.com/rust-lang/rust/pull/110604/)
+- [Implement `FusedIterator` for `DecodeUtf16` when the inner iterator does.](https://github.com/rust-lang/rust/pull/110729/)
+- [Implement `Not, Bit{And,Or}{,Assign}` for IP addresses.](https://github.com/rust-lang/rust/pull/113747/)
+- [Implement `Default` for `ExitCode`.](https://github.com/rust-lang/rust/pull/114589/)
+- [Guarantee representation of None in NPO](https://github.com/rust-lang/rust/pull/115333/)
+- [Don't panic in `<BorrowedCursor as io::Write>::write`](https://github.com/rust-lang/rust/pull/115460/)
+- [Document when atomic loads are guaranteed read-only.](https://github.com/rust-lang/rust/pull/115577/)
+- [Broaden the consequences of recursive TLS initialization.](https://github.com/rust-lang/rust/pull/116172/)
+- [Windows: Support sub-millisecond sleep.](https://github.com/rust-lang/rust/pull/116461/)
+- [Fix generic bound of `str::SplitInclusive`'s `DoubleEndedIterator` impl](https://github.com/rust-lang/rust/pull/100806/)
+- [Fix exit status / wait status on non-Unix `cfg(unix)` platforms.](https://github.com/rust-lang/rust/pull/115108/)
+
+<a id="1.75.0-Stabilized-APIs"></a>
+
+Stabilized APIs
+---------------
+
+- [`Atomic*::from_ptr`](https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicUsize.html#method.from_ptr)
+- [`FileTimes`](https://doc.rust-lang.org/stable/std/fs/struct.FileTimes.html)
+- [`FileTimesExt`](https://doc.rust-lang.org/stable/std/os/windows/fs/trait.FileTimesExt.html)
+- [`File::set_modified`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_modified)
+- [`File::set_times`](https://doc.rust-lang.org/stable/std/fs/struct.File.html#method.set_times)
+- [`IpAddr::to_canonical`](https://doc.rust-lang.org/stable/core/net/enum.IpAddr.html#method.to_canonical)
+- [`Ipv6Addr::to_canonical`](https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.to_canonical)
+- [`Option::as_slice`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.as_slice)
+- [`Option::as_mut_slice`](https://doc.rust-lang.org/stable/core/option/enum.Option.html#method.as_mut_slice)
+- [`pointer::byte_add`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_add)
+- [`pointer::byte_offset`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_offset)
+- [`pointer::byte_offset_from`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_offset_from)
+- [`pointer::byte_sub`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.byte_sub)
+- [`pointer::wrapping_byte_add`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_add)
+- [`pointer::wrapping_byte_offset`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_offset)
+- [`pointer::wrapping_byte_sub`](https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.wrapping_byte_sub)
+
+These APIs are now stable in const contexts:
+
+- [`Ipv6Addr::to_ipv4_mapped`](https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.to_ipv4_mapped)
+- [`MaybeUninit::assume_init_read`](https://doc.rust-lang.org/stable/core/mem/union.MaybeUninit.html#method.assume_init_read)
+- [`MaybeUninit::zeroed`](https://doc.rust-lang.org/stable/core/mem/union.MaybeUninit.html#method.zeroed)
+- [`mem::discriminant`](https://doc.rust-lang.org/stable/core/mem/fn.discriminant.html)
+- [`mem::zeroed`](https://doc.rust-lang.org/stable/core/mem/fn.zeroed.html)
+
+<a id="1.75.0-Cargo"></a>
+
+Cargo
+-----
+
+- [Add new packages to `[workspace.members]` automatically.](https://github.com/rust-lang/cargo/pull/12779/)
+- [Allow version-less `Cargo.toml` manifests.](https://github.com/rust-lang/cargo/pull/12786/)
+- [Make browser links out of HTML file paths.](https://github.com/rust-lang/cargo/pull/12889)
+
+<a id="1.75.0-Rustdoc"></a>
+
+Rustdoc
+-------
+
+- [Accept less invalid Rust in rustdoc.](https://github.com/rust-lang/rust/pull/117450/)
+- [Document lack of object safety on affected traits.](https://github.com/rust-lang/rust/pull/113241/)
+- [Hide `#[repr(transparent)]` if it isn't part of the public ABI.](https://github.com/rust-lang/rust/pull/115439/)
+- [Show enum discrimant if it is a C-like variant.](https://github.com/rust-lang/rust/pull/116142/)
+
+<a id="1.75.0-Compatibility-Notes"></a>
+
+Compatibility Notes
+-------------------
+
+- [FreeBSD targets now require at least version 12.](https://github.com/rust-lang/rust/pull/114521/)
+- [Formally demote tier 2 MIPS targets to tier 3.](https://github.com/rust-lang/rust/pull/115238/)
+- [Make misalignment a hard error in `const` contexts.](https://github.com/rust-lang/rust/pull/115524/)
+- [Fix detecting references to packed unsized fields.](https://github.com/rust-lang/rust/pull/115583/)
+- [Remove support for compiler plugins.](https://github.com/rust-lang/rust/pull/116412/)
+
+<a id="1.75.0-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.
+
+- [Optimize `librustc_driver.so` with BOLT.](https://github.com/rust-lang/rust/pull/116352/)
+- [Enable parallel rustc front end in dev and nightly builds.](https://github.com/rust-lang/rust/pull/117435/)
+- [Distribute `rustc-codegen-cratelift` as rustup component on the nightly channel.](https://github.com/rust-lang/rust/pull/81746/)
+
 Version 1.74.1 (2023-12-07)
 ===========================