From edd647e141d76152e00c133766b4cf239533856e Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Fri, 20 Jan 2023 18:29:35 -0800 Subject: [PATCH] Release notes for 1.67.0 --- RELEASES.md | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/RELEASES.md b/RELEASES.md index 2901bfcc3e3..79c49e9d790 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,101 @@ +Version 1.67 (2023-01-26) +========================== + + + +Language +-------- + +- [Make `Sized` predicates coinductive, allowing cycles.](https://github.com/rust-lang/rust/pull/100386/) +- [`#[must_use]` annotations on `async fn` also affect the `Future::Output`.](https://github.com/rust-lang/rust/pull/100633/) +- [Elaborate supertrait obligations when deducing closure signatures.](https://github.com/rust-lang/rust/pull/101834/) +- [Invalid literals are no longer an error under `cfg(FALSE)`.](https://github.com/rust-lang/rust/pull/102944/) +- [Unreserve braced enum variants in value namespace.](https://github.com/rust-lang/rust/pull/103578/) + + + +Compiler +-------- + +- [Enable varargs support for calling conventions other than `C` or `cdecl`.](https://github.com/rust-lang/rust/pull/97971/) +- [Add new MIR constant propagation based on dataflow analysis.](https://github.com/rust-lang/rust/pull/101168/) +- [Optimize field ordering by grouping m\*2^n-sized fields with equivalently aligned ones.](https://github.com/rust-lang/rust/pull/102750/) +- [Stabilize native library modifier `verbatim`.](https://github.com/rust-lang/rust/pull/104360/) + +Added and removed targets: + +- [Add a tier 3 target for PowerPC on AIX](https://github.com/rust-lang/rust/pull/102293/), `powerpc64-ibm-aix`. +- [Add a tier 3 target for the Sony PlayStation 1](https://github.com/rust-lang/rust/pull/102689/), `mipsel-sony-psx`. +- [Add tier 3 `no_std` targets for the QNX Neutrino RTOS](https://github.com/rust-lang/rust/pull/102701/), + `aarch64-unknown-nto-qnx710` and `x86_64-pc-nto-qnx710`. +- [Remove tier 3 `linuxkernel` targets](https://github.com/rust-lang/rust/pull/104015/) (not used by the actual kernel). + +Refer to Rust's [platform support page][platform-support-doc] +for more information on Rust's tiered platform support. + + + +Libraries +--------- + +- [Merge `crossbeam-channel` into `std::sync::mpsc`.](https://github.com/rust-lang/rust/pull/93563/) +- [Fix inconsistent rounding of 0.5 when formatted to 0 decimal places.](https://github.com/rust-lang/rust/pull/102935/) +- [Derive `Eq` and `Hash` for `ControlFlow`.](https://github.com/rust-lang/rust/pull/103084/) +- [Don't build `compiler_builtins` with `-C panic=abort`.](https://github.com/rust-lang/rust/pull/103786/) + + + +Stabilized APIs +--------------- + +- [`{integer}::checked_ilog`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog) +- [`{integer}::checked_ilog2`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog2) +- [`{integer}::checked_ilog10`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog10) +- [`{integer}::ilog`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog) +- [`{integer}::ilog2`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog2) +- [`{integer}::ilog10`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog10) +- [`NonZeroU*::ilog2`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#method.ilog2) +- [`NonZeroU*::ilog10`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#method.ilog10) +- [`NonZero*::BITS`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#associatedconstant.BITS) + +These APIs are now stable in const contexts: + +- [`char::from_u32`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.from_u32) +- [`char::from_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.from_digit) +- [`char::to_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.to_digit) +- [`core::char::from_u32`](https://doc.rust-lang.org/stable/core/char/fn.from_u32.html) +- [`core::char::from_digit`](https://doc.rust-lang.org/stable/core/char/fn.from_digit.html) + + + +Compatibility Notes +------------------- + +- [Chains of `&&` and `||` will now drop temporaries from their sub-expressions in + evaluation order, left-to-right.](https://github.com/rust-lang/rust/pull/103293/) + Previously, it was "twisted" such that the _first_ expression dropped its + temporaries _last_, after all of the other expressions dropped in order. +- [Proc-macro derives using inaccessible names from parent modules is now a hard error.](https://github.com/rust-lang/rust/pull/84022/) + This has been a warning since 1.29.0, and denied by default since 1.58.0. + (**TODO**: revert proposed in ) +- [Underscore suffixes on string literals are now a hard error.](https://github.com/rust-lang/rust/pull/103914/) + This has been a future-compatibility warning since 1.20.0. +- [Stop passing `-export-dynamic` to `wasm-ld`.](https://github.com/rust-lang/rust/pull/105405/) +- [`main` is now mangled as `__main_void` on `wasm32-wasi`.](https://github.com/rust-lang/rust/pull/105468/) +- [Cargo now emits an error if there are multiple registries in the configuration + with the same index URL.](https://github.com/rust-lang/cargo/pull/10592) + + + +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. + +- [Rewrite LLVM's archive writer in Rust.](https://github.com/rust-lang/rust/pull/97485/) + Version 1.66.1 (2023-01-10) ===========================