diff --git a/RELEASES.md b/RELEASES.md index 3bd638ff64c..104ea497ba4 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,123 @@ +Version 1.78.0 (2024-05-02) +========================== + + + +Language +-------- +- [Stabilize `#[cfg(target_abi = ...)]`](https://github.com/rust-lang/rust/pull/119590/) +- [Stabilize the `#[diagnostic]` namespace and `#[diagnostic::on_unimplemented]` attribute](https://github.com/rust-lang/rust/pull/119888/) +- [Make async-fn-in-trait implementable with concrete signatures](https://github.com/rust-lang/rust/pull/120103/) +- [Make matching on NaN a hard error, and remove the rest of `illegal_floating_point_literal_pattern`](https://github.com/rust-lang/rust/pull/116284/) +- [static mut: allow mutable reference to arbitrary types, not just slices and arrays](https://github.com/rust-lang/rust/pull/117614/) +- [Extend `invalid_reference_casting` to include references casting to bigger memory layout](https://github.com/rust-lang/rust/pull/118983/) +- [Add `non_contiguous_range_endpoints` lint for singleton gaps after exclusive ranges](https://github.com/rust-lang/rust/pull/118879/) +- [Add `wasm_c_abi` lint for use of older wasm-bindgen versions](https://github.com/rust-lang/rust/pull/117918/) + This lint currently only works when using Cargo. +- [Update `indirect_structural_match` and `pointer_structural_match` lints to match RFC](https://github.com/rust-lang/rust/pull/120423/) +- [Make non-`PartialEq`-typed consts as patterns a hard error](https://github.com/rust-lang/rust/pull/120805/) +- [Split `refining_impl_trait` lint into `_reachable`, `_internal` variants](https://github.com/rust-lang/rust/pull/121720/) +- [Remove unnecessary type inference when using associated types inside of higher ranked `where`-bounds](https://github.com/rust-lang/rust/pull/119849) +- [Weaken eager detection of cyclic types during type inference](https://github.com/rust-lang/rust/pull/119989) +- [`trait Trait: Auto {}`: allow upcasting from `dyn Trait` to `dyn Auto`](https://github.com/rust-lang/rust/pull/119338) + + + +Compiler +-------- + +- [Made `INVALID_DOC_ATTRIBUTES` lint deny by default](https://github.com/rust-lang/rust/pull/111505/) +- [Increase accuracy of redundant `use` checking](https://github.com/rust-lang/rust/pull/117772/) +- [Suggest moving definition if non-found macro_rules! is defined later](https://github.com/rust-lang/rust/pull/121130/) +- [Lower transmutes from int to pointer type as gep on null](https://github.com/rust-lang/rust/pull/121282/) + +Target changes: + +- [Windows tier 1 targets now require at least Windows 10](https://github.com/rust-lang/rust/pull/115141/) + - [Enable CMPXCHG16B, SSE3, SAHF/LAHF and 128-bit Atomics in tier 1 Windows](https://github.com/rust-lang/rust/pull/120820/) +- [Add `wasm32-wasip1` tier 2 (without host tools) target](https://github.com/rust-lang/rust/pull/120468/) +- [Add `wasm32-wasip2` tier 3 target](https://github.com/rust-lang/rust/pull/119616/) +- [Rename `wasm32-wasi-preview1-threads` to `wasm32-wasip1-threads`](https://github.com/rust-lang/rust/pull/122170/) +- [Add `arm64ec-pc-windows-msvc` tier 3 target](https://github.com/rust-lang/rust/pull/119199/) +- [Add `armv8r-none-eabihf` tier 3 target for the Cortex-R52](https://github.com/rust-lang/rust/pull/110482/) +- [Add `loongarch64-unknown-linux-musl` tier 3 target](https://github.com/rust-lang/rust/pull/121832/) + +Refer to Rust's [platform support page][platform-support-doc] +for more information on Rust's tiered platform support. + + + +Libraries +--------- + +- [Bump Unicode to version 15.1.0, regenerate tables](https://github.com/rust-lang/rust/pull/120777/) +- [Make align_offset, align_to well-behaved in all cases](https://github.com/rust-lang/rust/pull/121201/) +- [PartialEq, PartialOrd: document expectations for transitive chains](https://github.com/rust-lang/rust/pull/115386/) +- [Optimize away poison guards when std is built with panic=abort](https://github.com/rust-lang/rust/pull/100603/) +- [Replace pthread `RwLock` with custom implementation](https://github.com/rust-lang/rust/pull/110211/) +- [Implement unwind safety for Condvar on all platforms](https://github.com/rust-lang/rust/pull/121768/) +- [Add ASCII fast-path for `char::is_grapheme_extended`](https://github.com/rust-lang/rust/pull/121138/) + + + +Stabilized APIs +--------------- + +- [`impl Read for &Stdin`](https://doc.rust-lang.org/stable/std/io/struct.Stdin.html#impl-Read-for-%26Stdin) +- [Accept non `'static` lifetimes for several `std::error::Error` related implementations](https://github.com/rust-lang/rust/pull/113833/) +- [Make `impl` impl take `?Sized`](https://github.com/rust-lang/rust/pull/114655/) +- [`impl From for io::Error`](https://doc.rust-lang.org/stable/std/io/struct.Error.html#impl-From%3CTryReserveError%3E-for-Error) + +These APIs are now stable in const contexts: + +- [`Barrier::new()`](https://doc.rust-lang.org/stable/std/sync/struct.Barrier.html#method.new) + + + +Cargo +----- + +- [Stabilize lockfile v4](https://github.com/rust-lang/cargo/pull/12852/) +- [Respect `rust-version` when generating lockfile](https://github.com/rust-lang/cargo/pull/12861/) +- [Control `--charset` via auto-detecting config value](https://github.com/rust-lang/cargo/pull/13337/) +- [Support `target..rustdocflags` officially](https://github.com/rust-lang/cargo/pull/13197/) +- [Stabilize global cache data tracking](https://github.com/rust-lang/cargo/pull/13492/) + + + +Misc +---- + +- [rustdoc: add `--test-builder-wrapper` arg to support wrappers such as RUSTC_WRAPPER when building doctests](https://github.com/rust-lang/rust/pull/114651/) + + + +Compatibility Notes +------------------- + +- [Many unsafe precondition checks now run for user code with debug assertions enabled](https://github.com/rust-lang/rust/pull/120594/) + This change helps users catch undefined behavior in their code, though the details of how much is checked are generally not stable. +- [riscv only supports split_debuginfo=off for now](https://github.com/rust-lang/rust/pull/120518/) +- [Consistently check bounds on hidden types of `impl Trait`](https://github.com/rust-lang/rust/pull/121679) +- [Change equality of higher ranked types to not rely on subtyping](https://github.com/rust-lang/rust/pull/118247) +- [When called, additionally check bounds on normalized function return type](https://github.com/rust-lang/rust/pull/118882) +- [Expand coverage for `arithmetic_overflow` lint](https://github.com/rust-lang/rust/pull/119432/) + + + +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. + +- [Update to LLVM 18](https://github.com/rust-lang/rust/pull/120055/) +- [Build `rustc` with 1CGU on `x86_64-pc-windows-msvc`](https://github.com/rust-lang/rust/pull/112267/) +- [Build `rustc` with 1CGU on `x86_64-apple-darwin`](https://github.com/rust-lang/rust/pull/112268/) +- [Introduce `run-make` V2 infrastructure, a `run_make_support` library and port over 2 tests as example](https://github.com/rust-lang/rust/pull/113026/) +- [Windows: Implement condvar, mutex and rwlock using futex](https://github.com/rust-lang/rust/pull/121956/) + Version 1.77.2 (2024-04-09) ===========================