X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=RELEASES.md;h=0e118fb939ff00f1927ff3c79f60eda944c0ef64;hb=bb02cc47c49ee3cc1e913c243d69ee7cb23df598;hp=61264b1e1d1b7233ed31104582a310685b0d4ccf;hpb=80e2957c60b4d148575b0d2ab94cbfe3f7ebbef6;p=rust.git diff --git a/RELEASES.md b/RELEASES.md index 61264b1e1d1..0e118fb939f 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -13,19 +13,16 @@ Compiler -------- - [Linking modifier syntax in `#[link]` attributes and on the command line, as well as the `whole-archive` modifier specifically, are now supported][93901] -- [Update to LLVM 14.0.0][95247] - [The `char` type is now described as UTF-32 in debuginfo][89887] - The [`#[target_feature]`][target_feature] attribute [can now be used with aarch64 features][90621] - X86 [`#[target_feature = "adx"]` is now stable][93745] -- [Catching a second unwind from FFI code while cleaning up from a Rust panic now causes the process to abort][92911] Libraries --------- - [`ManuallyDrop` is now documented to have the same layout as `T`][88375] -- [Windows paths longer than 260 chars are now supported in `process::Command` without needing explicit canonicalization][92519] - [`#[ignore = "…"]` messages are printed when running tests][92714] -- [Consistently present absent stdio handles on Windows as NULL handles][93263] +- [Consistently show absent stdio handles on Windows as NULL handles][93263] - [Make `std::io::stdio::lock()` return `'static` handles.][93965] Previously, the creation of locked handles to stdin/stdout/stderr would borrow the handles being locked, which prevented writing `let out = std::io::stdout().lock();` because `out` would outlive the return value of `stdout()`. Such code now works, eliminating a common pitfall that affected many Rust users. - [`Vec::from_raw_parts` is now less restrictive about its inputs][95016] - [`std::thread::available_parallelism` now takes cgroup quotas into account.][92697] Since `available_parallelism` is often used to create a thread pool for parallel computation, which may be CPU-bound for performance, `available_parallelism` will return a value consistent with the ability to use that many threads continuously, if possible. For instance, in a container with 8 virtual CPUs but quotas only allowing for 50% usage, `available_parallelism` will return 4. @@ -33,28 +30,26 @@ Libraries Stabilized APIs --------------- -- [`From<&[T; N]>` for `Vec`][95098] -- [`From<&mut [T; N]>` for `Vec`][95098] -- [`Pin::static_mut`][93580] -- [`Pin::static_ref`][93580] -- [`Vec::retain_mut`][95491] -- [`VecDeque::retain_mut`][95491] -- [`Write` for `Cursor<[u8; N]>`][92663] -- [`std::os::unix::net::SocketAddr::from_pathname`][94356] -- [`std::process::ExitCode`][93840] and [`std::process::Termination`][93840]. The stabilization of these two APIs now makes it possible for programs to return errors from `main` with custom exit codes. -- [`std::thread::JoinHandle::is_finished`][95130] +- [`Pin::static_mut`] +- [`Pin::static_ref`] +- [`Vec::retain_mut`] +- [`VecDeque::retain_mut`] +- [`Write` for `Cursor<[u8; N]>`][cursor-write-array] +- [`std::os::unix::net::SocketAddr::from_pathname`] +- [`std::process::ExitCode`] and [`std::process::Termination`]. The stabilization of these two APIs now makes it possible for programs to return errors from `main` with custom exit codes. +- [`std::thread::JoinHandle::is_finished`] These APIs are now usable in const contexts: -- [`*const T::offset` and `*mut T::offset`][93957] -- [`*const T::wrapping_offset` and `*mut T::wrapping_offset`][93957] -- [`*const T::add` and `*mut T::add`][93957] -- [`*const T::sub` and `*mut T::sub`][93957] -- [`*const T::wrapping_add` and `*mut T::wrapping_add`][93957] -- [`*const T::wrapping_sub` and `*mut T::wrapping_sub`][93957] -- [`[T]::as_mut_ptr`][93957] -- [`[T]::as_ptr_range`][93957] -- [`[T]::as_mut_ptr_range`][93957] +- [`<*const T>::offset` and `<*mut T>::offset`][ptr-offset] +- [`<*const T>::wrapping_offset` and `<*mut T>::wrapping_offset`][ptr-wrapping_offset] +- [`<*const T>::add` and `<*mut T>::add`][ptr-add] +- [`<*const T>::sub` and `<*mut T>::sub`][ptr-sub] +- [`<*const T>::wrapping_add` and `<*mut T>::wrapping_add`][ptr-wrapping_add] +- [`<*const T>::wrapping_sub` and `<*mut T>::wrapping_sub`][ptr-wrapping_sub] +- [`<[T]>::as_mut_ptr`][slice-as_mut_ptr] +- [`<[T]>::as_ptr_range`][slice-as_ptr_range] +- [`<[T]>::as_mut_ptr_range`][slice-as_mut_ptr_range] Cargo ----- @@ -64,7 +59,10 @@ No feature changes, but see compatibility notes. Compatibility Notes ------------------- -- [Disable `#[thread_local]` support on i686-pc-windows-msvc][95430] +- Previously native static libraries were linked as `whole-archive` in some cases, but now rustc tries not to use `whole-archive` unless explicitly requested. This [change][93901] may result in linking errors in some cases. To fix such errors, native libraries linked from the command line, build scripts, or [`#[link]` attributes][link-attr] need to + - (more common) either be reordered to respect dependencies between them (if `a` depends on `b` then `a` should go first and `b` second) + - (less common) or be updated to use the [`+whole-archive`] modifier. +- [Catching a second unwind from FFI code while cleaning up from a Rust panic now causes the process to abort][92911] - [Proc macros no longer see `ident` matchers wrapped in groups][92472] - [The number of `#` in `r#` raw string literals is now required to be less than 256][95251] - [When checking that a dyn type satisfies a trait bound, supertrait bounds are now enforced][92285] @@ -87,33 +85,42 @@ and related tools. [90621]: https://github.com/rust-lang/rust/pull/90621/ [92285]: https://github.com/rust-lang/rust/pull/92285/ [92472]: https://github.com/rust-lang/rust/pull/92472/ -[92519]: https://github.com/rust-lang/rust/pull/92519/ -[92663]: https://github.com/rust-lang/rust/pull/92663/ [92697]: https://github.com/rust-lang/rust/pull/92697/ [92714]: https://github.com/rust-lang/rust/pull/92714/ [92911]: https://github.com/rust-lang/rust/pull/92911/ [93263]: https://github.com/rust-lang/rust/pull/93263/ -[93580]: https://github.com/rust-lang/rust/pull/93580/ [93745]: https://github.com/rust-lang/rust/pull/93745/ [93827]: https://github.com/rust-lang/rust/pull/93827/ -[93840]: https://github.com/rust-lang/rust/pull/93840/ [93901]: https://github.com/rust-lang/rust/pull/93901/ [93913]: https://github.com/rust-lang/rust/pull/93913/ -[93957]: https://github.com/rust-lang/rust/pull/93957/ [93965]: https://github.com/rust-lang/rust/pull/93965/ [94081]: https://github.com/rust-lang/rust/pull/94081/ [94261]: https://github.com/rust-lang/rust/pull/94261/ [94295]: https://github.com/rust-lang/rust/pull/94295/ -[94356]: https://github.com/rust-lang/rust/pull/94356/ [94832]: https://github.com/rust-lang/rust/pull/94832/ [95016]: https://github.com/rust-lang/rust/pull/95016/ -[95098]: https://github.com/rust-lang/rust/pull/95098/ -[95130]: https://github.com/rust-lang/rust/pull/95130/ -[95247]: https://github.com/rust-lang/rust/pull/95247/ [95251]: https://github.com/rust-lang/rust/pull/95251/ -[95430]: https://github.com/rust-lang/rust/pull/95430/ -[95491]: https://github.com/rust-lang/rust/pull/95491/ +[`+whole-archive`]: https://doc.rust-lang.org/stable/rustc/command-line-arguments.html#linking-modifiers-whole-archive +[`Pin::static_mut`]: https://doc.rust-lang.org/stable/std/pin/struct.Pin.html#method.static_mut +[`Pin::static_ref`]: https://doc.rust-lang.org/stable/std/pin/struct.Pin.html#method.static_ref +[`Vec::retain_mut`]: https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#method.retain_mut +[`VecDeque::retain_mut`]: https://doc.rust-lang.org/stable/std/collections/struct.VecDeque.html#method.retain_mut +[`std::os::unix::net::SocketAddr::from_pathname`]: https://doc.rust-lang.org/stable/std/os/unix/net/struct.SocketAddr.html#method.from_pathname +[`std::process::ExitCode`]: https://doc.rust-lang.org/stable/std/process/struct.ExitCode.html +[`std::process::Termination`]: https://doc.rust-lang.org/stable/std/process/trait.Termination.html +[`std::thread::JoinHandle::is_finished`]: https://doc.rust-lang.org/stable/std/thread/struct.JoinHandle.html#method.is_finished [cargo/10448]: https://github.com/rust-lang/cargo/pull/10448/ +[cursor-write-array]: https://doc.rust-lang.org/stable/std/io/struct.Cursor.html#impl-Write-4 +[link-attr]: https://doc.rust-lang.org/stable/reference/items/external-blocks.html#the-link-attribute +[ptr-add]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.add +[ptr-offset]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.offset +[ptr-sub]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.sub +[ptr-wrapping_add]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.wrapping_add +[ptr-wrapping_offset]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.wrapping_offset +[ptr-wrapping_sub]: https://doc.rust-lang.org/stable/std/primitive.pointer.html#method.wrapping_sub +[slice-as_mut_ptr]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_mut_ptr +[slice-as_mut_ptr_range]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_mut_ptr_range +[slice-as_ptr_range]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.as_ptr_range [target_feature]: https://doc.rust-lang.org/reference/attributes/codegen.html#the-target_feature-attribute