From d2241e3635b2ba2b0d46e2caa392170c1539b3c8 Mon Sep 17 00:00:00 2001 From: Erin Power Date: Fri, 21 May 2021 12:27:43 +0200 Subject: [PATCH] Update RELEASES.md for 1.53.0 --- RELEASES.md | 184 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) diff --git a/RELEASES.md b/RELEASES.md index 60b3359c1b6..977b7f34f37 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,187 @@ +Version 1.53.0 (2021-06-17) +============================ + +Language +----------------------- +- [You can now use unicode for identifiers.][83799] This allows multilingual + identifiers but still doesn't allow glyphs that not considered characters + such as `◆` or `🦀`. More specifically you can now use any identifier that + matches the UAX #31 "Unicode Identifier and Pattern Syntax" standard. This + is the same standard as languages like Python, however Rust uses NFC + normalisation which may be different from other languages. +- [You can now specify "or patterns" inside pattern matches.][79278] + Previously you could only use `|` (OR) on complete patterns. E.g. + ```rust + let x = Some(2u8); + // Before + matches!(x, Some(1) | Some(2)); + // Now + matches!(x, Some(1 | 2)); + ``` +- [Added the `:pat_param` `macro_rules!` matcher.][83386] This matcher + has the same semantics as the `:pat` matcher. This is to allow `:pat` + to change semantics to being a pattern fragment in a future edition. + +Compiler +----------------------- +- [Updated to build with LLVM 12 by , and enabled `mutable-noalias` when + built LLVM 12 or greater.][82834] +- [Updated the minimum external LLVM version to LLVM 10.][83387] +- [Added Tier 3\* support for the `wasm64-unknown-unknown` target.][80525] +- [Improved debuginfo for closures and async functions on Windows MSVC.][83941] + +Libraries +----------------------- +- [Abort messages will now forward to `android_set_abort_message` on + Android platforms when available.][81469] +- [`slice::IterMut<'_, T>` now implements `AsRef<[T]>`][82771] +- [Arrays of any length now implement `IntoIterator`.][84147] + Currently `.into_iter()` will return `slice::Iter` (`Item=&T`), but + this may change in a future edition to return `Item=T`. +- [`NonZero::{leading_zeros, trailing_zeros}` is now `const`.][84082] +- [`{f32, f64}::from_str` now parse and print special values + (`NaN`, `-0`) according to IEEE RFC 754.][78618] +- [You can now index into slices using `(Bound, Bound)`.][77704] +- [Add the `BITS` associated constant to all numeric types.][82565] + +Stabilised APIs +--------------- +- [`AtomicBool::fetch_update`] +- [`AtomicPtr::fetch_update`] +- [`BTreeMap::retain`] +- [`BTreeSet::retain`] +- [`BufReader::seek_relative`] +- [`DebugStruct::non_exhaustive`] +- [`Duration::MAX`] +- [`Duration::ZERO`] +- [`Duration::is_zero`] +- [`Duration::saturating_add`] +- [`Duration::saturating_mul`] +- [`Duration::saturating_sub`] +- [`ErrorKind::Unsupported`] +- [`Option::insert`] +- [`Ordering::is_eq`] +- [`Ordering::is_ge`] +- [`Ordering::is_gt`] +- [`Ordering::is_le`] +- [`Ordering::is_lt`] +- [`Ordering::is_ne`] +- [`OsStr::is_ascii`] +- [`OsStr::make_ascii_lowercase`] +- [`OsStr::make_ascii_uppercase`] +- [`OsStr::to_ascii_lowercase`] +- [`OsStr::to_ascii_uppercase`] +- [`Peekable::peek_mut`] +- [`Rc::decrement_strong_count`] +- [`Rc::increment_strong_count`] +- [`Vec::extend_from_within`] +- [`array::from_mut`] +- [`array::from_ref`] +- [`char::MAX`] +- [`char::REPLACEMENT_CHARACTER`] +- [`char::UNICODE_VERSION`] +- [`char::decode_utf16`] +- [`char::from_digit`] +- [`char::from_u32_unchecked`] +- [`char::from_u32`] +- [`cmp::max_by_key`] +- [`cmp::max_by`] +- [`cmp::min_by_key`] +- [`cmp::min_by`] +- [`f32::is_subnormal`] +- [`f64::is_subnormal`] + +Cargo +----------------------- +- [Expose build.target .cargo/config setting as packages.target in Cargo.toml][cargo/9030] + +Rustdoc +----------------------- +- [Added the `rustdoc::bare_urls` lint that warns when you have URLs + without hyperlinks.][81764] + +Compatibility Notes +------------------- +- [Implement token-based handling of attributes during expansion][82608] +- [`Ipv4::from_str` will now reject octal format IP addresses.][83652] The octal format + can lead confusion and potential security vulnerablities and is no longer recommended. + +Internal Only +------------- +- [Rework the `std::sys::windows::alloc` implementation.][83065] +- [rustdoc: Don't enter an infer_ctxt in get_blanket_impls for impls that aren't blanket impls.][82864] +- [rustdoc: Only look at blanket impls in `get_blanket_impls`][83681] +- [Rework rustdoc const type][82873] + +[83386]: https://github.com/rust-lang/rust/pull/83386 +[82771]: https://github.com/rust-lang/rust/pull/82771 +[84147]: https://github.com/rust-lang/rust/pull/84147 +[84082]: https://github.com/rust-lang/rust/pull/84082 +[83799]: https://github.com/rust-lang/rust/pull/83799 +[83681]: https://github.com/rust-lang/rust/pull/83681 +[83652]: https://github.com/rust-lang/rust/pull/83652 +[83387]: https://github.com/rust-lang/rust/pull/83387 +[82873]: https://github.com/rust-lang/rust/pull/82873 +[82864]: https://github.com/rust-lang/rust/pull/82864 +[82608]: https://github.com/rust-lang/rust/pull/82608 +[82565]: https://github.com/rust-lang/rust/pull/82565 +[80525]: https://github.com/rust-lang/rust/pull/80525 +[79278]: https://github.com/rust-lang/rust/pull/79278 +[78618]: https://github.com/rust-lang/rust/pull/78618 +[77704]: https://github.com/rust-lang/rust/pull/77704 +[83941]: https://github.com/rust-lang/rust/pull/83941 +[83065]: https://github.com/rust-lang/rust/pull/83065 +[82834]: https://github.com/rust-lang/rust/pull/82834 +[81764]: https://github.com/rust-lang/rust/pull/81764 +[81469]: https://github.com/rust-lang/rust/pull/81469 +[cargo/9030]: https://github.com/rust-lang/cargo/pull/9030 +[`char::MAX`]: https://doc.rust-lang.org/std/primitive.char.html#associatedconstant.MAX +[`char::REPLACEMENT_CHARACTER`]: https://doc.rust-lang.org/std/primitive.char.html#associatedconstant.REPLACEMENT_CHARACTER +[`char::UNICODE_VERSION`]: https://doc.rust-lang.org/std/primitive.char.html#associatedconstant.UNICODE_VERSION +[`char::decode_utf16`]: https://doc.rust-lang.org/std/primitive.char.html#method.decode_utf16 +[`char::from_u32`]: https://doc.rust-lang.org/std/primitive.char.html#method.from_u32 +[`char::from_u32_unchecked`]: https://doc.rust-lang.org/std/primitive.char.html#method.from_u32_unchecked +[`char::from_digit`]: https://doc.rust-lang.org/std/primitive.char.html#method.from_digit +[`AtomicBool::fetch_update`]: https://doc.rust-lang.org/std/sync/atomic/struct.AtomicBool.html#method.fetch_update +[`AtomicPtr::fetch_update`]: https://doc.rust-lang.org/std/sync/atomic/struct.AtomicPtr.html#method.fetch_update +[`BTreeMap::retain`]: https://doc.rust-lang.org/std/collections/struct.BTreeMap.html#method.retain +[`BTreeSet::retain`]: https://doc.rust-lang.org/std/collections/struct.BTreeSet.html#method.retain +[`BufReader::seek_relative`]: https://doc.rust-lang.org/std/io/struct.BufReader.html#method.seek_relative +[`DebugStruct::non_exhaustive`]: https://doc.rust-lang.org/std/fmt/struct.DebugStruct.html#method.finish_non_exhaustive +[`Duration::MAX`]: https://doc.rust-lang.org/std/time/struct.Duration.html#associatedconstant.MAX +[`Duration::ZERO`]: https://doc.rust-lang.org/std/time/struct.Duration.html#associatedconstant.ZERO +[`Duration::is_zero`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.is_zero +[`Duration::saturating_add`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.saturating_add +[`Duration::saturating_mul`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.saturating_mul +[`Duration::saturating_sub`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.saturating_sub +[`ErrorKind::Unsupported`]: https://doc.rust-lang.org/std/io/enum.ErrorKind.html#variant.Unsupported +[`Option::insert`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.insert +[`Ordering::is_eq`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_eq +[`Ordering::is_ge`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_ge +[`Ordering::is_gt`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_gt +[`Ordering::is_le`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_le +[`Ordering::is_lt`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_lt +[`Ordering::is_ne`]: https://doc.rust-lang.org/std/cmp/enum.Ordering.html#method.is_ne +[`OsStr::eq_ignore_ascii_case`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.eq_ignore_ascii_case +[`OsStr::is_ascii`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.is_ascii +[`OsStr::make_ascii_lowercase`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.make_ascii_lowercase +[`OsStr::make_ascii_uppercase`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.make_ascii_uppercase +[`OsStr::to_ascii_lowercase`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.to_ascii_lowercase +[`OsStr::to_ascii_uppercase`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.to_ascii_uppercase +[`Peekable::peek_mut`]: https://doc.rust-lang.org/std/iter/struct.Peekable.html#method.peek_mut +[`Rc::decrement_strong_count`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.increment_strong_count +[`Rc::increment_strong_count`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.increment_strong_count +[`Vec::extend_from_within`]: https://doc.rust-lang.org/beta/std/vec/struct.Vec.html#method.extend_from_within +[`array::from_mut`]: https://doc.rust-lang.org/beta/std/array/fn.from_mut.html +[`array::from_ref`]: https://doc.rust-lang.org/beta/std/array/fn.from_ref.html +[`cmp::max_by_key`]: https://doc.rust-lang.org/beta/std/cmp/fn.max_by_key.html +[`cmp::max_by`]: https://doc.rust-lang.org/beta/std/cmp/fn.max_by.html +[`cmp::min_by_key`]: https://doc.rust-lang.org/beta/std/cmp/fn.min_by_key.html +[`cmp::min_by`]: https://doc.rust-lang.org/beta/std/cmp/fn.min_by.html +[`f32::is_subnormal`]: https://doc.rust-lang.org/f32.html#method.is_subnormal +[`f64::is_subnormal`]: https://doc.rust-lang.org/f64.html#method.is_subnormal + + Version 1.52.1 (2021-05-10) ============================