From b4bfb0e30ec496d80a5cb8569e979f69eb04b18e Mon Sep 17 00:00:00 2001 From: Erin Power Date: Wed, 14 Apr 2021 11:34:20 +0200 Subject: [PATCH] Update RELEASES.md for 1.52.0 --- RELEASES.md | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) diff --git a/RELEASES.md b/RELEASES.md index 024610bc7a417..1f940e6bc2d3b 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,151 @@ +Version 1.52.0 (2021-05-06) +============================ + +Language +-------- +- [Added the `unsafe_op_in_unsafe_fn` lint, which checks whether the unsafe code + in an `unsafe fn` is wrapped in a `unsafe` block.][79208] This lint + is allowed by default, and may become a warning or hard error in a + future edition. +- [You can now cast mutable references to arrays to a pointer of the same type as + the element.][81479] + +Compiler +-------- +- [Upgraded the default LLVM to LLVM 12.][81451] + +Added tier 3\* support for the following targets. + +- [`s390x-unknown-linux-musl`][82166] +- [`riscv32gc-unknown-linux-musl` & `riscv64gc-unknown-linux-musl`][82202] +- [`powerpc-unknown-openbsd`][82733] + +\* Refer to Rust's [platform support page][platform-support-doc] for more +information on Rust's tiered platform support. + +Libraries +--------- +- [`OsString` now implements `Extend` and `FromIterator`.][82121] +- [`cmp::Reverse` now has `#[repr(transparent)]` representation.][81879] +- [`Arc` now implements `error::Error`.][80553] +- [All integer division and remainder operations are now `const`.][80962] + +Stabilised APIs +------------- +- [`Arguments::as_str`] +- [`char::MAX`] +- [`char::REPLACEMENT_CHARACTER`] +- [`char::UNICODE_VERSION`] +- [`char::decode_utf16`] +- [`char::from_digit`] +- [`char::from_u32_unchecked`] +- [`char::from_u32`] +- [`slice::partition_point`] +- [`str::rsplit_once`] +- [`str::split_once`] + +The following previously stable APIs are now `const`. + +- [`char::len_utf8`] +- [`char::len_utf16`] +- [`char::to_ascii_uppercase`] +- [`char::to_ascii_lowercase`] +- [`char::eq_ignore_ascii_case`] +- [`u8::to_ascii_uppercase`] +- [`u8::to_ascii_lowercase`] +- [`u8::eq_ignore_ascii_case`] + +Rustdoc +------- +- [Rustdoc lints are now treated as a tool lint, meaning that + lints are now prefixed with `rustdoc::` (e.g. `#[warn(rustdoc::non_autolinks)]`).][80527] + Using the old style is still allowed, and will become a warning in + a future release. +- [Rustdoc now supports argument files.][82261] +- [Rustdoc now generates smart punctuation for documentation.][79423] +- [You can now use "task lists" in Rustdoc Markdown.][81766] E.g. + ```markdown + - [x] Complete + - [ ] Todo + ``` + +Misc +---- +- [You can now pass multiple filters to tests.][81356] E.g. + `cargo test -- foo bar` will run all tests that match `foo` and `bar`. +- [Rustup now distributes PDB symbols for the `std` library on Windows, + allowing you to see `std` symbols when debugging.][82218] + +Internal Only +------------- +These changes provide no direct user facing benefits, but represent significant +improvements to the internals and overall performance of rustc and +related tools. + +- [Check the result cache before the DepGraph when ensuring queries][81855] +- [Try fast_reject::simplify_type in coherence before doing full check][81744] +- [Only store a LocalDefId in some HIR nodes][81611] +- [Store HIR attributes in a side table][79519] + +Compatibility Notes +------------------- +- [Cargo build scripts are now forbidden from setting `RUSTC_BOOTSTRAP`.][cargo/9181] +- [Removed support for the `x86_64-rumprun-netbsd` target.][82594] +- [Deprecated the `x86_64-sun-solaris` target in favor of `x86_64-pc-solaris`.][82216] +- [Rustdoc now only accepts `,`, ` `, and `\t` as delimiters for specifying + languages in code blocks.][78429] +- [Rustc now catches more cases of `pub_use_of_private_extern_crate`][80763] +- [Changes in how proc macros handle whitespace may lead to panics when used + with older `proc-macro-hack` versions. A `cargo update` should be sufficient to fix this in all cases.][84136] + +[84136]: https://github.com/rust-lang/rust/issues/84136 +[80763]: https://github.com/rust-lang/rust/pull/80763 +[82166]: https://github.com/rust-lang/rust/pull/82166 +[82121]: https://github.com/rust-lang/rust/pull/82121 +[81879]: https://github.com/rust-lang/rust/pull/81879 +[82261]: https://github.com/rust-lang/rust/pull/82261 +[82218]: https://github.com/rust-lang/rust/pull/82218 +[82216]: https://github.com/rust-lang/rust/pull/82216 +[82202]: https://github.com/rust-lang/rust/pull/82202 +[81855]: https://github.com/rust-lang/rust/pull/81855 +[81766]: https://github.com/rust-lang/rust/pull/81766 +[81744]: https://github.com/rust-lang/rust/pull/81744 +[81611]: https://github.com/rust-lang/rust/pull/81611 +[81479]: https://github.com/rust-lang/rust/pull/81479 +[81451]: https://github.com/rust-lang/rust/pull/81451 +[81356]: https://github.com/rust-lang/rust/pull/81356 +[80962]: https://github.com/rust-lang/rust/pull/80962 +[80553]: https://github.com/rust-lang/rust/pull/80553 +[80527]: https://github.com/rust-lang/rust/pull/80527 +[79519]: https://github.com/rust-lang/rust/pull/79519 +[79423]: https://github.com/rust-lang/rust/pull/79423 +[79208]: https://github.com/rust-lang/rust/pull/79208 +[78429]: https://github.com/rust-lang/rust/pull/78429 +[82733]: https://github.com/rust-lang/rust/pull/82733 +[82594]: https://github.com/rust-lang/rust/pull/82594 +[cargo/9181]: https://github.com/rust-lang/cargo/pull/9181 +[`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 +[`Peekable::next_if`]: https://doc.rust-lang.org/stable/std/iter/struct.Peekable.html#method.next_if +[`Peekable::next_if_eq`]: https://doc.rust-lang.org/stable/std/iter/struct.Peekable.html#method.next_if_eq +[`Arguments::as_str`]: https://doc.rust-lang.org/stable/std/fmt/struct.Arguments.html#method.as_str +[`str::split_once`]: https://doc.rust-lang.org/stable/std/primitive.str.html#method.split_once +[`str::rsplit_once`]: https://doc.rust-lang.org/stable/std/primitive.str.html#method.rsplit_once +[`slice::partition_point`]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.partition_point +[`char::len_utf8`]: https://doc.rust-lang.org/stable/std/primitive.char.html#method.len_utf8 +[`char::len_utf16`]: https://doc.rust-lang.org/stable/std/primitive.char.html#method.len_utf16 +[`char::to_ascii_uppercase`]: https://doc.rust-lang.org/stable/std/primitive.char.html#method.to_ascii_uppercase +[`char::to_ascii_lowercase`]: https://doc.rust-lang.org/stable/std/primitive.char.html#method.to_ascii_lowercase +[`char::eq_ignore_ascii_case`]: https://doc.rust-lang.org/stable/std/primitive.char.html#method.eq_ignore_ascii_case +[`u8::to_ascii_uppercase`]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.to_ascii_uppercase +[`u8::to_ascii_lowercase`]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.to_ascii_lowercase +[`u8::eq_ignore_ascii_case`]: https://doc.rust-lang.org/stable/std/primitive.u8.html#method.eq_ignore_ascii_case + Version 1.51.0 (2021-03-25) ============================