X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=RELEASES.md;h=2fcb94cf0a63dd337b35f467ee262f28644dd092;hb=1df20569dd07d91ed270ea9cfc2dbb9f56700703;hp=5dca7abcb26290408e96f09e7cce771b2ba83b9d;hpb=4abcd4042c34a80872d0e687b9aa325e68b58d08;p=rust.git diff --git a/RELEASES.md b/RELEASES.md index 5dca7abcb26..2fcb94cf0a6 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,172 @@ +Version 1.51.0 (2021-03-25) +============================ + +Language +-------- +- [You can now parameterize items such as functions, traits, and `struct`s by constant + values in addition to by types and lifetimes.][79135] Also known as "const generics" + E.g. you can now write the following. Note: Only values of primitive integers, + `bool`, or `char` types are currently permitted. + ```rust + struct GenericArray { + inner: [T; LENGTH] + } + + impl GenericArray { + const fn last(&self) -> Option<&T> { + if LENGTH == 0 { + None + } else { + Some(&self.inner[LENGTH - 1]) + } + } + } + ``` + + +Compiler +-------- + +- [Added the `-Csplit-debuginfo` codegen option for macOS platforms.][79570] + This option controls whether debug information is split across multiple files + or packed into a single file. **Note** This option is unstable on other platforms. +- [Added tier 3\* support for `aarch64_be-unknown-linux-gnu`, + `aarch64-unknown-linux-gnu_ilp32`, and `aarch64_be-unknown-linux-gnu_ilp32` targets.][81455] +- [Added tier 3 support for `i386-unknown-linux-gnu` and `i486-unknown-linux-gnu` targets.][80662] +- [The `target-cpu=native` option will now detect individual features of CPUs.][80749] + +\* Refer to Rust's [platform support page][platform-support-doc] for more +information on Rust's tiered platform support. + +Libraries +--------- + +- [`Box::downcast` is now also implemented for any `dyn Any + Send + Sync` object.][80945] +- [`str` now implements `AsMut`.][80279] +- [`u64` and `u128` now implement `From`.][79502] +- [`Error` is now implemented for `&T` where `T` implements `Error`.][75180] +- [`Poll::{map_ok, map_err}` are now implemented for `Poll>>`.][80968] +- [`unsigned_abs` is now implemented for all signed integer types.][80959] +- [`io::Empty` now implements `io::Seek`.][78044] +- [`rc::Weak` and `sync::Weak`'s methods such as `as_ptr` are now implemented for + `T: ?Sized` types.][80764] + +Stabilized APIs +--------------- + +- [`Arc::decrement_strong_count`] +- [`Arc::increment_strong_count`] +- [`Once::call_once_force`] +- [`Peekable::next_if_eq`] +- [`Peekable::next_if`] +- [`Seek::stream_position`] +- [`array::IntoIter`] +- [`panic::panic_any`] +- [`ptr::addr_of!`] +- [`ptr::addr_of_mut!`] +- [`slice::fill_with`] +- [`slice::split_inclusive_mut`] +- [`slice::split_inclusive`] +- [`slice::strip_prefix`] +- [`slice::strip_suffix`] +- [`str::split_inclusive`] +- [`sync::OnceState`] +- [`task::Wake`] + +Cargo +----- +- [Added the `split-debuginfo` profile option to control the -Csplit-debuginfo + codegen option.][cargo/9112] +- [Added the `resolver` field to `Cargo.toml` to enable the new feature resolver + and CLI option behavior.][cargo/8997] Version 2 of the feature resolver will try + to avoid unifying features of dependencies where that unification could be unwanted. + Such as using the same dependency with a `std` feature in a build scripts and + proc-macros, while using the `no-std` feature in the final binary. See the + [Cargo book documentation][feature-resolver@2.0] for more information on the feature. + +Rustdoc +------- + +- [Rustdoc will now include documentation for methods available from _nested_ `Deref` traits.][80653] +- [You can now provide a `--default-theme` flag which sets the default theme to use for + documentation.][79642] + +Various improvements to intra-doc links: + +- [You can link to non-path primitives such as `slice`.][80181] +- [You can link to associated items.][74489] +- [You can now include generic parameters when linking to items, like `Vec`.][76934] + +Misc +---- +- [You can now pass `--include-ignored` to tests (e.g. with + `cargo test -- --include-ignored`) to include testing tests marked `#[ignore]`.][80053] + +Compatibility Notes +------------------- + +- [WASI platforms no longer use the `wasm-bindgen` ABI, and instead use the wasm32 ABI.][79998] +- [`rustc` no longer promotes division, modulo and indexing operations to `const` that + could fail.][80579] +- [The minimum version of glibc for the following platforms has been bumped to version 2.31 + for the distributed artifacts.][81521] + - `armv5te-unknown-linux-gnueabi` + - `sparc64-unknown-linux-gnu` + - `thumbv7neon-unknown-linux-gnueabihf` + - `armv7-unknown-linux-gnueabi` + - `x86_64-unknown-linux-gnux32` + +Internal Only +------------- + +- [Consistently avoid constructing optimized MIR when not doing codegen][80718] + +[79135]: https://github.com/rust-lang/rust/pull/79135 +[74489]: https://github.com/rust-lang/rust/pull/74489 +[76934]: https://github.com/rust-lang/rust/pull/76934 +[79570]: https://github.com/rust-lang/rust/pull/79570 +[80181]: https://github.com/rust-lang/rust/pull/80181 +[79642]: https://github.com/rust-lang/rust/pull/79642 +[80945]: https://github.com/rust-lang/rust/pull/80945 +[80279]: https://github.com/rust-lang/rust/pull/80279 +[80053]: https://github.com/rust-lang/rust/pull/80053 +[79502]: https://github.com/rust-lang/rust/pull/79502 +[75180]: https://github.com/rust-lang/rust/pull/75180 +[79135]: https://github.com/rust-lang/rust/pull/79135 +[81521]: https://github.com/rust-lang/rust/pull/81521 +[80968]: https://github.com/rust-lang/rust/pull/80968 +[80959]: https://github.com/rust-lang/rust/pull/80959 +[80718]: https://github.com/rust-lang/rust/pull/80718 +[80653]: https://github.com/rust-lang/rust/pull/80653 +[80579]: https://github.com/rust-lang/rust/pull/80579 +[79998]: https://github.com/rust-lang/rust/pull/79998 +[78044]: https://github.com/rust-lang/rust/pull/78044 +[81455]: https://github.com/rust-lang/rust/pull/81455 +[80764]: https://github.com/rust-lang/rust/pull/80764 +[80749]: https://github.com/rust-lang/rust/pull/80749 +[80662]: https://github.com/rust-lang/rust/pull/80662 +[cargo/8997]: https://github.com/rust-lang/cargo/pull/8997 +[cargo/9112]: https://github.com/rust-lang/cargo/pull/9112 +[feature-resolver@2.0]: https://doc.rust-lang.org/nightly/cargo/reference/features.html#feature-resolver-version-2 +[`Once::call_once_force`]: https://doc.rust-lang.org/stable/std/sync/struct.Once.html#method.call_once_force +[`sync::OnceState`]: https://doc.rust-lang.org/stable/std/sync/struct.OnceState.html +[`panic::panic_any`]: https://doc.rust-lang.org/stable/std/panic/fn.panic_any.html +[`slice::strip_prefix`]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.strip_prefix +[`slice::strip_suffix`]: https://doc.rust-lang.org/stable/std/primitive.slice.html#method.strip_prefix +[`Arc::increment_strong_count`]: https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.increment_strong_count +[`Arc::decrement_strong_count`]: https://doc.rust-lang.org/nightly/std/sync/struct.Arc.html#method.decrement_strong_count +[`slice::fill_with`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.fill_with +[`ptr::addr_of!`]: https://doc.rust-lang.org/nightly/std/ptr/macro.addr_of.html +[`ptr::addr_of_mut!`]: https://doc.rust-lang.org/nightly/std/ptr/macro.addr_of_mut.html +[`array::IntoIter`]: https://doc.rust-lang.org/nightly/std/array/struct.IntoIter.html +[`slice::split_inclusive`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_inclusive +[`slice::split_inclusive_mut`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_inclusive_mut +[`str::split_inclusive`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.split_inclusive +[`task::Wake`]: https://doc.rust-lang.org/nightly/std/task/trait.Wake.html +[`Seek::stream_position`]: https://doc.rust-lang.org/nightly/std/io/trait.Seek.html#method.stream_position +[`Peekable::next_if`]: https://doc.rust-lang.org/nightly/std/iter/struct.Peekable.html#method.next_if +[`Peekable::next_if_eq`]: https://doc.rust-lang.org/nightly/std/iter/struct.Peekable.html#method.next_if_eq + Version 1.50.0 (2021-02-11) ============================ @@ -14,7 +183,7 @@ Compiler - [The `x86_64-unknown-freebsd` is now built with the full toolset.][79484] - [Dropped support for all cloudabi targets.][78439] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -191,7 +360,7 @@ Compiler - [Output from threads spawned in tests is now captured.][78227] - [Change os and vendor values to "none" and "unknown" for some targets][78951] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -296,7 +465,7 @@ Compiler Note: If you're using cargo you must explicitly pass the `--target` flag. - [Added tier 2\* support for `aarch64-unknown-linux-musl`.][76420] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -435,7 +604,7 @@ Compiler - [Upgrade the FreeBSD toolchain to version 11.4][75204] - [`RUST_BACKTRACE`'s output is now more compact.][75048] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -720,7 +889,7 @@ Compiler - [Added tier 3 support for the `thumbv7a-uwp-windows-msvc` target.][72133] - [Upgraded to LLVM 10.][67759] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. @@ -1229,7 +1398,7 @@ Compiler pointing to the location where they were called, rather than `core`'s internals. ][67887] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -1327,7 +1496,7 @@ Compiler - [You can now provide `--extern` flag without a path, indicating that it is available from the search path or specified with an `-L` flag.][64882] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. [argfile-docs]: https://doc.rust-lang.org/nightly/rustc/command-line-arguments.html#path-load-command-line-flags-from-a-path @@ -1451,7 +1620,7 @@ Compiler - [Added tier 3 support for the `mips64-unknown-linux-muslabi64`, and `mips64el-unknown-linux-muslabi64` targets.][65843] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -1601,7 +1770,7 @@ Compiler output of successful tests.][62600] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -1695,7 +1864,7 @@ Compiler - [Added tier 3 support for the `riscv32i-unknown-none-elf` target.][62784] - [Upgraded to LLVM 9.][62592] -\* Refer to Rust's [platform support page][forge-platform-support] for more +\* Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries @@ -1782,7 +1951,7 @@ Compatibility Notes [`Duration::mul_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f32 [`Duration::mul_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f64 [`any::type_name`]: https://doc.rust-lang.org/std/any/fn.type_name.html -[forge-platform-support]: https://forge.rust-lang.org/release/platform-support.html +[platform-support-doc]: https://doc.rust-lang.org/nightly/rustc/platform-support.html [pipeline-internals]: https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199 Version 1.37.0 (2019-08-15)