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Updated RELEASES.md for 1.38.0
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Erin Power
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RELEASES.md
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RELEASES.md
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Version 1.38.0 (2019-09-26)
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==========================
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Language
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--------
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- [The `#[global_allocator]` attribute can now be used in submodules.][62735]
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- [The `#[deprecated]` attribute can now be used on macros.][62042]
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Compiler
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--------
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- [Added pipelined compilation support to `rustc`.][62766] This will
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improve compilation times in some cases. For further information please refer
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to the [_"Evaluating pipelined rustc compilation"_][pipeline-internals] thread.
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- [Added tier 3\* support for the `aarch64-uwp-windows-msvc`, `i686-uwp-windows-gnu`,
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`i686-uwp-windows-msvc`, `x86_64-uwp-windows-gnu`, and
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`x86_64-uwp-windows-msvc` targets.][60260]
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- [Added tier 3 support for the `armv7-unknown-linux-gnueabi` and
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`armv7-unknown-linux-musleabi` targets.][63107]
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- [Added tier 3 support for the `hexagon-unknown-linux-musl` target.][62814]
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- [Added tier 3 support for the `riscv32i-unknown-none-elf` target.][62784]
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\* Refer to Rust's [platform support page][forge-platform-support] for more
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information on Rust's tiered platform support.
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Libraries
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---------
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- [`ascii::EscapeDefault` now implements `Clone` and `Display`.][63421]
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- [Derive macros for prelude traits (e.g. `Clone`, `Debug`, `Hash`) are now
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available at the same path as the trait.][63056] (e.g. The `Clone` derive macro
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is available at `std::clone::Clone`). This also makes all built-in macros
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available in `std`/`core` root. e.g. `std::include_bytes!`.
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- [`str::Chars` now implements `Debug`.][63000]
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- [`slice::{concat, connect, join}` now accepts `&[T]` in addition to `&T`.][62528]
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- [`*const T` and `*mut T` now implement `marker::Unpin`.][62583]
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- [`Arc<[T]>` and `Rc<[T]>` now implement `FromIterator<T>`.][61953]
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- [Added euclidean remainder and division operations (`div_euclid`,
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`rem_euclid`) to all numeric primitives.][61884] Additionally `checked`,
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`overflowing`, and `wrapping` versions are available for all
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integer primitives.
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- [`thread::AccessError` now implements `Clone`, `Copy`, `Eq`, `Error`, and
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`PartialEq`.][61491]
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- [`iter::{StepBy, Peekable, Take}` now implement `DoubleEndedIterator`.][61457]
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Stabilized APIs
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---------------
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- [`<*const T>::cast`]
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- [`<*mut T>::cast`]
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- [`Duration::as_secs_f32`]
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- [`Duration::as_secs_f64`]
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- [`Duration::div_duration_f32`]
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- [`Duration::div_duration_f64`]
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- [`Duration::div_f32`]
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- [`Duration::div_f64`]
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- [`Duration::from_secs_f32`]
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- [`Duration::from_secs_f64`]
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- [`Duration::mul_f32`]
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- [`Duration::mul_f64`]
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- [`any::type_name`]
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Cargo
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-----
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- [Added pipelined compilation support to `cargo`.][cargo/7143]
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- [You can now pass the `--features` option multiple times to enable
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multiple features.][cargo/7084]
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Misc
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----
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- [`rustc` will now warn about some incorrect uses of
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`mem::{uninitialized, zeroed}` that are known to cause undefined behaviour.][63346]
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[60260]: https://github.com/rust-lang/rust/pull/60260/
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[61457]: https://github.com/rust-lang/rust/pull/61457/
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[61491]: https://github.com/rust-lang/rust/pull/61491/
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[61884]: https://github.com/rust-lang/rust/pull/61884/
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[61953]: https://github.com/rust-lang/rust/pull/61953/
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[62042]: https://github.com/rust-lang/rust/pull/62042/
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[62528]: https://github.com/rust-lang/rust/pull/62528/
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[62583]: https://github.com/rust-lang/rust/pull/62583/
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[62735]: https://github.com/rust-lang/rust/pull/62735/
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[62766]: https://github.com/rust-lang/rust/pull/62766/
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[62784]: https://github.com/rust-lang/rust/pull/62784/
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[62814]: https://github.com/rust-lang/rust/pull/62814/
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[63000]: https://github.com/rust-lang/rust/pull/63000/
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[63056]: https://github.com/rust-lang/rust/pull/63056/
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[63107]: https://github.com/rust-lang/rust/pull/63107/
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[63346]: https://github.com/rust-lang/rust/pull/63346/
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[63421]: https://github.com/rust-lang/rust/pull/63421/
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[cargo/7084]: https://github.com/rust-lang/cargo/pull/7084/
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[cargo/7143]: https://github.com/rust-lang/cargo/pull/7143/
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[`<*const T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
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[`<*mut T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
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[`Duration::as_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f32
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[`Duration::as_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f64
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[`Duration::div_duration_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f32
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[`Duration::div_duration_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f64
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[`Duration::div_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f32
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[`Duration::div_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f64
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[`Duration::from_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f32
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[`Duration::from_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f64
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[`Duration::mul_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f32
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[`Duration::mul_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f64
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[`any::type_name`]: https://doc.rust-lang.org/std/any/fn.type_name.html
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[forge-platform-support]: https://forge.rust-lang.org/platform-support.html
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[pipeline-internals]: https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199
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Version 1.37.0 (2019-08-15)
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==========================
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