Rollup merge of rust-lang#64283 - XAMPPRocky:master, r=Mark-Simulacrum

Updated RELEASES.md for 1.38.0

### [Rendered](https://github.com/XAMPPRocky/rust/blob/master/RELEASES.md)

r? @Mark-Simulacrum
cc @rust-lang/release

Author: tmandry

RELEASES.md

@@ -1,3 +1,108 @@
+Version 1.38.0 (2019-09-26)
+==========================
+
+Language
+--------
+- [The `#[global_allocator]` attribute can now be used in submodules.][62735]
+- [The `#[deprecated]` attribute can now be used on macros.][62042]
+
+Compiler
+--------
+- [Added pipelined compilation support to `rustc`.][62766] This will
+  improve compilation times in some cases. For further information please refer
+  to the [_"Evaluating pipelined rustc compilation"_][pipeline-internals] thread.
+- [Added tier 3\* support for the `aarch64-uwp-windows-msvc`, `i686-uwp-windows-gnu`,
+  `i686-uwp-windows-msvc`, `x86_64-uwp-windows-gnu`, and
+  `x86_64-uwp-windows-msvc` targets.][60260]
+- [Added tier 3 support for the `armv7-unknown-linux-gnueabi` and
+  `armv7-unknown-linux-musleabi` targets.][63107]
+- [Added tier 3 support for the `hexagon-unknown-linux-musl` target.][62814]
+- [Added tier 3 support for the `riscv32i-unknown-none-elf` target.][62784]
+
+\* Refer to Rust's [platform support page][forge-platform-support] for more
+information on Rust's tiered platform support.
+
+Libraries
+---------
+- [`ascii::EscapeDefault` now implements `Clone` and `Display`.][63421]
+- [Derive macros for prelude traits (e.g. `Clone`, `Debug`, `Hash`) are now
+  available at the same path as the trait.][63056] (e.g. The `Clone` derive macro
+  is available at `std::clone::Clone`). This also makes all built-in macros
+  available in `std`/`core` root. e.g. `std::include_bytes!`.
+- [`str::Chars` now implements `Debug`.][63000]
+- [`slice::{concat, connect, join}` now accepts `&[T]` in addition to `&T`.][62528]
+- [`*const T` and `*mut T` now implement `marker::Unpin`.][62583]
+- [`Arc<[T]>` and `Rc<[T]>` now implement `FromIterator<T>`.][61953]
+- [Added euclidean remainder and division operations (`div_euclid`,
+  `rem_euclid`) to all numeric primitives.][61884] Additionally `checked`,
+  `overflowing`, and `wrapping` versions are available for all
+  integer primitives.
+- [`thread::AccessError` now implements `Clone`, `Copy`, `Eq`, `Error`, and
+  `PartialEq`.][61491]
+- [`iter::{StepBy, Peekable, Take}` now implement `DoubleEndedIterator`.][61457]
+
+Stabilized APIs
+---------------
+- [`<*const T>::cast`]
+- [`<*mut T>::cast`]
+- [`Duration::as_secs_f32`]
+- [`Duration::as_secs_f64`]
+- [`Duration::div_duration_f32`]
+- [`Duration::div_duration_f64`]
+- [`Duration::div_f32`]
+- [`Duration::div_f64`]
+- [`Duration::from_secs_f32`]
+- [`Duration::from_secs_f64`]
+- [`Duration::mul_f32`]
+- [`Duration::mul_f64`]
+- [`any::type_name`]
+
+Cargo
+-----
+- [Added pipelined compilation support to `cargo`.][cargo/7143]
+- [You can now pass the `--features` option multiple times to enable
+  multiple features.][cargo/7084]
+
+Misc
+----
+- [`rustc` will now warn about some incorrect uses of
+  `mem::{uninitialized, zeroed}` that are known to cause undefined behaviour.][63346]
+
+[60260]: https://github.com/rust-lang/rust/pull/60260/
+[61457]: https://github.com/rust-lang/rust/pull/61457/
+[61491]: https://github.com/rust-lang/rust/pull/61491/
+[61884]: https://github.com/rust-lang/rust/pull/61884/
+[61953]: https://github.com/rust-lang/rust/pull/61953/
+[62042]: https://github.com/rust-lang/rust/pull/62042/
+[62528]: https://github.com/rust-lang/rust/pull/62528/
+[62583]: https://github.com/rust-lang/rust/pull/62583/
+[62735]: https://github.com/rust-lang/rust/pull/62735/
+[62766]: https://github.com/rust-lang/rust/pull/62766/
+[62784]: https://github.com/rust-lang/rust/pull/62784/
+[62814]: https://github.com/rust-lang/rust/pull/62814/
+[63000]: https://github.com/rust-lang/rust/pull/63000/
+[63056]: https://github.com/rust-lang/rust/pull/63056/
+[63107]: https://github.com/rust-lang/rust/pull/63107/
+[63346]: https://github.com/rust-lang/rust/pull/63346/
+[63421]: https://github.com/rust-lang/rust/pull/63421/
+[cargo/7084]: https://github.com/rust-lang/cargo/pull/7084/
+[cargo/7143]: https://github.com/rust-lang/cargo/pull/7143/
+[`<*const T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`<*mut T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`Duration::as_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f32
+[`Duration::as_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f64
+[`Duration::div_duration_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f32
+[`Duration::div_duration_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f64
+[`Duration::div_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f32
+[`Duration::div_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f64
+[`Duration::from_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f32
+[`Duration::from_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f64
+[`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/platform-support.html
+[pipeline-internals]: https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199
+
 Version 1.37.0 (2019-08-15)
 ==========================