Language
--------
-- [You can now use `#[repr(transparent)]` on univariant `enum`s.][68122] Meaning
- that you can create an enum that has the exact layout and ABI of the type
- it contains.
- [You can now use the slice pattern syntax with subslices.][67712] e.g.
```rust
fn foo(words: &[&str]) {
match words {
["Hello", "World", "!", ..] => println!("Hello World!"),
["Foo", "Bar", ..] => println!("Baz"),
- rest => println!("{}", rest),
+ rest => println!("{:?}", rest),
}
}
```
- <!-- TODO -->
-- [Merge `TraitItem` & `ImplItem into `AssocItem`][67131]
+- [You can now use `#[repr(transparent)]` on univariant `enum`s.][68122] Meaning
+ that you can create an enum that has the exact layout and ABI of the type
+ it contains.
+- [There are some *syntax-only* changes:][67131]
+ - `default` is syntactically allowed before items in `trait` definitions.
+ - Items in `impl`s (i.e. `const`s, `type`s, and `fn`s) may syntactically
+ leave out their bodies in favor of `;`.
+ - Bounds on associated types in `impl`s are now syntactically allowed
+ (e.g. `type Foo: Ord;`).
+ - `...` (the C-variadic type) may occur syntactically directly as the type of
+ any function parameter.
+
+ These are still rejected *semantically*, so you will likely receive an error
+ but these changes can be seen and parsed by procedural macros and
+ conditional compilation.
Compiler
--------
-- [Added tier 3\* support for `armv7a-none-eabi`.][68253]
-- [Added tier 3 support for `riscv64gc-unknown-linux-gnu`.][68037]
+- [Added tier 2\* support for `armv7a-none-eabi`.][68253]
+- [Added tier 2 support for `riscv64gc-unknown-linux-gnu`.][68339]
- [`Option::{expect,unwrap}` and
`Result::{expect, expect_err, unwrap, unwrap_err}` now produce panic messages
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
+information on Rust's tiered platform support.
+
Libraries
---------
- [`iter::Empty<T>` now implements `Send` and `Sync` for any `T`.][68348]
Stabilized APIs
---------------
+- [`CondVar::wait_while`]
+- [`CondVar::wait_timeout_while`]
- [`DebugMap::key`]
- [`DebugMap::value`]
- [`ManuallyDrop::take`]
- [`matches!`]
- [`ptr::slice_from_raw_parts_mut`]
- [`ptr::slice_from_raw_parts`]
-- [`wait_timeout_while`]
-- [`wait_while`]
Cargo
-----
[68253]: https://github.com/rust-lang/rust/pull/68253/
[68348]: https://github.com/rust-lang/rust/pull/68348/
[67935]: https://github.com/rust-lang/rust/pull/67935/
-[68037]: https://github.com/rust-lang/rust/pull/68037/
+[68339]: https://github.com/rust-lang/rust/pull/68339/
[68122]: https://github.com/rust-lang/rust/pull/68122/
[67712]: https://github.com/rust-lang/rust/pull/67712/
[67887]: https://github.com/rust-lang/rust/pull/67887/
[`matches!`]: https://doc.rust-lang.org/stable/std/macro.matches.html
[`ptr::slice_from_raw_parts_mut`]: https://doc.rust-lang.org/stable/std/ptr/fn.slice_from_raw_parts_mut.html
[`ptr::slice_from_raw_parts`]: https://doc.rust-lang.org/stable/std/ptr/fn.slice_from_raw_parts.html
-[`wait_while`]: https://doc.rust-lang.org/stable/std/sync/struct.Condvar.html#method.wait_while
+[`CondVar::wait_while`]: https://doc.rust-lang.org/stable/std/sync/struct.Condvar.html#method.wait_while
+[`CondVar::wait_timeout_while`]: https://doc.rust-lang.org/stable/std/sync/struct.Condvar.html#method.wait_timeout_while
+
+
+Version 1.41.1 (2020-02-27)
+===========================
+
+* [Always check types of static items][69145]
+* [Always check lifetime bounds of `Copy` impls][69145]
+* [Fix miscompilation in callers of `Layout::repeat`][69225]
+
+[69225]: https://github.com/rust-lang/rust/issues/69225
+[69145]: https://github.com/rust-lang/rust/pull/69145
Version 1.41.0 (2020-01-30)