Commit 518a5a48 authored by Aaron Power's avatar Aaron Power

Updated RELEASES.md for 1.30.0

parent e1643a89
Version 1.30.0 (2018-10-25)
==========================
Language
--------
- [Procedural macros are now available.][52081] These kinds of macros allow for
more powerful code generation, there is a [new chapter available][proc-macros]
in Rust Programming Language book that goes further in depth.
- [You can now use keywords as identifiers using the raw identifiers
syntax (`r#`).][53236] e.g. `let r#bool = true;`
- [Using anonymous parameters in traits is now deprecated with a warning and
will be a hard error in the 2018 edition.][53272]
- [You can now use `crate` in paths.][54404] This allows you to refer to the
crate root in the path. e.g. `use crate::foo;` refers to `foo` in `src/lib.rs`.
- [Using a external crate now no longer requires being prefixed with `::`.][54404]
e.g. previously using a external crate in a module without a use statement
required `let json = ::serde_json::from_str(foo);` can now be written
as `let json = serde_json::from_str(foo);`.
- [You can now apply the `#[used]` attribute to static items to prevent the
compiler from optimising them away even if they appear to be unused.][51363]
e.g. `#[used] static FOO: u32 = 1;`
- [You can now import and reexport macros from other crates with the `use`
syntax.][50911] Macros exported with `#[macro_export]` are now placed into
the root module of the crate. If your macro relies on calling other local
macros it is recommended to export with the
`#[macro_export(local_inner_macros)]` attribute so that users won't have to
import those macros.
- [`mod.rs` files are now optional.][54146] Previously if you had a `foo` module
with a `bar` submodule, you would have `src/foo/mod.rs` and `src/foo/bar.rs`.
Now you can have `src/foo.rs` and `src/foo/bar.rs` to achieve the same effect.
- [You can now catch visibility keywords (e.g. `pub`, `pub(crate)`) in macros
using the `vis` specifier.][53370]
- [Non-macro attributes now allow all forms of literals not just
strings.][53044] e.g. Previously you would write `#[attr("true")]` you can now
write `#[attr(true)]`.
- [You can now specify a function to handle a panic in the Rust runtime with the
`#[panic_handler]` attribute.][51366]
Compiler
--------
- [Added the `riscv32imc-unknown-none-elf` target.][53822]
- [Added the `aarch64-unknown-netbsd` target][53165]
Libraries
---------
- [`ManuallyDrop` now allows the inner type to be unsized.][53033]
Stabilized APIs
---------------
- [`Ipv4Addr::BROADCAST`]
- [`Ipv4Addr::LOCALHOST`]
- [`Ipv4Addr::UNSPECIFIED`]
- [`Ipv6Addr::LOCALHOST`]
- [`Ipv6Addr::UNSPECIFIED`]
- [`Iterator::find_map`]
The following methods are a replacement methods for `trim_left`, `trim_right`,
`trim_left_matches`, and `trim_right_matches`. Which will be deprecated
in 1.33.0.
- [`str::trim_end_matches`]
- [`str::trim_end`]
- [`str::trim_start_matches`]
- [`str::trim_start`]
Cargo
----
- [`cargo run` doesn't require specifying a package in workspaces.][cargo/5877]
- [`cargo doc` now supports `--message-format=json`.][cargo/5878] This is
equivalent to calling `rustdoc --error-format=json`.
- [You can specify which edition to create a project in cargo
with `cargo new --edition`.][cargo/5984] Currently only `2015` is a
valid option.
- [Cargo will now provide a progress bar for builds.][cargo/5995]
Misc
----
- [`rustdoc` allows you to specify what edition to treat your code as with the
`--edition` option.][54057]
- [`rustdoc` now has the `--color` (Specify whether to output color) and
`--error-format` (Specify error format e.g. `json`) options.][53003]
- [We now distribute a `rust-gdbgui` script that invokes `gdbgui` with Rust
debug symbols.][53774]
- [Attributes from Rust tools such as `rustfmt` or `clippy` are now
available.][53459] e.g. `#[rustfmt::skip]` will skip formatting the next item.
[50911]: https://github.com/rust-lang/rust/pull/50911/
[51363]: https://github.com/rust-lang/rust/pull/51363/
[51366]: https://github.com/rust-lang/rust/pull/51366/
[52081]: https://github.com/rust-lang/rust/pull/52081/
[53003]: https://github.com/rust-lang/rust/pull/53003/
[53033]: https://github.com/rust-lang/rust/pull/53033/
[53044]: https://github.com/rust-lang/rust/pull/53044/
[53165]: https://github.com/rust-lang/rust/pull/53165/
[53213]: https://github.com/rust-lang/rust/pull/53213/
[53236]: https://github.com/rust-lang/rust/pull/53236/
[53272]: https://github.com/rust-lang/rust/pull/53272/
[53370]: https://github.com/rust-lang/rust/pull/53370/
[53459]: https://github.com/rust-lang/rust/pull/53459/
[53774]: https://github.com/rust-lang/rust/pull/53774/
[53822]: https://github.com/rust-lang/rust/pull/53822/
[54057]: https://github.com/rust-lang/rust/pull/54057/
[54146]: https://github.com/rust-lang/rust/pull/54146/
[54404]: https://github.com/rust-lang/rust/pull/54404/
[cargo/5877]: https://github.com/rust-lang/cargo/pull/5877/
[cargo/5878]: https://github.com/rust-lang/cargo/pull/5878/
[cargo/5984]: https://github.com/rust-lang/cargo/pull/5984/
[cargo/5995]: https://github.com/rust-lang/cargo/pull/5995/
[proc-macros]: https://doc.rust-lang.org/book/2018-edition/ch19-06-macros.html
[`Ipv4Addr::BROADCAST`]: https://doc.rust-lang.org/nightly/std/net/struct.Ipv4Addr.html#associatedconstant.BROADCAST
[`Ipv4Addr::LOCALHOST`]: https://doc.rust-lang.org/nightly/std/net/struct.Ipv4Addr.html#associatedconstant.LOCALHOST
[`Ipv4Addr::UNSPECIFIED`]: https://doc.rust-lang.org/nightly/std/net/struct.Ipv4Addr.html#associatedconstant.UNSPECIFIED
[`Ipv6Addr::LOCALHOST`]: https://doc.rust-lang.org/nightly/std/net/struct.Ipv6Addr.html#associatedconstant.LOCALHOST
[`Ipv6Addr::UNSPECIFIED`]: https://doc.rust-lang.org/nightly/std/net/struct.Ipv6Addr.html#associatedconstant.UNSPECIFIED
[`Iterator::find_map`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.find_map
[`str::trim_end_matches`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.trim_end_matches
[`str::trim_end`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.trim_end
[`str::trim_start_matches`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.trim_start_matches
[`str::trim_start`]: https://doc.rust-lang.org/nightly/std/primitive.str.html#method.trim_start
Version 1.29.2 (2018-10-11)
===========================
......@@ -6,6 +127,7 @@ Version 1.29.2 (2018-10-11)
[54639]: https://github.com/rust-lang/rust/pull/54639
Version 1.29.1 (2018-09-25)
===========================
......@@ -19,6 +141,7 @@ Security Notes
Thank you to Scott McMurray for responsibily disclosing this vulnerability to
us.
Version 1.29.0 (2018-09-13)
==========================
......@@ -73,7 +196,10 @@ Compatibility Notes
Consider using the `home_dir` function from
https://crates.io/crates/dirs instead.
- [`rustc` will no longer silently ignore invalid data in target spec.][52330]
- [`cfg` attributes and `--cfg` command line flags are now more
strictly validated.][53893]
[53893]: https://github.com/rust-lang/rust/pull/53893/
[52861]: https://github.com/rust-lang/rust/pull/52861/
[52656]: https://github.com/rust-lang/rust/pull/52656/
[52239]: https://github.com/rust-lang/rust/pull/52239/
......
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