+Version 1.19.0 (2017-07-20)
+===========================
+
+Language
+--------
+
+- [Numeric fields can now be used for creating tuple structs.][41145] [RFC 1506]
+ For example `struct Point(u32, u32); let x = Point { 0: 7, 1: 0 };`.
+- [Macro recursion limit increased to 1024 from 64.][41676]
+- [Added lint for detecting unused macros.][41907]
+- [`loop` can now return a value with `break`.][42016] [RFC 1624]
+ For example: `let x = loop { break 7; };`
+- [C compatible `union`s are now available.][42068] [RFC 1444] They can only
+ contain `Copy` types and cannot have a `Drop` implementation.
+ Example: `union Foo { bar: u8, baz: usize }`
+- [Non capturing closures can now be coerced into `fn`s,][42162] [RFC 1558]
+ Example: `let foo: fn(u8) -> u8 = |v: u8| { v };`
+
+Compiler
+--------
+
+- [Add support for bootstrapping the Rust compiler toolchain on Android.][41370]
+- [Change `arm-linux-androideabi` to correspond to the `armeabi`
+ official ABI.][41656] If you wish to continue targeting the `armeabi-v7a` ABI
+ you should use `--target armv7-linux-androideabi`.
+- [Fixed ICE when removing a source file between compilation sessions.][41873]
+- [Minor optimisation of string operations.][42037]
+- [Compiler error message is now `aborting due to previous error(s)` instead of
+ `aborting due to N previous errors`][42150] This was previously inaccurate and
+ would only count certain kinds of errors.
+- [The compiler now supports Visual Studio 2017][42225]
+- [The compiler is now built against LLVM 4.0.1 by default][42948]
+- [Added a lot][42264] of [new error codes][42302]
+- [Added `target-feature=+crt-static` option][37406] [RFC 1721] Which allows
+ libraries with C Run-time Libraries(CRT) to be statically linked.
+- [Fixed various ARM codegen bugs][42740]
+
+Libraries
+---------
+
+- [`String` now implements `FromIterator<Cow<'a, str>>` and
+ `Extend<Cow<'a, str>>`][41449]
+- [`Vec` now implements `From<&mut [T]>`][41530]
+- [`Box<[u8]>` now implements `From<Box<str>>`][41258]
+- [`SplitWhitespace` now implements `Clone`][41659]
+- [`[u8]::reverse` is now 5x faster and `[u16]::reverse` is now
+ 1.5x faster][41764]
+- [`eprint!` and `eprintln!` macros added to prelude.][41192] Same as the `print!`
+ macros, but for printing to stderr.
+
+Stabilized APIs
+---------------
+
+- [`OsString::shrink_to_fit`]
+- [`cmp::Reverse`]
+- [`Command::envs`]
+- [`thread::ThreadId`]
+
+Cargo
+-----
+
+- [Build scripts can now add environment variables to the environment
+ the crate is being compiled in.
+ Example: `println!("cargo:rustc-env=FOO=bar");`][cargo/3929]
+- [Subcommands now replace the current process rather than spawning a new
+ child process][cargo/3970]
+- [Workspace members can now accept glob file patterns][cargo/3979]
+- [Added `--all` flag to the `cargo bench` subcommand to run benchmarks of all
+ the members in a given workspace.][cargo/3988]
+- [Updated `libssh2-sys` to 0.2.6][cargo/4008]
+- [Target directory path is now in the cargo metadata][cargo/4022]
+- [Cargo no longer checks out a local working directory for the
+ crates.io index][cargo/4026] This should provide smaller file size for the
+ registry, and improve cloning times, especially on Windows machines.
+- [Added an `--exclude` option for excluding certain packages when using the
+ `--all` option][cargo/4031]
+- [Cargo will now automatically retry when receiving a 5xx error
+ from crates.io][cargo/4032]
+- [The `--features` option now accepts multiple comma or space
+ delimited values.][cargo/4084]
+- [Added support for custom target specific runners][cargo/3954]
+
+Misc
+----
+
+- [Added `rust-windbg.cmd`][39983] for loading rust `.natvis` files in the
+ Windows Debugger.
+- [Rust will now release XZ compressed packages][rust-installer/57]
+- [rustup will now prefer to download rust packages with
+ XZ compression][rustup/1100] over GZip packages.
+- [Added the ability to escape `#` in rust documentation][41785] By adding
+ additional `#`'s ie. `##` is now `#`
+
+Compatibility Notes
+-------------------
+
+- [`MutexGuard<T>` may only be `Sync` if `T` is `Sync`.][41624]
+- [`-Z` flags are now no longer allowed to be used on the stable
+ compiler.][41751] This has been a warning for a year previous to this.
+- [As a result of the `-Z` flag change, the `cargo-check` plugin no
+ longer works][42844]. Users should migrate to the built-in `check`
+ command, which has been available since 1.16.
+- [Ending a float literal with `._` is now a hard error.
+ Example: `42._` .][41946]
+- [Any use of a private `extern crate` outside of its module is now a
+ hard error.][36886] This was previously a warning.
+- [`use ::self::foo;` is now a hard error.][36888] `self` paths are always
+ relative while the `::` prefix makes a path absolute, but was ignored and the
+ path was relative regardless.
+- [Floating point constants in match patterns is now a hard error][36890]
+ This was previously a warning.
+- [Struct or enum constants that don't derive `PartialEq` & `Eq` used
+ match patterns is now a hard error][36891] This was previously a warning.
+- [Lifetimes named `'_` are no longer allowed.][36892] This was previously
+ a warning.
+- [From the pound escape, lines consisting of multiple `#`s are
+ now visible][41785]
+- [It is an error to reexport private enum variants][42460]. This is
+ known to break a number of crates that depend on an older version of
+ mustache.
+- [On Windows, if `VCINSTALLDIR` is set incorrectly, `rustc` will try
+ to use it to find the linker, and the build will fail where it did
+ not previously][42607]
+
+[36886]: https://github.com/rust-lang/rust/issues/36886
+[36888]: https://github.com/rust-lang/rust/issues/36888
+[36890]: https://github.com/rust-lang/rust/issues/36890
+[36891]: https://github.com/rust-lang/rust/issues/36891
+[36892]: https://github.com/rust-lang/rust/issues/36892
+[37406]: https://github.com/rust-lang/rust/issues/37406
+[39983]: https://github.com/rust-lang/rust/pull/39983
+[41145]: https://github.com/rust-lang/rust/pull/41145
+[41192]: https://github.com/rust-lang/rust/pull/41192
+[41258]: https://github.com/rust-lang/rust/pull/41258
+[41370]: https://github.com/rust-lang/rust/pull/41370
+[41449]: https://github.com/rust-lang/rust/pull/41449
+[41530]: https://github.com/rust-lang/rust/pull/41530
+[41624]: https://github.com/rust-lang/rust/pull/41624
+[41656]: https://github.com/rust-lang/rust/pull/41656
+[41659]: https://github.com/rust-lang/rust/pull/41659
+[41676]: https://github.com/rust-lang/rust/pull/41676
+[41751]: https://github.com/rust-lang/rust/pull/41751
+[41764]: https://github.com/rust-lang/rust/pull/41764
+[41785]: https://github.com/rust-lang/rust/pull/41785
+[41873]: https://github.com/rust-lang/rust/pull/41873
+[41907]: https://github.com/rust-lang/rust/pull/41907
+[41946]: https://github.com/rust-lang/rust/pull/41946
+[42016]: https://github.com/rust-lang/rust/pull/42016
+[42037]: https://github.com/rust-lang/rust/pull/42037
+[42068]: https://github.com/rust-lang/rust/pull/42068
+[42150]: https://github.com/rust-lang/rust/pull/42150
+[42162]: https://github.com/rust-lang/rust/pull/42162
+[42225]: https://github.com/rust-lang/rust/pull/42225
+[42264]: https://github.com/rust-lang/rust/pull/42264
+[42302]: https://github.com/rust-lang/rust/pull/42302
+[42460]: https://github.com/rust-lang/rust/issues/42460
+[42607]: https://github.com/rust-lang/rust/issues/42607
+[42740]: https://github.com/rust-lang/rust/pull/42740
+[42844]: https://github.com/rust-lang/rust/issues/42844
+[42948]: https://github.com/rust-lang/rust/pull/42948
+[RFC 1444]: https://github.com/rust-lang/rfcs/pull/1444
+[RFC 1506]: https://github.com/rust-lang/rfcs/pull/1506
+[RFC 1558]: https://github.com/rust-lang/rfcs/pull/1558
+[RFC 1624]: https://github.com/rust-lang/rfcs/pull/1624
+[RFC 1721]: https://github.com/rust-lang/rfcs/pull/1721
+[`Command::envs`]: https://doc.rust-lang.org/std/process/struct.Command.html#method.envs
+[`OsString::shrink_to_fit`]: https://doc.rust-lang.org/std/ffi/struct.OsString.html#method.shrink_to_fit
+[`cmp::Reverse`]: https://doc.rust-lang.org/std/cmp/struct.Reverse.html
+[`thread::ThreadId`]: https://doc.rust-lang.org/std/thread/struct.ThreadId.html
+[cargo/3929]: https://github.com/rust-lang/cargo/pull/3929
+[cargo/3954]: https://github.com/rust-lang/cargo/pull/3954
+[cargo/3970]: https://github.com/rust-lang/cargo/pull/3970
+[cargo/3979]: https://github.com/rust-lang/cargo/pull/3979
+[cargo/3988]: https://github.com/rust-lang/cargo/pull/3988
+[cargo/4008]: https://github.com/rust-lang/cargo/pull/4008
+[cargo/4022]: https://github.com/rust-lang/cargo/pull/4022
+[cargo/4026]: https://github.com/rust-lang/cargo/pull/4026
+[cargo/4031]: https://github.com/rust-lang/cargo/pull/4031
+[cargo/4032]: https://github.com/rust-lang/cargo/pull/4032
+[cargo/4084]: https://github.com/rust-lang/cargo/pull/4084
+[rust-installer/57]: https://github.com/rust-lang/rust-installer/pull/57
+[rustup/1100]: https://github.com/rust-lang-nursery/rustup.rs/pull/1100
+
+
+Version 1.18.0 (2017-06-08)
+===========================
+
+Language
+--------
+
+- [Stabilize pub(restricted)][40556] `pub` can now accept a module path to
+ make the item visible to just that module tree. Also accepts the keyword
+ `crate` to make something public to the whole crate but not users of the
+ library. Example: `pub(crate) mod utils;`. [RFC 1422].
+- [Stabilize `#![windows_subsystem]` attribute][40870] conservative exposure of the
+ `/SUBSYSTEM` linker flag on Windows platforms. [RFC 1665].
+- [Refactor of trait object type parsing][40043] Now `ty` in macros can accept
+ types like `Write + Send`, trailing `+` are now supported in trait objects,
+ and better error reporting for trait objects starting with `?Sized`.
+- [0e+10 is now a valid floating point literal][40589]
+- [Now warns if you bind a lifetime parameter to 'static][40734]
+- [Tuples, Enum variant fields, and structs with no `repr` attribute or with
+ `#[repr(Rust)]` are reordered to minimize padding and produce a smaller
+ representation in some cases.][40377]
+
+Compiler
+--------
+
+- [rustc can now emit mir with `--emit mir`][39891]
+- [Improved LLVM IR for trivial functions][40367]
+- [Added explanation for E0090(Wrong number of lifetimes are supplied)][40723]
+- [rustc compilation is now 15%-20% faster][41469] Thanks to optimisation
+ opportunities found through profiling
+- [Improved backtrace formatting when panicking][38165]
+
+Libraries
+---------
+
+- [Specialized `Vec::from_iter` being passed `vec::IntoIter`][40731] if the
+ iterator hasn't been advanced the original `Vec` is reassembled with no actual
+ iteration or reallocation.
+- [Simplified HashMap Bucket interface][40561] provides performance
+ improvements for iterating and cloning.
+- [Specialize Vec::from_elem to use calloc][40409]
+- [Fixed Race condition in fs::create_dir_all][39799]
+- [No longer caching stdio on Windows][40516]
+- [Optimized insertion sort in slice][40807] insertion sort in some cases
+ 2.50%~ faster and in one case now 12.50% faster.
+- [Optimized `AtomicBool::fetch_nand`][41143]
+
+Stabilized APIs
+---------------
+
+- [`Child::try_wait`]
+- [`HashMap::retain`]
+- [`HashSet::retain`]
+- [`PeekMut::pop`]
+- [`TcpStream::peek`]
+- [`UdpSocket::peek`]
+- [`UdpSocket::peek_from`]
+
+Cargo
+-----
+
+- [Added partial Pijul support][cargo/3842] Pijul is a version control system in Rust.
+ You can now create new cargo projects with Pijul using `cargo new --vcs pijul`
+- [Now always emits build script warnings for crates that fail to build][cargo/3847]
+- [Added Android build support][cargo/3885]
+- [Added `--bins` and `--tests` flags][cargo/3901] now you can build all programs
+ of a certain type, for example `cargo build --bins` will build all
+ binaries.
+- [Added support for haiku][cargo/3952]
+
+Misc
+----
+
+- [rustdoc can now use pulldown-cmark with the `--enable-commonmark` flag][40338]
+- [Added rust-winbg script for better debugging on Windows][39983]
+- [Rust now uses the official cross compiler for NetBSD][40612]
+- [rustdoc now accepts `#` at the start of files][40828]
+- [Fixed jemalloc support for musl][41168]
+
+Compatibility Notes
+-------------------
+
+- [Changes to how the `0` flag works in format!][40241] Padding zeroes are now
+ always placed after the sign if it exists and before the digits. With the `#`
+ flag the zeroes are placed after the prefix and before the digits.
+- [Due to the struct field optimisation][40377], using `transmute` on structs
+ that have no `repr` attribute or `#[repr(Rust)]` will no longer work. This has
+ always been undefined behavior, but is now more likely to break in practice.
+- [The refactor of trait object type parsing][40043] fixed a bug where `+` was
+ receiving the wrong priority parsing things like `&for<'a> Tr<'a> + Send` as
+ `&(for<'a> Tr<'a> + Send)` instead of `(&for<'a> Tr<'a>) + Send`
+- [Overlapping inherent `impl`s are now a hard error][40728]
+- [`PartialOrd` and `Ord` must agree on the ordering.][41270]
+- [`rustc main.rs -o out --emit=asm,llvm-ir`][41085] Now will output
+ `out.asm` and `out.ll` instead of only one of the filetypes.
+- [ calling a function that returns `Self` will no longer work][41805] when
+ the size of `Self` cannot be statically determined.
+- [rustc now builds with a "pthreads" flavour of MinGW for Windows GNU][40805]
+ this has caused a few regressions namely:
+
+ - Changed the link order of local static/dynamic libraries (respecting the
+ order on given rather than having the compiler reorder).
+ - Changed how MinGW is linked, native code linked to dynamic libraries
+ may require manually linking to the gcc support library (for the native
+ code itself)
+
+[38165]: https://github.com/rust-lang/rust/pull/38165
+[39799]: https://github.com/rust-lang/rust/pull/39799
+[39891]: https://github.com/rust-lang/rust/pull/39891
+[39983]: https://github.com/rust-lang/rust/pull/39983
+[40043]: https://github.com/rust-lang/rust/pull/40043
+[40241]: https://github.com/rust-lang/rust/pull/40241
+[40338]: https://github.com/rust-lang/rust/pull/40338
+[40367]: https://github.com/rust-lang/rust/pull/40367
+[40377]: https://github.com/rust-lang/rust/pull/40377
+[40409]: https://github.com/rust-lang/rust/pull/40409
+[40516]: https://github.com/rust-lang/rust/pull/40516
+[40556]: https://github.com/rust-lang/rust/pull/40556
+[40561]: https://github.com/rust-lang/rust/pull/40561
+[40589]: https://github.com/rust-lang/rust/pull/40589
+[40612]: https://github.com/rust-lang/rust/pull/40612
+[40723]: https://github.com/rust-lang/rust/pull/40723
+[40728]: https://github.com/rust-lang/rust/pull/40728
+[40731]: https://github.com/rust-lang/rust/pull/40731
+[40734]: https://github.com/rust-lang/rust/pull/40734
+[40805]: https://github.com/rust-lang/rust/pull/40805
+[40807]: https://github.com/rust-lang/rust/pull/40807
+[40828]: https://github.com/rust-lang/rust/pull/40828
+[40870]: https://github.com/rust-lang/rust/pull/40870
+[41085]: https://github.com/rust-lang/rust/pull/41085
+[41143]: https://github.com/rust-lang/rust/pull/41143
+[41168]: https://github.com/rust-lang/rust/pull/41168
+[41270]: https://github.com/rust-lang/rust/issues/41270
+[41469]: https://github.com/rust-lang/rust/pull/41469
+[41805]: https://github.com/rust-lang/rust/issues/41805
+[RFC 1422]: https://github.com/rust-lang/rfcs/blob/master/text/1422-pub-restricted.md
+[RFC 1665]: https://github.com/rust-lang/rfcs/blob/master/text/1665-windows-subsystem.md
+[`Child::try_wait`]: https://doc.rust-lang.org/std/process/struct.Child.html#method.try_wait
+[`HashMap::retain`]: https://doc.rust-lang.org/std/collections/struct.HashMap.html#method.retain
+[`HashSet::retain`]: https://doc.rust-lang.org/std/collections/struct.HashSet.html#method.retain
+[`PeekMut::pop`]: https://doc.rust-lang.org/std/collections/binary_heap/struct.PeekMut.html#method.pop
+[`TcpStream::peek`]: https://doc.rust-lang.org/std/net/struct.TcpStream.html#method.peek
+[`UdpSocket::peek_from`]: https://doc.rust-lang.org/std/net/struct.UdpSocket.html#method.peek_from
+[`UdpSocket::peek`]: https://doc.rust-lang.org/std/net/struct.UdpSocket.html#method.peek
+[cargo/3842]: https://github.com/rust-lang/cargo/pull/3842
+[cargo/3847]: https://github.com/rust-lang/cargo/pull/3847
+[cargo/3885]: https://github.com/rust-lang/cargo/pull/3885
+[cargo/3901]: https://github.com/rust-lang/cargo/pull/3901
+[cargo/3952]: https://github.com/rust-lang/cargo/pull/3952
+
+
Version 1.17.0 (2017-04-27)
===========================
projects / rust.git / blobdiff