Updated release notes for 1.20 #43627
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| Original file line number | Diff line number | Diff line change |
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| Version 1.20.0 (2017-08-31) | ||
| =========================== | ||
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| Language | ||
| -------- | ||
| - [Associated constants in traits is now stabilised.][42809] | ||
| - [A lot of macro bugs are now fixed.][42913] | ||
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| Compiler | ||
| -------- | ||
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| - [Struct fields are now properly coerced to the expected field type.][42807] | ||
| - [Enabled wasm LLVM backend][42571] WASM can now be built with the | ||
| `wasm32-experimental-emscripten` target. | ||
| - [Changed some of the error messages to be more helpful.][42033] | ||
| - [Add support for RELRO(RELocation Read-Only) for platforms that support | ||
| it.][43170] | ||
| - [rustc now reports the total number of errors on compilation failure][43015] | ||
| previously this was only the number of errors in the pass that failed. | ||
| - [Expansion in rustc has been sped up 29x.][42533] | ||
| - [added `msp430-none-elf` target.][43099] | ||
| - [rustc will now suggest one-argument enum variant to fix type mismatch when | ||
| applicable][43178] | ||
| - [Fixes backtraces on Redox][43228] | ||
| - [rustc now identifies different versions of same crate when absolute paths of | ||
| different types match in an error message.][42826] | ||
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| Libraries | ||
| --------- | ||
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| - [Relaxed Debug constraints on `{HashMap,BTreeMap}::{Keys,Values}`.][42854] | ||
| - [Impl `PartialEq`, `Eq`, `PartialOrd`, `Ord`, `Debug`, `Hash` for unsized | ||
| tuples.][43011] | ||
| - [Impl `fmt::{Display, Debug}` for `Ref`, `RefMut`, `MutexGuard`, | ||
| `RwLockReadGuard`, `RwLockWriteGuard`][42822] | ||
| - [Impl `Clone` for `DefaultHasher`.][42799] | ||
| - [Impl `Sync` for `SyncSender`.][42397] | ||
| - [Impl `FromStr` for `char`][42271] | ||
| - [Fixed how `{f32, f64}::{is_sign_negative, is_sign_positive}` handles | ||
| NaN.][42431] | ||
| - [allow messages in the `unimplemented!()` macro.][42155] | ||
| ie. `unimplemented!("Waiting for 1.21 to be stable")` | ||
| - [`pub(restricted)` is now supported in the `thread_local!` macro.][43185] | ||
| - [Upgrade to Unicode 10.0.0][42999] | ||
| - [Reimplemented `{f32, f64}::{min, max}` in Rust instead of using CMath.][42430] | ||
| - [Skip the main thread's manual stack guard on Linux][43072] | ||
| - [Iterator::nth for `ops::{Range, RangeFrom}` is now done in O(1) time][43077] | ||
| - [`#[repr(align(N))]` attribute max number is now 2^31 - 1.][43097] This was | ||
| previously 2^15. | ||
| - [`{OsStr, Path}::Display` now avoids allocations where possible][42613] | ||
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| Stabilized APIs | ||
| --------------- | ||
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| - [`CStr::into_c_string`] | ||
| - [`CString::as_c_str`] | ||
| - [`CString::into_boxed_c_str`] | ||
| - [`Chain::get_mut`] | ||
| - [`Chain::get_ref`] | ||
| - [`Chain::into_inner`] | ||
| - [`Option::get_or_insert_with`] | ||
| - [`Option::get_or_insert`] | ||
| - [`OsStr::into_os_string`] | ||
| - [`OsString::into_boxed_os_str`] | ||
| - [`Take::get_mut`] | ||
| - [`Take::get_ref`] | ||
| - [`Utf8Error::error_len`] | ||
| - [`char::EscapeDebug`] | ||
| - [`char::escape_debug`] | ||
| - [`compile_error!`] | ||
| - [`f32::from_bits`] | ||
| - [`f32::to_bits`] | ||
| - [`f64::from_bits`] | ||
| - [`f64::to_bits`] | ||
| - [`mem::ManuallyDrop`] | ||
| - [`slice::sort_unstable_by_key`] | ||
| - [`slice::sort_unstable_by`] | ||
| - [`slice::sort_unstable`] | ||
| - [`ste::from_boxed_utf8_unchecked`] | ||
| - [`str::as_bytes_mut`] | ||
| - [`str::as_bytes_mut`] | ||
| - [`str::from_utf8_mut`] | ||
| - [`str::from_utf8_unchecked_mut`] | ||
| - [`str::get_mut`] | ||
| - [`str::get_unchecked_mut`] | ||
| - [`str::get_unchecked`] | ||
| - [`str::get`] | ||
| - [`str::into_boxed_bytes`] | ||
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| Cargo | ||
| ----- | ||
| - [Cargo API token location moved from `~/.cargo/config` to | ||
| `~/cargo/credentials`.][cargo/3978] | ||
| - [Cargo will now build multiple `main.rs` binaries in different | ||
| directories.][cargo/4214] ie. Having `src/server/main.rs` and | ||
| `src/client/main.rs` generates `target/debug/server` and `target/debug/client` | ||
| - [You can now specify version of a binary when installed through | ||
| `cargo install` using `--vers`.][cargo/4229] | ||
| - [Added `--no-fail-fast` flag to cargo to run all benchmarks regardless of | ||
| failure.][cargo/4248] | ||
| - [Changed the convention around which file is the crate root.][cargo/4259] | ||
| - [The `include`/`exclude` property in `Cargo.toml` now accepts gitignore paths | ||
| instead of glob patterns][cargo/4270]. Glob patterns are now deprecated. | ||
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| Compatibility Notes | ||
| ------------------- | ||
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| - [Functions with `'static` in their return types will now not be as usable as | ||
| if they were using lifetime parameters instead.][42417] | ||
| - [The reimplementation of `{f32, f64}::is_sign_{negative, positive}` now | ||
| takes the sign of NaN into account where previously didn't.][42430] | ||
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There was a problem hiding this comment. #42431 should be a compatibility note. Previously NaN returns false for both |
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| [42033]: https://github.com/rust-lang/rust/pull/42033 | ||
| [42155]: https://github.com/rust-lang/rust/pull/42155 | ||
| [42271]: https://github.com/rust-lang/rust/pull/42271 | ||
| [42397]: https://github.com/rust-lang/rust/pull/42397 | ||
| [42417]: https://github.com/rust-lang/rust/pull/42417 | ||
| [42430]: https://github.com/rust-lang/rust/pull/42430 | ||
| [42431]: https://github.com/rust-lang/rust/pull/42431 | ||
| [42533]: https://github.com/rust-lang/rust/pull/42533 | ||
| [42571]: https://github.com/rust-lang/rust/pull/42571 | ||
| [42613]: https://github.com/rust-lang/rust/pull/42613 | ||
| [42799]: https://github.com/rust-lang/rust/pull/42799 | ||
| [42807]: https://github.com/rust-lang/rust/pull/42807 | ||
| [42809]: https://github.com/rust-lang/rust/pull/42809 | ||
| [42822]: https://github.com/rust-lang/rust/pull/42822 | ||
| [42826]: https://github.com/rust-lang/rust/pull/42826 | ||
| [42854]: https://github.com/rust-lang/rust/pull/42854 | ||
| [42913]: https://github.com/rust-lang/rust/pull/42913 | ||
| [42999]: https://github.com/rust-lang/rust/pull/42999 | ||
| [43011]: https://github.com/rust-lang/rust/pull/43011 | ||
| [43015]: https://github.com/rust-lang/rust/pull/43015 | ||
| [43072]: https://github.com/rust-lang/rust/pull/43072 | ||
| [43077]: https://github.com/rust-lang/rust/pull/43077 | ||
| [43097]: https://github.com/rust-lang/rust/pull/43097 | ||
| [43099]: https://github.com/rust-lang/rust/pull/43099 | ||
| [43170]: https://github.com/rust-lang/rust/pull/43170 | ||
| [43178]: https://github.com/rust-lang/rust/pull/43178 | ||
| [43185]: https://github.com/rust-lang/rust/pull/43185 | ||
| [43228]: https://github.com/rust-lang/rust/pull/43228 | ||
| [cargo/3978]: https://github.com/rust-lang/cargo/pull/3978 | ||
| [cargo/4214]: https://github.com/rust-lang/cargo/pull/4214 | ||
| [cargo/4229]: https://github.com/rust-lang/cargo/pull/4229 | ||
| [cargo/4248]: https://github.com/rust-lang/cargo/pull/4248 | ||
| [cargo/4259]: https://github.com/rust-lang/cargo/pull/4259 | ||
| [cargo/4270]: https://github.com/rust-lang/cargo/pull/4270 | ||
| [`CStr::into_c_string`]: https://doc.rust-lang.org/std/ffi/struct.CStr.html#method.into_c_string | ||
| [`CString::as_c_str`]: https://doc.rust-lang.org/std/ffi/struct.CString.html#method.as_c_str | ||
| [`CString::into_boxed_c_str`]: https://doc.rust-lang.org/std/ffi/struct.CString.html#method.into_boxed_c_str | ||
| [`Chain::get_mut`]: https://doc.rust-lang.org/std/io/struct.Chain.html#method.get_mut | ||
| [`Chain::get_ref`]: https://doc.rust-lang.org/std/io/struct.Chain.html#method.get_ref | ||
| [`Chain::into_inner`]: https://doc.rust-lang.org/std/io/struct.Chain.html#method.into_inner | ||
| [`Option::get_or_insert_with`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.get_or_insert_with | ||
| [`Option::get_or_insert`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.get_or_insert | ||
| [`OsStr::into_os_string`]: https://doc.rust-lang.org/std/ffi/struct.OsStr.html#method.into_os_string | ||
| [`OsString::into_boxed_os_str`]: https://doc.rust-lang.org/std/ffi/struct.OsString.html#method.into_boxed_os_str | ||
| [`Take::get_mut`]: https://doc.rust-lang.org/std/io/struct.Take.html#method.get_mut | ||
| [`Take::get_ref`]: https://doc.rust-lang.org/std/io/struct.Take.html#method.get_ref | ||
| [`Utf8Error::error_len`]: https://doc.rust-lang.org/std/str/struct.Utf8Error.html#method.error_len | ||
| [`char::EscapeDebug`]: https://doc.rust-lang.org/std/char/struct.EscapeDebug.html | ||
| [`char::escape_debug`]: https://doc.rust-lang.org/std/primitive.char.html#method.escape_debug | ||
| [`compile_error!`]: https://doc.rust-lang.org/std/macro.compile_error.html | ||
| [`f32::from_bits`]: https://doc.rust-lang.org/std/primitive.f32.html#method.from_bits | ||
| [`f32::to_bits`]: https://doc.rust-lang.org/std/primitive.f32.html#method.to_bits | ||
| [`f64::from_bits`]: https://doc.rust-lang.org/std/primitive.f64.html#method.from_bits | ||
| [`f64::to_bits`]: https://doc.rust-lang.org/std/primitive.f64.html#method.to_bits | ||
| [`mem::ManuallyDrop`]: https://doc.rust-lang.org/std/mem/union.ManuallyDrop.html | ||
| [`slice::sort_unstable_by_key`]: https://doc.rust-lang.org/std/primitive.slice.html#method.sort_unstable_by_key | ||
| [`slice::sort_unstable_by`]: https://doc.rust-lang.org/std/primitive.slice.html#method.sort_unstable_by | ||
| [`slice::sort_unstable`]: https://doc.rust-lang.org/std/primitive.slice.html#method.sort_unstable | ||
| [`ste::from_boxed_utf8_unchecked`]: https://doc.rust-lang.org/std/str/fn.from_boxed_utf8_unchecked.html | ||
| [`str::as_bytes_mut`]: https://doc.rust-lang.org/std/primitive.str.html#method.as_bytes_mut | ||
| [`str::as_bytes_mut`]: https://doc.rust-lang.org/std/primitive.str.html#method.as_bytes_mut | ||
| [`str::from_utf8_mut`]: https://doc.rust-lang.org/std/str/fn.from_utf8_mut.html | ||
| [`str::from_utf8_unchecked_mut`]: https://doc.rust-lang.org/std/str/fn.from_utf8_unchecked_mut.html | ||
| [`str::get_mut`]: https://doc.rust-lang.org/std/primitive.str.html#method.get_mut | ||
| [`str::get_unchecked_mut`]: https://doc.rust-lang.org/std/primitive.str.html#method.get_unchecked_mut | ||
| [`str::get_unchecked`]: https://doc.rust-lang.org/std/primitive.str.html#method.get_unchecked | ||
| [`str::get`]: https://doc.rust-lang.org/std/primitive.str.html#method.get | ||
| [`str::into_boxed_bytes`]: https://doc.rust-lang.org/std/primitive.str.html#method.into_boxed_bytes | ||
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| Version 1.19.0 (2017-07-20) | ||
| =========================== | ||
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@@ -1679,7 +1863,7 @@ Tooling | |
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| * [Test binaries now support a `--test-threads` argument to specify the number | ||
| of threads used to run tests, and which acts the same as the | ||
| `RUST_TEST_THREADS` environment variable](https://github.com/rust-lang/rust/pull/35414) | ||
| * [The test runner now emits a warning when tests run over 60 seconds](https://github.com/rust-lang/rust/pull/35405) | ||
| * [rustdoc: Fix methods in search results](https://github.com/rust-lang/rust/pull/34752) | ||
| * [`rust-lldb` warns about unsupported versions of LLDB](https://github.com/rust-lang/rust/pull/34646) | ||
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Oh this is actually a little different than mentioned here. The change here was to infer
src/bin/$binary_name/main.rsautomatically as producign a$binary_namebinary. Previously we'd just recogniesrc/bin/*.rs, but now we're also recognizingsrc/bin/*/main.rs