mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 06:44:35 +00:00
1.15 release notes
This commit is contained in:
Brian Anderson
parent
bd8e9b0c82
commit
a0a4af139d
241
RELEASES.md
241
RELEASES.md
@ -1,3 +1,244 @@
|
||||
Version 1.15.0 (2017-02-02)
|
||||
===========================
|
||||
|
||||
Language
|
||||
--------
|
||||
|
||||
* Basic procedural macros allowing custom `#[derive]`, aka "macros 1.1", are
|
||||
stable. This allows popular code-generating crates like Serde and Diesel to
|
||||
work ergonomically. [RFC 1681].
|
||||
* [Tuple structs may be empty. Unary and empty tuple structs may be instantiated
|
||||
with curly braces][36868]. Part of [RFC 1506].
|
||||
* [A number of minor changes to name resolution have been activated][37127].
|
||||
They add up to more consistent semantics, allowing for future evolution of
|
||||
Rust macros. Specified in [RFC 1560], see its section on ["changes"] for
|
||||
details of what is different. The breaking changes here have been transitioned
|
||||
through the [`legacy_imports`] lint since 1.14, with no known regressions.
|
||||
* [In `macro_rules`, `path` fragments can now be parsed as type parameter
|
||||
bounds][38279]
|
||||
* [`?Sized` can be used in `where` clauses][37791]
|
||||
* [There is now a limit on the size of monomorphized types and it can be
|
||||
modified with the `#![type_size_limit]` crate attribute, similarly to
|
||||
the `#![recursion_limit]` attribute][37789]
|
||||
|
||||
Compiler
|
||||
--------
|
||||
|
||||
* [On Windows, the compiler will apply dllimport attributes when linking to
|
||||
extern functions][37973]. Additional attributes and flags can control which
|
||||
library kind is linked and its name. [RFC 1717].
|
||||
* [Rust-ABI symbols are no longer exported from cdylibs][38117]
|
||||
* [The `--test` flag works with procedural macro crates][38107]
|
||||
* [Fix `extern "aapcs" fn` ABI][37814]
|
||||
* [The `-C no-stack-check` flag is deprecated][37636]. It does nothing.
|
||||
* [The `format!` expander recognizes incorrect `printf` and shell-style
|
||||
formatting directives and suggests the correct format][37613].
|
||||
* [Only report one error for all unused imports in an import list][37456]
|
||||
|
||||
Compiler Performance
|
||||
--------------------
|
||||
|
||||
* [Avoid unnecessary `mk_ty` calls in `Ty::super_fold_with`][37705]
|
||||
* [Avoid more unnecessary `mk_ty` calls in `Ty::super_fold_with`][37979]
|
||||
* [Don't clone in `UnificationTable::probe`][37848]
|
||||
* [Remove `scope_auxiliary` to cut RSS by 10%][37764]
|
||||
* [Use small vectors in type walker][37760]
|
||||
* [Macro expansion performance was improved][37701]
|
||||
* [Change `HirVec<P<T>>` to `HirVec<T>` in `hir::Expr`][37642]
|
||||
* [Replace FNV with a faster hash function][37229]
|
||||
|
||||
Stabilized APIs
|
||||
---------------
|
||||
|
||||
* [`std::iter::Iterator::min_by`]
|
||||
* [`std::iter::Iterator::max_by`]
|
||||
* [`std::os::*::fs::FileExt`]
|
||||
* [`std::sync::atomic::Atomic*::get_mut`]
|
||||
* [`std::sync::atomic::Atomic*::into_inner`]
|
||||
* [`std::vec::IntoIter::as_slice`]
|
||||
* [`std::vec::IntoIter::as_mut_slice`]
|
||||
* [`std::sync::mpsc::Receiver::try_iter`]
|
||||
* [`std::os::unix::process::CommandExt::before_exec`]
|
||||
* [`std::rc::Rc::strong_count`]
|
||||
* [`std::rc::Rc::weak_count`]
|
||||
* [`std::sync::Arc::strong_count`]
|
||||
* [`std::sync::Arc::weak_count`]
|
||||
* [`std::char::encode_utf8`]
|
||||
* [`std::char::encode_utf16`]
|
||||
* [`std::cell::Ref::clone`]
|
||||
* [`std::io::Take::into_inner`]
|
||||
|
||||
Libraries
|
||||
---------
|
||||
|
||||
* [The standard sorting algorithm has been rewritten for dramatic performance
|
||||
improvements][38192]. It is a hybrid merge sort, drawing influences from
|
||||
Timsort. Previously it was a naive merge sort.
|
||||
* [`Iterator::nth` no longer has a `Sized` bound][38134]
|
||||
* [`Extend<&T>` is specialized for `Vec` where `T: Copy`][38182] to improve
|
||||
performance.
|
||||
* [`chars().count()` is much faster][37888] and so are [`chars().last()`
|
||||
and `char_indices().last()`][37882]
|
||||
* [Fix ARM Objective-C ABI in `std::env::args`][38146]
|
||||
* [Chinese characters display correctly in `fmt::Debug`][37855]
|
||||
* [Derive `Default` for `Duration`][37699]
|
||||
* [Support creation of anonymous pipes on WinXP/2k][37677]
|
||||
* [`mpsc::RecvTimeoutError` implements `Error`][37527]
|
||||
* [Don't pass overlapped handles to processes][38835]
|
||||
|
||||
Cargo
|
||||
-----
|
||||
|
||||
* [In this release, Cargo build scripts no longer have access to the `OUT_DIR`
|
||||
environment variable at build time via `env!("OUT_DIR")`][cargo/3368]. They
|
||||
should instead check the variable at runtime with `std::env`. That the value
|
||||
was set at build time was a bug, and incorrect when cross-compiling. This
|
||||
change is known to cause breakage.
|
||||
* [Add `--all` flag to `cargo test`][cargo/3221]
|
||||
* [Compile statically against the MSVC CRT][cargo/3363]
|
||||
* [Mix feature flags into fingerprint/metadata shorthash][cargo/3102]
|
||||
* [Link OpenSSL statically on OSX][cargo/3311]
|
||||
* [Apply new fingerprinting to build dir outputs][cargo/3310]
|
||||
* [Test for bad path overrides with summaries][cargo/3336]
|
||||
* [Require `cargo install --vers` to take a semver version][cargo/3338]
|
||||
* [Fix retrying crate downloads for network errors][cargo/3348]
|
||||
* [Implement string lookup for `build.rustflags` config key][cargo/3356]
|
||||
* [Emit more info on --message-format=json][cargo/3319]
|
||||
* [Assume `build.rs` in the same directory as `Cargo.toml` is a build script][cargo/3361]
|
||||
* [Don't ignore errors in workspace manifest][cargo/3409]
|
||||
* [Fix `--message-format JSON` when rustc emits non-JSON warnings][cargo/3410]
|
||||
|
||||
Tooling
|
||||
-------
|
||||
|
||||
* [Test runners (binaries built with `--test`) now support a `--list` argument
|
||||
that lists the tests it contains][38185]
|
||||
* [Test runners now support a `--exact` argument that makes the test filter
|
||||
match exactly, instead of matching only a substring of the test name][38181]
|
||||
* [rustdoc supports a `--playground-url` flag][37763]
|
||||
* [rustdoc provides more details about `#[should_panic]` errors][37749]
|
||||
|
||||
Misc
|
||||
----
|
||||
|
||||
* [The Rust build system is now written in Rust][37817]. The Makefiles may
|
||||
continue to be used in this release by passing `--disable-rustbuild` to the
|
||||
configure script, but they will be deleted soon. Note that the new build
|
||||
system uses a different on-disk layout that will likely affect any scripts
|
||||
building Rust.
|
||||
* [Rust supports i686-unknown-openbsd][38086]. Tier 3 support. No testing or
|
||||
releases.
|
||||
* [Rust supports the MSP430][37627]. Tier 3 support. No testing or releases.
|
||||
* [Rust supports the ARMv5TE architecture][37615]. Tier 3 support. No testing or
|
||||
releases.
|
||||
|
||||
Compatibility Notes
|
||||
-------------------
|
||||
|
||||
* [A number of minor changes to name resolution have been activated][37127].
|
||||
They add up to more consistent semantics, allowing for future evolution of
|
||||
Rust macros. Specified in [RFC 1560], see its section on ["changes"] for
|
||||
details of what is different. The breaking changes here have been transitioned
|
||||
through the [`legacy_imports`] lint since 1.14, with no known regressions.
|
||||
* [In this release, Cargo build scripts no longer have access to the `OUT_DIR`
|
||||
environment variable at build time via `env!("OUT_DIR")`][cargo/3368]. They
|
||||
should instead check the variable at runtime with `std::env`. That the value
|
||||
was set at build time was a bug, and incorrect when cross-compiling. This
|
||||
change is known to cause breakage.
|
||||
* [Higher-ranked lifetimes are no longer allowed to appear _only_ in associated
|
||||
types][33685]. The [`hr_lifetime_in_assoc_type` lint] has been a warning since
|
||||
1.10 and is now an error by default. It will become a hard error in the near
|
||||
future.
|
||||
* [The semantics relating modules to file system directories are changing in
|
||||
minor ways][37602]. This is captured in the new `legacy_directory_ownership`
|
||||
lint, which is a warning in this release, and will become a hard error in the
|
||||
future.
|
||||
* [Rust-ABI symbols are no longer exported from cdylibs][38117]
|
||||
* [Once `Peekable` peeks a `None` it will return that `None` without re-querying
|
||||
the underlying iterator][37834]
|
||||
|
||||
["changes"]: https://github.com/rust-lang/rfcs/blob/master/text/1560-name-resolution.md#changes-to-name-resolution-rules
|
||||
[33685]: https://github.com/rust-lang/rust/issues/33685
|
||||
[36868]: https://github.com/rust-lang/rust/pull/36868
|
||||
[37127]: https://github.com/rust-lang/rust/pull/37127
|
||||
[37229]: https://github.com/rust-lang/rust/pull/37229
|
||||
[37456]: https://github.com/rust-lang/rust/pull/37456
|
||||
[37527]: https://github.com/rust-lang/rust/pull/37527
|
||||
[37602]: https://github.com/rust-lang/rust/pull/37602
|
||||
[37613]: https://github.com/rust-lang/rust/pull/37613
|
||||
[37615]: https://github.com/rust-lang/rust/pull/37615
|
||||
[37636]: https://github.com/rust-lang/rust/pull/37636
|
||||
[37642]: https://github.com/rust-lang/rust/pull/37642
|
||||
[37677]: https://github.com/rust-lang/rust/pull/37677
|
||||
[37699]: https://github.com/rust-lang/rust/pull/37699
|
||||
[37701]: https://github.com/rust-lang/rust/pull/37701
|
||||
[37705]: https://github.com/rust-lang/rust/pull/37705
|
||||
[37749]: https://github.com/rust-lang/rust/pull/37749
|
||||
[37760]: https://github.com/rust-lang/rust/pull/37760
|
||||
[37763]: https://github.com/rust-lang/rust/pull/37763
|
||||
[37764]: https://github.com/rust-lang/rust/pull/37764
|
||||
[37789]: https://github.com/rust-lang/rust/pull/37789
|
||||
[37791]: https://github.com/rust-lang/rust/pull/37791
|
||||
[37814]: https://github.com/rust-lang/rust/pull/37814
|
||||
[37817]: https://github.com/rust-lang/rust/pull/37817
|
||||
[37834]: https://github.com/rust-lang/rust/pull/37834
|
||||
[37848]: https://github.com/rust-lang/rust/pull/37848
|
||||
[37855]: https://github.com/rust-lang/rust/pull/37855
|
||||
[37882]: https://github.com/rust-lang/rust/pull/37882
|
||||
[37888]: https://github.com/rust-lang/rust/pull/37888
|
||||
[37973]: https://github.com/rust-lang/rust/pull/37973
|
||||
[37979]: https://github.com/rust-lang/rust/pull/37979
|
||||
[38086]: https://github.com/rust-lang/rust/pull/38086
|
||||
[38107]: https://github.com/rust-lang/rust/pull/38107
|
||||
[38117]: https://github.com/rust-lang/rust/pull/38117
|
||||
[38134]: https://github.com/rust-lang/rust/pull/38134
|
||||
[38146]: https://github.com/rust-lang/rust/pull/38146
|
||||
[38181]: https://github.com/rust-lang/rust/pull/38181
|
||||
[38182]: https://github.com/rust-lang/rust/pull/38182
|
||||
[38185]: https://github.com/rust-lang/rust/pull/38185
|
||||
[38192]: https://github.com/rust-lang/rust/pull/38192
|
||||
[38279]: https://github.com/rust-lang/rust/pull/38279
|
||||
[38835]: https://github.com/rust-lang/rust/pull/38835
|
||||
[RFC 1492]: https://github.com/rust-lang/rfcs/blob/master/text/1492-dotdot-in-patterns.md
|
||||
[RFC 1506]: https://github.com/rust-lang/rfcs/blob/master/text/1506-adt-kinds.md
|
||||
[RFC 1560]: https://github.com/rust-lang/rfcs/blob/master/text/1560-name-resolution.md
|
||||
[RFC 1681]: https://github.com/rust-lang/rfcs/blob/master/text/1681-macros-1.1.md
|
||||
[RFC 1717]: https://github.com/rust-lang/rfcs/blob/master/text/1717-dllimport.md
|
||||
[`hr_lifetime_in_assoc_type` lint]: https://github.com/rust-lang/rust/issues/33685
|
||||
[`legacy_imports`]: https://github.com/rust-lang/rust/pull/38271
|
||||
[cargo/3102]: https://github.com/rust-lang/cargo/pull/3102
|
||||
[cargo/3221]: https://github.com/rust-lang/cargo/pull/3221
|
||||
[cargo/3310]: https://github.com/rust-lang/cargo/pull/3310
|
||||
[cargo/3311]: https://github.com/rust-lang/cargo/pull/3311
|
||||
[cargo/3319]: https://github.com/rust-lang/cargo/pull/3319
|
||||
[cargo/3336]: https://github.com/rust-lang/cargo/pull/3336
|
||||
[cargo/3338]: https://github.com/rust-lang/cargo/pull/3338
|
||||
[cargo/3348]: https://github.com/rust-lang/cargo/pull/3348
|
||||
[cargo/3356]: https://github.com/rust-lang/cargo/pull/3356
|
||||
[cargo/3361]: https://github.com/rust-lang/cargo/pull/3361
|
||||
[cargo/3363]: https://github.com/rust-lang/cargo/pull/3363
|
||||
[cargo/3368]: https://github.com/rust-lang/cargo/issues/3368
|
||||
[cargo/3409]: https://github.com/rust-lang/cargo/pull/3409
|
||||
[cargo/3410]: https://github.com/rust-lang/cargo/pull/3410
|
||||
[`std::iter::Iterator::min_by`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.min_by
|
||||
[`std::iter::Iterator::max_by`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.max_by
|
||||
[`std::os::*::fs::FileExt`]: https://doc.rust-lang.org/std/os/unix/fs/trait.FileExt.html
|
||||
[`std::sync::atomic::Atomic*::get_mut`]: https://doc.rust-lang.org/std/sync/atomic/struct.AtomicU8.html#method.get_mut
|
||||
[`std::sync::atomic::Atomic*::into_inner`]: https://doc.rust-lang.org/std/sync/atomic/struct.AtomicU8.html#method.into_inner
|
||||
[`std::vec::IntoIter::as_slice`]: https://doc.rust-lang.org/std/vec/struct.IntoIter.html#method.as_slice
|
||||
[`std::vec::IntoIter::as_mut_slice`]: https://doc.rust-lang.org/std/vec/struct.IntoIter.html#method.as_mut_slice
|
||||
[`std::sync::mpsc::Receiver::try_iter`]: https://doc.rust-lang.org/std/sync/mpsc/struct.Receiver.html#method.try_iter
|
||||
[`std::os::unix::process::CommandExt::before_exec`]: https://doc.rust-lang.org/std/os/unix/process/trait.CommandExt.html#tymethod.before_exec
|
||||
[`std::rc::Rc::strong_count`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.strong_count
|
||||
[`std::rc::Rc::weak_count`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.weak_count
|
||||
[`std::sync::Arc::strong_count`]: https://doc.rust-lang.org/std/sync/struct.Arc.html#method.strong_count
|
||||
[`std::sync::Arc::weak_count`]: https://doc.rust-lang.org/std/sync/struct.Arc.html#method.weak_count
|
||||
[`std::char::encode_utf8`]: https://doc.rust-lang.org/std/primitive.char.html#method.encode_utf8
|
||||
[`std::char::encode_utf16`]: https://doc.rust-lang.org/std/primitive.char.html#method.encode_utf16
|
||||
[`std::cell::Ref::clone`]: https://doc.rust-lang.org/std/cell/struct.Ref.html#method.clone
|
||||
[`std::io::Take::into_inner`]: https://doc.rust-lang.org/std/io/struct.Take.html#method.into_inner
|
||||
|
||||
|
||||
Version 1.14.0 (2016-12-22)
|
||||
===========================
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user