diff --git a/RELEASES.md b/RELEASES.md index 54fe87dc658..f8679431339 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,5 +1,223 @@ +Version 1.5.0 (2015-12-10) +========================== + +* ~700 changes, numerous bugfixes + +Highlights +---------- + +* Stabilized APIs: + [`BinaryHeap::from`], [`BinaryHeap::into_sorted_vec`], + [`BinaryHeap::into_vec`], [`Condvar::wait_timeout`], + [`FileTypeExt::is_block_device`], [`FileTypeExt::is_char_device`], + [`FileTypeExt::is_fifo`], [`FileTypeExt::is_socket`], + [`FileTypeExt`], [`Formatter::alternate`], [`Formatter::fill`], + [`Formatter::precision`], [`Formatter::sign_aware_zero_pad`], + [`Formatter::sign_minus`], [`Formatter::sign_plus`], + [`Formatter::width`], [`Iterator::cmp`], [`Iterator::eq`], + [`Iterator::ge`], [`Iterator::gt`], [`Iterator::le`], + [`Iterator::lt`], [`Iterator::ne`], [`Iterator::partial_cmp`], + [`Path::canonicalize`], [`Path::exists`], [`Path::is_dir`], + [`Path::is_file`], [`Path::metadata`], [`Path::read_dir`], + [`Path::read_link`], [`Path::symlink_metadata`], + [`Utf8Error::valid_up_to`], [`Vec::resize`], + [`VecDeque::as_mut_slices`], [`VecDeque::as_slices`], + [`VecDeque::insert`], [`VecDeque::shrink_to_fit`], + [`VecDeque::swap_remove_back`], [`VecDeque::swap_remove_front`], + [`slice::split_first_mut`], [`slice::split_first`], + [`slice::split_last_mut`], [`slice::split_last`], + [`char::from_u32_unchecked`], [`fs::canonicalize`], + [`str::MatchIndices`], [`str::RMatchIndices`], + [`str::match_indices`], [`str::rmatch_indices`], + [`str::slice_mut_unchecked`], [`string::ParseError`]. +* Rust applications hosted on crates.io can be installed locally to + `~/.cargo/bin` with the [`cargo install`] command. Among other + things this makes it easier to augment Cargo with new subcommands: + when a binary named e.g. `cargo-foo` is found in `$PATH` it can be + invoked as `cargo foo`. +* Crates with wildcard (`*`) dependencies will [emit warnings when + published][1.5w]. In 1.6 it will no longer be possible to publish + crates with wildcard dependencies. + +Breaking Changes +---------------- + +* The rules determining when a particular lifetime must outlive + a particular value (known as '[dropck]') have been [modified + to not rely on parametricity][1.5p]. +* [Implementations of `AsRef` and `AsMut` were added to `Box`, `Rc`, + and `Arc`][1.5a]. Because these smart pointer types implement + `Deref`, this causes breakage in cases where the interior type + contains methods of the same name. +* [Correct a bug in Rc/Arc][1.5c] that caused [dropck] to be unaware + that they could drop their content. Soundness fix. +* All method invocations are [properly checked][1.5wf1] for + [well-formedness][1.5wf2]. Soundness fix. +* Traits whose supertraits contain `Self` are [not object + safe][1.5o]. Soundness fix. +* Target specifications support a [`no_default_libraries`][1.5nd] + setting that controls whether `-nodefaultlibs` is passed to the + linker, and in turn the `is_like_windows` setting no longer affects + the `-nodefaultlibs` flag. +* `#[derive(Show)]`, long-deprecated, [has been removed][1.5ds]. +* The `#[inline]` and `#[repr]` attributes [can only appear + in valid locations][1.5at]. +* Native libraries linked from the local crate are [passed to + the linker before native libraries from upstream crates][1.5nl]. +* Two rarely-used attributes, `#[no_debug]` and + `#[omit_gdb_pretty_printer_section]` [are feature gated][1.5fg]. +* Negation of unsigned integers, which has been a warning for + several releases, [is now behind a feature gate and will + generate errors][1.5nu]. +* The parser accidentally accepted visibility modifiers on + enum variants, a bug [which has been fixed][1.5ev]. +* [A bug was fixed that allowed `use` statements to import unstable + features][1.5use]. + +Language +-------- + +* When evaluating expressions at compile-time that are not + compile-time constants (const-evaluating expressions in non-const + contexts), incorrect code such as overlong bitshifts and arithmetic + overflow will [generate a warning instead of an error][1.5ce], + delaying the error until runtime. This will allow the + const-evaluator to be expanded in the future backwards-compatibly. +* The `improper_ctypes` lint [no longer warns about using `isize` and + `usize` in FFI][1.5ict]. + +Libraries +--------- + +* `Arc` and `Rc` are [covariant with respect to `T` instead of + invariant][1.5c]. +* `Default` is [implemented for mutable slices][1.5d]. +* `FromStr` is [implemented for `SockAddrV4` and `SockAddrV6`][1.5s]. +* There are now `From` conversions [between floating point + types][1.5f] where the conversions are lossless. +* Thera are now `From` conversions [between integer types][1.5i] where + the conversions are lossless. +* [`fs::Metadata` implements `Clone`][1.5fs]. +* The `parse` method [accepts a leading "+" when parsing + integers][1.5pi]. +* [`AsMut` is implemented for `Vec`][1.5am]. +* The `clone_from` implementations for `String` and `BinaryHeap` [have + been optimized][1.5cf] and no longer rely on the default impl. +* The `extern "Rust"`, `extern "C"`, `unsafe extern "Rust"` and + `unsafe extern "C"` function types now [implement `Clone`, + `PartialEq`, `Eq`, `PartialOrd`, `Ord`, `Hash`, `fmt::Pointer`, and + `fmt::Debug` for up to 12 arguments][1.5fp]. +* [Dropping `Vec`s is much faster in unoptimized builds when the + element types don't implement `Drop`][1.5dv]. +* A bug that caused in incorrect behavior when [combining `VecDeque` + with zero-sized types][1.5vdz] was resolved. +* [`PartialOrd` for slices is faster][1.5po]. + +Miscellaneous +------------- + +* [Crate metadata size was reduced by 20%][1.5md]. +* [Improvements to code generation reduced the size of libcore by 3.3 + MB and rustc's memory usage by 18MB][1.5m]. +* [Improvements to deref translation increased performance in + unoptimized builds][1.5dr]. +* Various errors in trait resolution [are deduplicated to only be + reported once][1.5te]. +* Rust has preliminary [support for rumprun kernels][1.5rr]. +* Rust has preliminary [support for NetBSD on amd64][1.5na]. + +[1.5use]: https://github.com/rust-lang/rust/pull/28364 +[1.5po]: https://github.com/rust-lang/rust/pull/28436 +[1.5ev]: https://github.com/rust-lang/rust/pull/28442 +[1.5nu]: https://github.com/rust-lang/rust/pull/28468 +[1.5dr]: https://github.com/rust-lang/rust/pull/28491 +[1.5vdz]: https://github.com/rust-lang/rust/pull/28494 +[1.5md]: https://github.com/rust-lang/rust/pull/28521 +[1.5fg]: https://github.com/rust-lang/rust/pull/28522 +[1.5dv]: https://github.com/rust-lang/rust/pull/28531 +[1.5na]: https://github.com/rust-lang/rust/pull/28543 +[1.5fp]: https://github.com/rust-lang/rust/pull/28560 +[1.5rr]: https://github.com/rust-lang/rust/pull/28593 +[1.5cf]: https://github.com/rust-lang/rust/pull/28602 +[1.5nl]: https://github.com/rust-lang/rust/pull/28605 +[1.5te]: https://github.com/rust-lang/rust/pull/28645 +[1.5at]: https://github.com/rust-lang/rust/pull/28650 +[1.5am]: https://github.com/rust-lang/rust/pull/28663 +[1.5m]: https://github.com/rust-lang/rust/pull/28778 +[1.5ict]: https://github.com/rust-lang/rust/pull/28779 +[1.5a]: https://github.com/rust-lang/rust/pull/28811 +[1.5pi]: https://github.com/rust-lang/rust/pull/28826 +[1.5ce]: https://github.com/rust-lang/rfcs/blob/master/text/1229-compile-time-asserts.md +[1.5p]: https://github.com/rust-lang/rfcs/blob/master/text/1238-nonparametric-dropck.md +[1.5i]: https://github.com/rust-lang/rust/pull/28921 +[1.5fs]: https://github.com/rust-lang/rust/pull/29021 +[1.5f]: https://github.com/rust-lang/rust/pull/29129 +[1.5ds]: https://github.com/rust-lang/rust/pull/29148 +[1.5s]: https://github.com/rust-lang/rust/pull/29190 +[1.5d]: https://github.com/rust-lang/rust/pull/29245 +[1.5o]: https://github.com/rust-lang/rust/pull/29259 +[1.5nd]: https://github.com/rust-lang/rust/pull/28578 +[1.5wf2]: https://github.com/rust-lang/rfcs/blob/master/text/1214-projections-lifetimes-and-wf.md +[1.5wf1]: https://github.com/rust-lang/rust/pull/28669 +[dropck]: https://doc.rust-lang.org/nightly/nomicon/dropck.html +[1.5c]: https://github.com/rust-lang/rust/pull/29110 +[1.5w]: https://github.com/rust-lang/rfcs/blob/master/text/1241-no-wildcard-deps.md +[`cargo install`]: https://github.com/rust-lang/rfcs/blob/master/text/1200-cargo-install.md +[`BinaryHeap::from`]: http://doc.rust-lang.org/nightly/std/convert/trait.From.html#method.from +[`BinaryHeap::into_sorted_vec`]: http://doc.rust-lang.org/nightly/std/collections/struct.BinaryHeap.html#method.into_sorted_vec +[`BinaryHeap::into_vec`]: http://doc.rust-lang.org/nightly/std/collections/struct.BinaryHeap.html#method.into_vec +[`Condvar::wait_timeout`]: http://doc.rust-lang.org/nightly/std/sync/struct.Condvar.html#method.wait_timeout +[`FileTypeExt::is_block_device`]: http://doc.rust-lang.org/nightly/std/os/unix/fs/trait.FileTypeExt.html#tymethod.is_block_device +[`FileTypeExt::is_char_device`]: http://doc.rust-lang.org/nightly/std/os/unix/fs/trait.FileTypeExt.html#tymethod.is_char_device +[`FileTypeExt::is_fifo`]: http://doc.rust-lang.org/nightly/std/os/unix/fs/trait.FileTypeExt.html#tymethod.is_fifo +[`FileTypeExt::is_socket`]: http://doc.rust-lang.org/nightly/std/os/unix/fs/trait.FileTypeExt.html#tymethod.is_socket +[`FileTypeExt`]: http://doc.rust-lang.org/nightly/std/os/unix/fs/trait.FileTypeExt.html +[`Formatter::alternate`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.alternate +[`Formatter::fill`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.fill +[`Formatter::precision`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.precision +[`Formatter::sign_aware_zero_pad`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.sign_aware_zero_pad +[`Formatter::sign_minus`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.sign_minus +[`Formatter::sign_plus`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.sign_plus +[`Formatter::width`]: http://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html#method.width +[`Iterator::cmp`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.cmp +[`Iterator::eq`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.eq +[`Iterator::ge`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.ge +[`Iterator::gt`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.gt +[`Iterator::le`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.le +[`Iterator::lt`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.lt +[`Iterator::ne`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.ne +[`Iterator::partial_cmp`]: http://doc.rust-lang.org/nightly/core/iter/trait.Iterator.html#method.partial_cmp +[`Path::canonicalize`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.canonicalize +[`Path::exists`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.exists +[`Path::is_dir`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.is_dir +[`Path::is_file`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.is_file +[`Path::metadata`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.metadata +[`Path::read_dir`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.read_dir +[`Path::read_link`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.read_link +[`Path::symlink_metadata`]: http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.symlink_metadata +[`Utf8Error::valid_up_to`]: http://doc.rust-lang.org/nightly/core/str/struct.Utf8Error.html#method.valid_up_to +[`Vec::resize`]: http://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#method.resize +[`VecDeque::as_mut_slices`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.as_mut_slices +[`VecDeque::as_slices`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.as_slices +[`VecDeque::insert`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.insert +[`VecDeque::shrink_to_fit`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.shrink_to_fit +[`VecDeque::swap_remove_back`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.swap_remove_back +[`VecDeque::swap_remove_front`]: http://doc.rust-lang.org/nightly/std/collections/struct.VecDeque.html#method.swap_remove_front +[`slice::split_first_mut`]: http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_first_mut +[`slice::split_first`]: http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_first +[`slice::split_last_mut`]: http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_last_mut +[`slice::split_last`]: http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.split_last +[`char::from_u32_unchecked`]: http://doc.rust-lang.org/nightly/std/char/fn.from_u32_unchecked.html +[`fs::canonicalize`]: http://doc.rust-lang.org/nightly/std/fs/fn.canonicalize.html +[`str::MatchIndices`]: http://doc.rust-lang.org/nightly/std/str/struct.MatchIndices.html +[`str::RMatchIndices`]: http://doc.rust-lang.org/nightly/std/str/struct.RMatchIndices.html +[`str::match_indices`]: http://doc.rust-lang.org/nightly/std/primitive.str.html#method.match_indices +[`str::rmatch_indices`]: http://doc.rust-lang.org/nightly/std/primitive.str.html#method.rmatch_indices +[`str::slice_mut_unchecked`]: http://doc.rust-lang.org/nightly/std/primitive.str.html#method.slice_mut_unchecked +[`string::ParseError`]: http://doc.rust-lang.org/nightly/std/string/enum.ParseError.html + Version 1.4.0 (2015-10-29) -============================ +========================== * ~1200 changes, numerous bugfixes