|
| 1 | +Version 1.68.0 (2023年03月09日) |
| 2 | +========================== |
| 3 | + |
| 4 | +<a id="1.68.0-Language"></a> |
| 5 | + |
| 6 | +Language |
| 7 | +-------- |
| 8 | + |
| 9 | +- [Stabilize default_alloc_error_handler](https://github.com/rust-lang/rust/pull/102318/) |
| 10 | + This allows usage of `alloc` on stable without requiring the |
| 11 | + definition of a handler for allocation failure. Defining custom handlers is still unstable. |
| 12 | +- [Stabilize `efiapi` calling convention.](https://github.com/rust-lang/rust/pull/105795/) |
| 13 | +- [Remove implicit promotion for types with drop glue](https://github.com/rust-lang/rust/pull/105085/) |
| 14 | + |
| 15 | +<a id="1.68.0-Compiler"></a> |
| 16 | + |
| 17 | +Compiler |
| 18 | +-------- |
| 19 | + |
| 20 | +- [Change `bindings_with_variant_name` to deny-by-default](https://github.com/rust-lang/rust/pull/104154/) |
| 21 | +- [Allow .. to be parsed as let initializer](https://github.com/rust-lang/rust/pull/105701/) |
| 22 | +- [Add `armv7-sony-vita-newlibeabihf` as a tier 3 target](https://github.com/rust-lang/rust/pull/105712/) |
| 23 | +- [Always check alignment during compile-time const evaluation](https://github.com/rust-lang/rust/pull/104616/) |
| 24 | +- [Disable "split dwarf inlining" by default.](https://github.com/rust-lang/rust/pull/106709/) |
| 25 | +- [Add vendor to Fuchsia's target triple](https://github.com/rust-lang/rust/pull/106429/) |
| 26 | +- [Enable sanitizers for s390x-linux](https://github.com/rust-lang/rust/pull/107127/) |
| 27 | + |
| 28 | +<a id="1.68.0-Libraries"></a> |
| 29 | + |
| 30 | +Libraries |
| 31 | +--------- |
| 32 | + |
| 33 | +- [Loosen the bound on the Debug implementation of Weak.](https://github.com/rust-lang/rust/pull/90291/) |
| 34 | +- [Make `std::task::Context` !Send and !Sync](https://github.com/rust-lang/rust/pull/95985/) |
| 35 | +- [PhantomData layout guarantees](https://github.com/rust-lang/rust/pull/104081/) |
| 36 | +- [Don't derive Debug for `OnceWith` & `RepeatWith`](https://github.com/rust-lang/rust/pull/104163/) |
| 37 | +- [Implement DerefMut for PathBuf](https://github.com/rust-lang/rust/pull/105018/) |
| 38 | +- [Add O(1) `Vec -> VecDeque` conversion guarantee](https://github.com/rust-lang/rust/pull/105128/) |
| 39 | +- [Leak amplification for peek_mut() to ensure BinaryHeap's invariant is always met](https://github.com/rust-lang/rust/pull/105851/) |
| 40 | + |
| 41 | +<a id="1.68.0-Stabilized-APIs"></a> |
| 42 | + |
| 43 | +Stabilized APIs |
| 44 | +--------------- |
| 45 | + |
| 46 | +- [`{core,std}::pin::pin!`](https://doc.rust-lang.org/stable/std/pin/macro.pin.html) |
| 47 | +- [`impl From<bool> for {f32,f64}`](https://doc.rust-lang.org/stable/std/primitive.f32.html#impl-From%3Cbool%3E-for-f32) |
| 48 | +- [`std::path::MAIN_SEPARATOR_STR`](https://doc.rust-lang.org/stable/std/path/constant.MAIN_SEPARATOR_STR.html) |
| 49 | +- [`impl DerefMut for PathBuf`](https://doc.rust-lang.org/stable/std/path/struct.PathBuf.html#impl-DerefMut-for-PathBuf) |
| 50 | + |
| 51 | +These APIs are now stable in const contexts: |
| 52 | + |
| 53 | +- [`VecDeque::new`](https://doc.rust-lang.org/stable/std/collections/struct.VecDeque.html#method.new) |
| 54 | + |
| 55 | +<a id="1.68.0-Cargo"></a> |
| 56 | + |
| 57 | +Cargo |
| 58 | +----- |
| 59 | + |
| 60 | +- [Stabilize sparse registry support for crates.io](https://github.com/rust-lang/cargo/pull/11224/) |
| 61 | +- [`cargo build --verbose` tells you more about why it recompiles.](https://github.com/rust-lang/cargo/pull/11407/) |
| 62 | +- [Show progress of crates.io index update even `net.git-fetch-with-cli` option enabled](https://github.com/rust-lang/cargo/pull/11579/) |
| 63 | + |
| 64 | +<a id="1.68.0-Misc"></a> |
| 65 | + |
| 66 | +Misc |
| 67 | +---- |
| 68 | + |
| 69 | +<a id="1.68.0-Compatibility-Notes"></a> |
| 70 | + |
| 71 | +Compatibility Notes |
| 72 | +------------------- |
| 73 | + |
| 74 | +- [Add `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS` to future-incompat report](https://github.com/rust-lang/rust/pull/103418/) |
| 75 | +- [Only specify `--target` by default for `-Zgcc-ld=lld` on wasm](https://github.com/rust-lang/rust/pull/101792/) |
| 76 | +- [Bump `IMPLIED_BOUNDS_ENTAILMENT` to Deny + ReportNow](https://github.com/rust-lang/rust/pull/106465/) |
| 77 | +- [`std::task::Context` no longer implements Send and Sync](https://github.com/rust-lang/rust/pull/95985) |
| 78 | + |
| 79 | +<a id="1.68.0-Internal-Changes"></a> |
| 80 | + |
| 81 | +Internal Changes |
| 82 | +---------------- |
| 83 | + |
| 84 | +These changes do not affect any public interfaces of Rust, but they represent |
| 85 | +significant improvements to the performance or internals of rustc and related |
| 86 | +tools. |
| 87 | + |
| 88 | +- [Encode spans relative to the enclosing item](https://github.com/rust-lang/rust/pull/84762/) |
| 89 | +- [Don't normalize in AstConv](https://github.com/rust-lang/rust/pull/101947/) |
| 90 | +- [Find the right lower bound region in the scenario of partial order relations](https://github.com/rust-lang/rust/pull/104765/) |
| 91 | +- [Fix impl block in const expr](https://github.com/rust-lang/rust/pull/104889/) |
| 92 | +- [Check ADT fields for copy implementations considering regions](https://github.com/rust-lang/rust/pull/105102/) |
| 93 | +- [rustdoc: simplify JS search routine by not messing with lev distance](https://github.com/rust-lang/rust/pull/105796/) |
| 94 | +- [Enable ThinLTO for rustc on `x86_64-pc-windows-msvc`](https://github.com/rust-lang/rust/pull/103591/) |
| 95 | +- [Enable ThinLTO for rustc on `x86_64-apple-darwin`](https://github.com/rust-lang/rust/pull/103647/) |
| 96 | + |
| 97 | +Version 1.67.1 (2023年02月09日) |
| 98 | +=========================== |
| 99 | + |
| 100 | +- [Fix interoperability with thin archives.](https://github.com/rust-lang/rust/pull/107360) |
| 101 | +- [Fix an internal error in the compiler build process.](https://github.com/rust-lang/rust/pull/105624) |
| 102 | +- [Downgrade `clippy::uninlined_format_args` to pedantic.](https://github.com/rust-lang/rust-clippy/pull/10265) |
| 103 | + |
| 104 | +Version 1.67.0 (2023年01月26日) |
| 105 | +========================== |
| 106 | + |
| 107 | +<a id="1.67.0-Language"></a> |
| 108 | + |
| 109 | +Language |
| 110 | +-------- |
| 111 | + |
| 112 | +- [Make `Sized` predicates coinductive, allowing cycles.](https://github.com/rust-lang/rust/pull/100386/) |
| 113 | +- [`#[must_use]` annotations on `async fn` also affect the `Future::Output`.](https://github.com/rust-lang/rust/pull/100633/) |
| 114 | +- [Elaborate supertrait obligations when deducing closure signatures.](https://github.com/rust-lang/rust/pull/101834/) |
| 115 | +- [Invalid literals are no longer an error under `cfg(FALSE)`.](https://github.com/rust-lang/rust/pull/102944/) |
| 116 | +- [Unreserve braced enum variants in value namespace.](https://github.com/rust-lang/rust/pull/103578/) |
| 117 | + |
| 118 | +<a id="1.67.0-Compiler"></a> |
| 119 | + |
| 120 | +Compiler |
| 121 | +-------- |
| 122 | + |
| 123 | +- [Enable varargs support for calling conventions other than `C` or `cdecl`.](https://github.com/rust-lang/rust/pull/97971/) |
| 124 | +- [Add new MIR constant propagation based on dataflow analysis.](https://github.com/rust-lang/rust/pull/101168/) |
| 125 | +- [Optimize field ordering by grouping m\*2^n-sized fields with equivalently aligned ones.](https://github.com/rust-lang/rust/pull/102750/) |
| 126 | +- [Stabilize native library modifier `verbatim`.](https://github.com/rust-lang/rust/pull/104360/) |
| 127 | + |
| 128 | +Added and removed targets: |
| 129 | + |
| 130 | +- [Add a tier 3 target for PowerPC on AIX](https://github.com/rust-lang/rust/pull/102293/), `powerpc64-ibm-aix`. |
| 131 | +- [Add a tier 3 target for the Sony PlayStation 1](https://github.com/rust-lang/rust/pull/102689/), `mipsel-sony-psx`. |
| 132 | +- [Add tier 3 `no_std` targets for the QNX Neutrino RTOS](https://github.com/rust-lang/rust/pull/102701/), |
| 133 | + `aarch64-unknown-nto-qnx710` and `x86_64-pc-nto-qnx710`. |
| 134 | +- [Remove tier 3 `linuxkernel` targets](https://github.com/rust-lang/rust/pull/104015/) (not used by the actual kernel). |
| 135 | + |
| 136 | +Refer to Rust's [platform support page][platform-support-doc] |
| 137 | +for more information on Rust's tiered platform support. |
| 138 | + |
| 139 | +<a id="1.67.0-Libraries"></a> |
| 140 | + |
| 141 | +Libraries |
| 142 | +--------- |
| 143 | + |
| 144 | +- [Merge `crossbeam-channel` into `std::sync::mpsc`.](https://github.com/rust-lang/rust/pull/93563/) |
| 145 | +- [Fix inconsistent rounding of 0.5 when formatted to 0 decimal places.](https://github.com/rust-lang/rust/pull/102935/) |
| 146 | +- [Derive `Eq` and `Hash` for `ControlFlow`.](https://github.com/rust-lang/rust/pull/103084/) |
| 147 | +- [Don't build `compiler_builtins` with `-C panic=abort`.](https://github.com/rust-lang/rust/pull/103786/) |
| 148 | + |
| 149 | +<a id="1.67.0-Stabilized-APIs"></a> |
| 150 | + |
| 151 | +Stabilized APIs |
| 152 | +--------------- |
| 153 | + |
| 154 | +- [`{integer}::checked_ilog`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog) |
| 155 | +- [`{integer}::checked_ilog2`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog2) |
| 156 | +- [`{integer}::checked_ilog10`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.checked_ilog10) |
| 157 | +- [`{integer}::ilog`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog) |
| 158 | +- [`{integer}::ilog2`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog2) |
| 159 | +- [`{integer}::ilog10`](https://doc.rust-lang.org/stable/std/primitive.i32.html#method.ilog10) |
| 160 | +- [`NonZeroU*::ilog2`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#method.ilog2) |
| 161 | +- [`NonZeroU*::ilog10`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#method.ilog10) |
| 162 | +- [`NonZero*::BITS`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroU32.html#associatedconstant.BITS) |
| 163 | + |
| 164 | +These APIs are now stable in const contexts: |
| 165 | + |
| 166 | +- [`char::from_u32`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.from_u32) |
| 167 | +- [`char::from_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.from_digit) |
| 168 | +- [`char::to_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.to_digit) |
| 169 | +- [`core::char::from_u32`](https://doc.rust-lang.org/stable/core/char/fn.from_u32.html) |
| 170 | +- [`core::char::from_digit`](https://doc.rust-lang.org/stable/core/char/fn.from_digit.html) |
| 171 | + |
| 172 | +<a id="1.67.0-Compatibility-Notes"></a> |
| 173 | + |
| 174 | +Compatibility Notes |
| 175 | +------------------- |
| 176 | + |
| 177 | +- [The layout of `repr(Rust)` types now groups m\*2^n-sized fields with |
| 178 | + equivalently aligned ones.](https://github.com/rust-lang/rust/pull/102750/) |
| 179 | + This is intended to be an optimization, but it is also known to increase type |
| 180 | + sizes in a few cases for the placement of enum tags. As a reminder, the layout |
| 181 | + of `repr(Rust)` types is an implementation detail, subject to change. |
| 182 | +- [0.5 now rounds to 0 when formatted to 0 decimal places.](https://github.com/rust-lang/rust/pull/102935/) |
| 183 | + This makes it consistent with the rest of floating point formatting that |
| 184 | + rounds ties toward even digits. |
| 185 | +- [Chains of `&&` and `||` will now drop temporaries from their sub-expressions in |
| 186 | + evaluation order, left-to-right.](https://github.com/rust-lang/rust/pull/103293/) |
| 187 | + Previously, it was "twisted" such that the _first_ expression dropped its |
| 188 | + temporaries _last_, after all of the other expressions dropped in order. |
| 189 | +- [Underscore suffixes on string literals are now a hard error.](https://github.com/rust-lang/rust/pull/103914/) |
| 190 | + This has been a future-compatibility warning since 1.20.0. |
| 191 | +- [Stop passing `-export-dynamic` to `wasm-ld`.](https://github.com/rust-lang/rust/pull/105405/) |
| 192 | +- [`main` is now mangled as `__main_void` on `wasm32-wasi`.](https://github.com/rust-lang/rust/pull/105468/) |
| 193 | +- [Cargo now emits an error if there are multiple registries in the configuration |
| 194 | + with the same index URL.](https://github.com/rust-lang/cargo/pull/10592) |
| 195 | + |
| 196 | +<a id="1.67.0-Internal-Changes"></a> |
| 197 | + |
| 198 | +Internal Changes |
| 199 | +---------------- |
| 200 | + |
| 201 | +These changes do not affect any public interfaces of Rust, but they represent |
| 202 | +significant improvements to the performance or internals of rustc and related |
| 203 | +tools. |
| 204 | + |
| 205 | +- [Rewrite LLVM's archive writer in Rust.](https://github.com/rust-lang/rust/pull/97485/) |
| 206 | + |
1 | 207 | Version 1.66.1 (2023年01月10日) |
2 | 208 | =========================== |
3 | 209 |
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