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authorAaron Power <Aaronepower@users.noreply.github.com>2017-12-04 23:27:25 +0000
committerGitHub <noreply@github.com>2017-12-04 23:27:25 +0000
commitb5b3da3fad0f173ba68abb569d423a3cf7efb70a (patch)
treeb9c5d2fdf4bdb822528a010d253dc66eea784b85 /RELEASES.md
parentUpdated RELEASES.md for 1.23.0 (diff)
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@@ -3,37 +3,38 @@ Version 1.23.0 (2018-01-04)
3 3
4Language 4Language
5-------- 5--------
6- [Fixed displaying duplicate errors on some trait bounds.][45772] 6- [Arbitrary `auto` traits are now permitted in trait objects.][45772]
7- [rustc now uses subtyping on the left hand side of binary operations.][45435]
8 Which should fix some confusing errors in some operations.
7 9
8Compiler 10Compiler
9-------- 11--------
10- [Enabled `TrapUnreachable` in LLVM which should prevent some cases of 12- [Enabled `TrapUnreachable` in LLVM which should mitigate the impact of
11 undefined behaviour.][45920] 13 undefined behaviour.][45920]
12- [rustc now suggests renaming import if names clash.][45660] 14- [rustc now suggests renaming import if names clash.][45660]
13- [Display errors/warnings correctly when there are zero-width or 15- [Display errors/warnings correctly when there are zero-width or
14 wide characters.][45711] 16 wide characters.][45711]
15- [rustc now uses subtyping on the left hand side of binary operations.][45435]
16 Which should fix some confusing errors in some operations.
17- [Bumped the minimum LLVM to 3.9][45326]
18- [rustc now avoids unnecessary copies of arguments that are 17- [rustc now avoids unnecessary copies of arguments that are
19 simple bindings][45380] This should improve memory usage on average by 5-10%. 18 simple bindings][45380] This should improve memory usage on average by 5-10%.
20- [Updated musl used to build musl rustc to 1.1.17][45393] 19- [Updated musl used to build musl rustc to 1.1.17][45393]
20- [Refactored type memory layouts and ABIs.][45225] This will reduce
21 memory size for some types. Eg. `io::Result<()>` is now 16 bytes
22 where it was previously 24.
21 23
22Libraries 24Libraries
23--------- 25---------
24- [impl `From<T>` for `Mutex<T>` and `RwLock<T>`][46082] 26- [Allow a trailing comma in `assert_eq/ne` macro][45887]
25- [Allow a trailling comma in `assert_eq/ne` macro][45887]
26- [Implement Hash for raw pointers to unsized types][45483] 27- [Implement Hash for raw pointers to unsized types][45483]
27- [impl `From<*mut T>` for `AtomicPtr<T>`][45610] 28- [impl `From<*mut T>` for `AtomicPtr<T>`][45610]
28- [impl `From<{number_size}>` for `Atomic{number_size}`][45610] eg. `From<u8>` 29- [impl `From<usize/isize>` for `AtomicUsize/AtomicIsize`.][45610]
29 for `AtomicU8`.
30- [Removed the `T: Sync` requirement for `RwLock<T>: Send`][45267] 30- [Removed the `T: Sync` requirement for `RwLock<T>: Send`][45267]
31- [Removed `T: Sized` requirement for `<*const T>::as_ref` 31- [Removed `T: Sized` requirement for `{<*const T>, <*mut T>}::as_ref`
32 and `<*const T>::as_mut`][44932] 32 and `<*mut T>::as_mut`][44932]
33- [Optimized `Thread::{park, unpark}` implementation][45524] 33- [Optimized `Thread::{park, unpark}` implementation][45524]
34- [Improved `SliceExt::binary_search` performance.][45333] 34- [Improved `SliceExt::binary_search` performance.][45333]
35- [Optimized `Read::read_to_end`.][46050] This increase file read speed and for 35- [impl `FromIterator<()>` for `()`][45379]
36 small files reduce the number of syscalls. 36- [Copied `AsciiExt` trait methods to primitive types.][44042] Use of `AsciiExt`
37 is now deprecated.
37 38
38Stabilized APIs 39Stabilized APIs
39--------------- 40---------------
@@ -55,25 +56,22 @@ Misc
55 56
56Compatibility Notes 57Compatibility Notes
57------------------- 58-------------------
58- [`fmt::Arguments` can no longer be shared across threads.][45198]
59- [Changes have been made to type equality to make it more correct, 59- [Changes have been made to type equality to make it more correct,
60 in rare cases this could break some code.][45853] [Tracking issue for 60 in rare cases this could break some code.][45853] [Tracking issue for
61 further information][45852] 61 further information][45852]
62- [Changed how closures are stored, as a result of this change you can no longer
63 have a situation where a closure directly calls itself.][45879]
64- [`char::escape_debug` now uses Unicode 10 over 9.][45571] 62- [`char::escape_debug` now uses Unicode 10 over 9.][45571]
65- [Upgraded Android SDK to 27, and NDK to r15c.][45580] This drops support for 63- [Upgraded Android SDK to 27, and NDK to r15c.][45580] This drops support for
66 Android 9, the minimum supported version is Android 14. 64 Android 9, the minimum supported version is Android 14.
67- [Refactored type memory layouts and ABIs.][45225] This reduce code generated 65- [Bumped the minimum LLVM to 3.9][45326]
68 for a lot of types. 66
69 67[44042]: https://github.com/rust-lang/rust/pull/44042
70[44932]: https://github.com/rust-lang/rust/pull/44932 68[44932]: https://github.com/rust-lang/rust/pull/44932
71[45198]: https://github.com/rust-lang/rust/pull/45198
72[45225]: https://github.com/rust-lang/rust/pull/45225 69[45225]: https://github.com/rust-lang/rust/pull/45225
73[45267]: https://github.com/rust-lang/rust/pull/45267 70[45267]: https://github.com/rust-lang/rust/pull/45267
74[45324]: https://github.com/rust-lang/rust/pull/45324 71[45324]: https://github.com/rust-lang/rust/pull/45324
75[45326]: https://github.com/rust-lang/rust/pull/45326 72[45326]: https://github.com/rust-lang/rust/pull/45326
76[45333]: https://github.com/rust-lang/rust/pull/45333 73[45333]: https://github.com/rust-lang/rust/pull/45333
74[45379]: https://github.com/rust-lang/rust/pull/45379
77[45380]: https://github.com/rust-lang/rust/pull/45380 75[45380]: https://github.com/rust-lang/rust/pull/45380
78[45393]: https://github.com/rust-lang/rust/pull/45393 76[45393]: https://github.com/rust-lang/rust/pull/45393
79[45435]: https://github.com/rust-lang/rust/pull/45435 77[45435]: https://github.com/rust-lang/rust/pull/45435
@@ -88,12 +86,9 @@ Compatibility Notes
88[45772]: https://github.com/rust-lang/rust/pull/45772 86[45772]: https://github.com/rust-lang/rust/pull/45772
89[45852]: https://github.com/rust-lang/rust/issues/45852 87[45852]: https://github.com/rust-lang/rust/issues/45852
90[45853]: https://github.com/rust-lang/rust/pull/45853 88[45853]: https://github.com/rust-lang/rust/pull/45853
91[45879]: https://github.com/rust-lang/rust/pull/45879
92[45887]: https://github.com/rust-lang/rust/pull/45887 89[45887]: https://github.com/rust-lang/rust/pull/45887
93[45903]: https://github.com/rust-lang/rust/pull/45903 90[45903]: https://github.com/rust-lang/rust/pull/45903
94[45920]: https://github.com/rust-lang/rust/pull/45920 91[45920]: https://github.com/rust-lang/rust/pull/45920
95[46050]: https://github.com/rust-lang/rust/pull/46050
96[46082]: https://github.com/rust-lang/rust/pull/46082
97[cargo/4506]: https://github.com/rust-lang/cargo/pull/4506 92[cargo/4506]: https://github.com/rust-lang/cargo/pull/4506
98[cargo/4561]: https://github.com/rust-lang/cargo/pull/4561 93[cargo/4561]: https://github.com/rust-lang/cargo/pull/4561
99[cargo/4592]: https://github.com/rust-lang/cargo/pull/4592 94[cargo/4592]: https://github.com/rust-lang/cargo/pull/4592