Updated RELEASES.md for 1.27.0 #51261

XAMPPRocky · 2018-05-31T22:34:50Z

Rendered
r? @Mark-Simulacrum
cc @rust-lang/release

Mark-Simulacrum · 2018-05-31T22:37:47Z

RELEASES.md

+  now stable.][48851] e.g.
+  `fn foo<#[lifetime_attr] 'a, #[type_attr] T: 'a>() {}`
+- [The `#[must_use]` attribute can now also be used on functions as well as
+  types.][48925] Which provides a lint that by default warns users when the


Mark-Simulacrum · 2018-05-31T22:39:45Z

RELEASES.md

+- [`HashMap::remove_entry`]
+- [`Take::set_limit`]
+- [`fs::read`]
+- [`fs::write`]


fs::{read, write} were stabilized in 1.26 as far as I can tell.

Mark-Simulacrum · 2018-05-31T22:42:03Z

RELEASES.md

+----
+- [Added “The Rustc book” into the official documentation.][49707]
+  [“The Rustc book”] documents and teaches how to use the rustc compiler.
+- [All books are now seachable.][49623]


s/seachable/searchable

Mark-Simulacrum · 2018-05-31T22:42:29Z

RELEASES.md

+  work.][49896] e.g. `::core::prelude::v1::StrExt::is_empty("")` will not
+  compile, `"".is_empty()` will still compile.
+- [`Debug` output on `atomic::{AtomicBool, AtomicIsize, AtomicPtr, AtomicUsize}`
+  will only printthe inner type.][48553] e.g.


s/printthe/print the

Mark-Simulacrum · 2018-05-31T22:42:43Z

RELEASES.md

+- [`Debug` output on `atomic::{AtomicBool, AtomicIsize, AtomicPtr, AtomicUsize}`
+  will only printthe inner type.][48553] e.g.
+  `print!("{:?}", AtomicBool::new(true))` will print `true`
+  not `AtomicBool(false)`.


s/false/true

Mark-Simulacrum · 2018-05-31T22:44:01Z

RELEASES.md

+- [`[T]::rsplit`]
+- [`[T]::swap_with_slice`]
+- [`fs::read`]
+- [`fs::write`]


fs::{read, write} where stabilized in 1.26

kennytm · 2018-05-31T23:01:25Z

RELEASES.md

+- [A lot of methods for `[u8]`, `f32`, and `f64` previously only available in
+  std are now available in core.][49896]
+- [`memchr::repeat_byte` is now optimised to have a reduced code
+  size footprint.][50398] It will also be slightly faster on 64bit platforms.


I'm not sure this item worth putting into the release note. The original PR doesn't have the relnote label either. The perf isn't really impressive, just as the PR's title indicated.

Release notes have never been exclusively pull requests with the relnotes label. I always like including optimisations as it is something a lot of people are interested in. If you feel strongly about its inclusion I'm fine with removing it.

I do feel quite strongly because memchr::repeat_byte isn't a public API.

We could say public APIs like <str>::{contains, find, rfind, matches, split, replace} with a char pattern becomes a bit faster.

I completely forgot that memchr is not in the public API. 😅

kennytm · 2018-05-31T23:04:59Z

RELEASES.md

+[`Iterator::try_for_each`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.try_for_each
+[`NonNull::cast`]: https://doc.rust-lang.org/std/ptr/struct.NonNull.html#method.cast
+[`Option::filter`]: https://doc.rust-lang.org/std/option/enum.Option.html#method.filter
+[`String::replace_range`]: https://doc.rust-lang.org/beta/std/string/struct.String.html#method.replace_range


The link should not point to beta

kennytm · 2018-05-31T23:08:30Z

RELEASES.md

+  disable this feature ahead of time by setting any of the following `autobins`,
+  `autobenches`, `autoexamples`, `autotests` to false.
+- [Cargo will now cache compiler information.][5359] This can be disabled by the
+  `CARGO_CACHE_RUSTC_INFO` environment variable.


Clarify that you disable it by setting the env var to 0 (CARGO_CACHE_RUSTC_INFO=0)

killercup · 2018-06-01T01:03:43Z

RELEASES.md

+  be used as an identifer.
+- [The dyn syntax is now available.][49968] This syntax is equivalent to the
+  bare `Trait` syntax, and should make it clearer when being used in tandem with
+  `impl Trait`. Since it is equivalent to follow syntax has the same behaviour.


Did you mean "the following syntax has" and to end with a colon there?

killercup · 2018-06-01T01:07:51Z

RELEASES.md

+  }
+  ```
+- [The maximum number for `repr(align(N))` is now 2²⁹.][50378] Previously you
+  could enter higher numbers but they were not supported by LLVM.


I feel we're missing a

512MB alignment ought to be enough for anybody

quote here

nikic · 2018-06-01T08:13:42Z

RELEASES.md

+  to `Self`.][49630]
+- [`std::str::replace` now has the `#[must_use]` attribute][50177] to clarify
+  that the operation isn't done in place.
+- [`ManuallyDrop::new` is now a constant function.][50148]


The function is marked rustc_const_unstable, so it's not stable yet.

Yeah, it looks like that relnotes label was out of date.

ehuss · 2018-06-01T19:39:07Z

RELEASES.md

+  `readme`, and `repository` fields.][5386]
+- [Added the `--target-dir` optional argument.][5393] This allows you to specify
+  a different directory than `target` for placing compilation artifacts.
+- [Added the `--out-dir` optional argument to `cargo-build`.][5203] Allowing you


--out-dir is an unstable, nightly-only feature.

clarfonthey · 2018-06-01T22:00:27Z

RELEASES.md

+  will only print the inner type.][48553] e.g.
+  `print!("{:?}", AtomicBool::new(true))` will print `true`
+  not `AtomicBool(true)`.
+- [`?` can no longer be a seperator in macros.][49719] e.g. the following will


s/seperator/separator

sgrif · 2018-06-01T22:49:20Z

RELEASES.md

+  `fn foo<#[lifetime_attr] 'a, #[type_attr] T: 'a>() {}`
+- [The `#[must_use]` attribute can now also be used on functions as well as
+  types.][48925] It provides a lint that by default warns users when the
+  return type is not being used.


Should this read "the return value of the function"?

I prefer: ".. when the value, returned by the function, is not used." :)

bors · 2018-06-02T03:07:51Z

☔ The latest upstream changes (presumably #51287) made this pull request unmergeable. Please resolve the merge conflicts.

orium · 2018-06-11T18:35:23Z

RELEASES.md

+
+Libraries
+---------
+- [SIMD(Single Instruction Multiple Data) on x86/x86_64 is now stable.][49664]


I think you missed a space before (

pietroalbini · 2018-06-11T20:27:03Z

By the way @Aaronepower, you should rebase this on top of master soonish, it would be bad being too late to backport this into beta.

Mark-Simulacrum · 2018-06-11T23:07:21Z

My current plan is to do the backport simultaneous with promotion to stable since this cannot fail if we run out of time

XAMPPRocky · 2018-06-12T15:42:28Z

@pietroalbini Yeah, I was waiting on #51507 to be merged before I rebased in case somehow that also caused a merged conflict. It's rebased now.

Mark-Simulacrum · 2018-06-12T17:16:26Z

@bors r+

bors · 2018-06-12T17:16:27Z

📌 Commit 46f74a3 has been approved by Mark-Simulacrum

@Mark-Simulacrum

Updated RELEASES.md for 1.27.0 [Rendered](https://github.com/Aaronepower/rust/blob/master/RELEASES.md) r? @Mark-Simulacrum cc @rust-lang/release

Rollup of 3 pull requests Successful merges: - #51261 (Updated RELEASES.md for 1.27.0) - #51502 (Make parse_seq_to_end and parse_path public) - #51510 (Long diagnostic for E0538) Failed merges:

@Mark-Simulacrum

[beta] Rollup backports * #51261: Updated RELEASES.md for 1.27.0 * #51591: Remove `?` macro separator compatibility note from 1.27 release notes r? @Mark-Simulacrum

XAMPPRocky added C-enhancement Category: An issue proposing an enhancement or a PR with one. S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-release Relevant to the release subteam, which will review and decide on the PR/issue. labels May 31, 2018

rust-highfive assigned Mark-Simulacrum May 31, 2018

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label May 31, 2018

XAMPPRocky force-pushed the master branch from d4af21b to 391fd7d Compare May 31, 2018 22:39

Mark-Simulacrum reviewed May 31, 2018

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kennytm reviewed May 31, 2018

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kennytm added the beta-nominated Nominated for backporting to the compiler in the beta channel. label May 31, 2018

killercup reviewed Jun 1, 2018

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nikic reviewed Jun 1, 2018

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ehuss reviewed Jun 1, 2018

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clarfonthey reviewed Jun 1, 2018

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sgrif reviewed Jun 1, 2018

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Mark-Simulacrum added the beta-accepted Accepted for backporting to the compiler in the beta channel. label Jun 2, 2018

TimNN added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 5, 2018

orium reviewed Jun 11, 2018

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XAMPPRocky force-pushed the master branch 2 times, most recently from e803025 to 54b5132 Compare June 12, 2018 15:40

Updated RELEASES.md for 1.27.0

46f74a3

XAMPPRocky force-pushed the master branch from 54b5132 to 46f74a3 Compare June 12, 2018 15:45

bors removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jun 12, 2018

bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Jun 12, 2018

Mark-Simulacrum mentioned this pull request Jun 12, 2018

Rollup of 3 pull requests #51521

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bors merged commit 46f74a3 into rust-lang:master Jun 12, 2018

pietroalbini mentioned this pull request Jun 16, 2018

[beta] Rollup backports #51593

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pietroalbini removed the beta-nominated Nominated for backporting to the compiler in the beta channel. label Jun 16, 2018

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Updated RELEASES.md for 1.27.0 #51261

Updated RELEASES.md for 1.27.0 #51261

XAMPPRocky commented May 31, 2018

Mark-Simulacrum May 31, 2018

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bors commented Jun 12, 2018

Updated RELEASES.md for 1.27.0 #51261

Updated RELEASES.md for 1.27.0 #51261

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