Release notes for 1.8 #32810

brson · Apr 7, 2016

cc @steveklabnik to me the highlights are compound assignment overloading, 32-bit MSVC builds being ready for use, and the cargo improvements.

Rendered.

rust-highfive · Apr 7, 2016

r? @nikomatsakis

(rust_highfive has picked a reviewer for you, use r? to override)

sfackler · Apr 7, 2016

sfackler reviewed Apr 7, 2016

View changes

sfackler · Apr 7, 2016

RELEASES.md

+  instead return widened integers. [RFC 1415].
+* [`btree_set::{IntoIter, Iter, Range}` are covariant][1.8cv].
+* [Atomics are not volatile][1.8a].
+* [All types is `sync::mpsc` implement `fmt::Debug`][1.8mp].


retep998 · Apr 7, 2016

retep998 reviewed Apr 7, 2016

View changes

retep998 · Apr 7, 2016

RELEASES.md

+* [Tuple and unit enum variants from other crates are in the type
+  namespace][1.8tn].
+* [MSVC builds of Rust on Windows emit `.lib` files for the `staticlib`
+  library type instead of `.a` files][1.8st].


This actually affects all Rust on Windows, both gnu and msvc. The change that is specific to msvc is that import libraries for dylibs were renamed from foo.lib to foo.dll.lib, and it is only specific to msvc because gnu currently doesn't emit import libraries.

Thanks for the clarifications.

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+  traits. [RFC 953].
+* Empty structs can be defined with braces, as in `struct Foo { }`, in
+  addition to the non-braced form, `struct Foo;`. [RFC 218].
+* [The `#[thread_local]` attribute can be applied to extern statics][1.8tl].


This attribute isn't stable yet, so perhaps we should hold off on mentioning it?

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+    [`BitXorAssign`], [`ShlAssign`], [`ShrAssign`].
+* [The `write!` and `writeln!` macros correctly emit errors if any of
+  their arguments can't be formatted][1.8w].
+* [Various I/O functions support large files on Linux][1.8l].


"on 32-bit Linux"

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+  numbers [no longer return platform-specific types][1.8r], but
+  instead return widened integers. [RFC 1415].
+* [`btree_set::{IntoIter, Iter, Range}` are covariant][1.8cv].
+* [Atomics are not volatile][1.8a].


"Atomic loads and stores are no longer volatile"

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+Misc
+----
+
+* [32-bit MSVC builds use SEH for unwinding instead of DWARF][1.8ms].


Here 32-bit MSVC actually never used DWARF, it just flat out never worked before. This is essentially the first release where 32-bit MSVC is a tier 1 platform

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+  directory][1.8ci].  It is otherwise like `cargo new`.
+* [Cargo has configuration keys for `-v` and
+  `--color`][1.8cc]. `verbose` and `color`, respectively, go in the
+  `[term]` section of `.cargo/configure`.


.cargo/config

alexcrichton · Apr 8, 2016

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton · Apr 8, 2016

RELEASES.md

+* On Unix, [stack overflow triggers a runtime abort instead of a
+  SIGSEGV][1.8so].
+* [`Command::spawn` and its equivalents return an error if any of
+  its command-line arguments contain interior `NULL`s][1.8n].


s/NULL/NUL/

alexcrichton · Apr 8, 2016

Thanks for putting these together @brson !

japaric · Apr 8, 2016

May also want to mention that there are now a bunch of new nightly releases of rustc and cargo for these hosts: 3 arm linux triples, aarch64 linux and {net,free}bsd. And libstd binaries for i686-musl (did this reach prod yet?) and mips(el)-musl. However, I don't know if any of those will have a stable/beta release next week. Perhaps @alexcrichton can confirm that?

alexcrichton · Apr 8, 2016

Right of course! I guess maybe it's a little soon to announce rustup, but we've got a whole mess of new target standard libraries built just yet. Unfortunately the compilers @japaric mentions are only available on nightly (soon to be beta), but we've got new targets like:

armv7-unknown-linux-gnueabihf
powerpc-unknown-linux-gnu
powerpc64-unknown-linux-gnu
powerpc64le-unknown-linux-gnu
x86_64-rumprun-netbsd

brson · Apr 8, 2016

Addressed feedback. I mentioned the new binary targets and snuck in a link to the urlo post explaining how to use them w/ multirust.

brson · Apr 8, 2016

@steveklabnik The new targets are probably a highlight.

retep998 · Apr 8, 2016

retep998 reviewed Apr 8, 2016

View changes

retep998 · Apr 8, 2016

RELEASES.md

+* [On Windows `rustc` emits `.lib` files for the `staticlib` library
+  type instead of `.a` files][1.8st]. Additionally, for the MSVC
+  toolchain, `rustc` emits import libraries named `foo.dll.lib`
+  instead of `foo.dll`.


instead of foo.lib.

durka · Apr 8, 2016

durka reviewed Apr 8, 2016

View changes

durka · Apr 8, 2016

RELEASES.md

+  will warn about their usage. In the future, all unstable flags will
+  be unavailable on the stable release channel.
+* [It is no longer possible to `match` on empty enum variants using
+  the `Variant(..)` syntax][1.8w]. This has been a warning since 1.6.


s/1.8w/1.8v

steveklabnik · Apr 8, 2016

Will check this out soon.

apasel422 · Apr 8, 2016

apasel422 reviewed Apr 8, 2016

View changes

apasel422 · Apr 8, 2016

RELEASES.md

+  across platforms was making it difficult to implement `std`
+  correctly. Those that need these definitions should use the `libc`
+  crate. [RFC 1415].
+* The Unix-specific `MetadataExt` traits, including


Seems like there's a missing comma in this sentence, or a disagreement between "exposes" and its subject.

apasel422 · Apr 8, 2016

apasel422 reviewed Apr 8, 2016

View changes

apasel422 · Apr 8, 2016

RELEASES.md

+  be unavailable on the stable release channel.
+* [It is no longer possible to `match` on empty enum variants using
+  the `Variant(..)` syntax][1.8w]. This has been a warning since 1.6.
+* The Unix-specific `MetadataExt` traits, including


Same comma/agreement issue as above.

apasel422 · Apr 8, 2016

apasel422 reviewed Apr 8, 2016

View changes

apasel422 · Apr 8, 2016

RELEASES.md

+  `os::unix::fs::MetadataExt`, which exposes values such as inode
+  numbers [no longer return platform-specific types][1.8r], but
+  instead return widened integers. [RFC 1415].
+* [Modules sourced from the filesystem can not appear within arbitrary


s/can not/cannot/

steveklabnik · Apr 8, 2016

Looks good here! Agree with your summary of important stuff. Once this is r+'d, I'll work on the announcement post.

alexcrichton · Apr 8, 2016

r=me with the fixes mentioned here

brson · Apr 8, 2016

@bors r+ p=1

bors · Apr 8, 2016

📌 Commit 94a387e has been approved by brson

durka · Apr 8, 2016

durka reviewed Apr 8, 2016

View changes

durka · Apr 8, 2016

RELEASES.md

+[1.8h]: https://github.com/rust-lang/rust/pull/31460
+[1.8l]: https://github.com/rust-lang/rust/pull/31668
+[1.8m]: https://github.com/rust-lang/rust/pull/31020
+[1.8m]: https://github.com/rust-lang/rust/pull/31534


duplicate link label, causing wrong target for one of the links

The PR was merged without fixing this, cc @brson

bors · Apr 8, 2016

⌛️ Testing commit 94a387e with merge bf44003...

bors · Apr 8, 2016

matklad · Apr 11, 2016

matklad reviewed Apr 11, 2016

View changes

matklad · Apr 11, 2016

RELEASES.md

+
+* [`cargo init` creates a new Cargo project in the current
+  directory][1.8ci].  It is otherwise like `cargo new`.
+* [Cargo has configuration keys for `-v` and


If I am not mistaken another new subcommand in this release is cargo metadata.

SimonSapin · Apr 11, 2016

SimonSapin reviewed Apr 11, 2016

View changes

SimonSapin · Apr 11, 2016

RELEASES.md

+* [Executable stacks are disabled on Linux and BSD][1.8nx].
+* The Rust Project now publishes binary releases of the standard
+  library for a number of tier-2 targets:
+  `armv7-unknown-linux-gnueabihf`, `powerpc-unknown-linux-gnu`,


@brson What’s the difference between arm and armv7? Or rather, where can I read a more verbose definition of what Rust or LLVM (whichever is relevant here) call various architectures? Thanks.

arm ends up generating armv6 instructions whereas armv7 generates armv7 instructions, but beyond that they should be the same.

Unfortunately I don't know about the actual differences between armv6 and armv7 beyond our generated armv7 binaries are generally faster.

kscz · Apr 12, 2016

kscz reviewed Apr 12, 2016

View changes

kscz · Apr 12, 2016

RELEASES.md

+* [The `--print targets` flag prints a list of supported targets][1.8t].
+* [The `--print cfg` flag prints the `cfg`s defined for the current
+  target][1.8cf].
+* [`rustc` can be built with an new Cargo-based build system, written


No idea if this is the right forum to make a comment, but I think this line should be "can be built with a new" not "an new"

hoodie · Apr 13, 2016

the link under cargo "The environment variables CARGO_TARGET_ROOT, RUSTC, and RUSTDOC take precedence over the build.target-dir, build.rustc, and build.rustdoc configuration values." does not seem to link to where it's supposed to link to

rust-highfive assigned nikomatsakis Apr 7, 2016

brson added the beta-nominated label Apr 7, 2016

brson force-pushed the brson:relnotes branch from 4965160 to f4828f7 Apr 7, 2016

brson force-pushed the brson:relnotes branch from f4828f7 to 1e93079 Apr 8, 2016

brson force-pushed the brson:relnotes branch 2 times, most recently from b9a27f4 to 64c3a27 Apr 8, 2016

alexcrichton added the beta-accepted label Apr 8, 2016

brson force-pushed the brson:relnotes branch from 64c3a27 to 94a387e Apr 8, 2016

Release notes for 1.8

Loading status checks…

94a387e

brson referenced this pull request Apr 8, 2016
Merged
[beta] Release notes for 1.8 #32831

bors merged commit 94a387e into rust-lang:master Apr 8, 2016
2 checks passed

2 checks passed

continuous-integration/travis-ci/pr The Travis CI build passed
Details

homu Test successful
Details

brson removed the beta-nominated label Apr 9, 2016

rust-lang/rust

Join GitHub today

Release notes for 1.8 #32810

Conversation

brson commented Apr 7, 2016

rust-highfive assigned nikomatsakis Apr 7, 2016

brson added the beta-nominated label Apr 7, 2016

This comment has been minimized.

rust-highfive commented Apr 7, 2016

sfackler reviewed Apr 7, 2016 View changes

This comment has been minimized.

brson force-pushed the brson:relnotes branch from 4965160 to f4828f7 Apr 7, 2016

retep998 reviewed Apr 7, 2016 View changes

This comment has been minimized.

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

alexcrichton reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

alexcrichton commented Apr 8, 2016

This comment has been minimized.

japaric commented Apr 8, 2016

This comment has been minimized.

alexcrichton commented Apr 8, 2016

brson force-pushed the brson:relnotes branch from f4828f7 to 1e93079 Apr 8, 2016

This comment has been minimized.

brson commented Apr 8, 2016

This comment has been minimized.

brson commented Apr 8, 2016

brson force-pushed the brson:relnotes branch 2 times, most recently from b9a27f4 to 64c3a27 Apr 8, 2016

retep998 reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

durka reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

steveklabnik commented Apr 8, 2016

apasel422 reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

apasel422 reviewed Apr 8, 2016 View changes

This comment has been minimized.

apasel422 reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

steveklabnik commented Apr 8, 2016

This comment has been minimized.

alexcrichton commented Apr 8, 2016

alexcrichton added the beta-accepted label Apr 8, 2016

brson force-pushed the brson:relnotes branch from 64c3a27 to 94a387e Apr 8, 2016

This comment has been minimized.

brson commented Apr 8, 2016

This comment has been minimized.

bors commented Apr 8, 2016

brson referenced this pull request Apr 8, 2016

durka reviewed Apr 8, 2016 View changes

This comment has been minimized.

This comment has been minimized.

This comment has been minimized.

bors commented Apr 8, 2016

bors added a commit that referenced this pull request Apr 8, 2016

This comment has been minimized.

bors commented Apr 8, 2016

Hide details View details bors merged commit 94a387e into rust-lang:master Apr 8, 2016 2 checks passed

2 checks passed

brson removed the beta-nominated label Apr 9, 2016

matklad reviewed Apr 11, 2016 View changes

This comment has been minimized.

SimonSapin reviewed Apr 11, 2016 View changes

This comment has been minimized.

sfackler reviewed Apr 7, 2016

View changes

brson force-pushed the brson:relnotes branch from `4965160` to `f4828f7` Apr 7, 2016

retep998 reviewed Apr 7, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

alexcrichton reviewed Apr 8, 2016

View changes

brson force-pushed the brson:relnotes branch from `f4828f7` to `1e93079` Apr 8, 2016

brson force-pushed the brson:relnotes branch 2 times, most recently from `b9a27f4` to `64c3a27` Apr 8, 2016

retep998 reviewed Apr 8, 2016

View changes

durka reviewed Apr 8, 2016

View changes

apasel422 reviewed Apr 8, 2016

View changes

apasel422 reviewed Apr 8, 2016

View changes

apasel422 reviewed Apr 8, 2016

View changes

brson force-pushed the brson:relnotes branch from `64c3a27` to `94a387e` Apr 8, 2016

durka reviewed Apr 8, 2016

View changes

bors merged commit `94a387e` into rust-lang:master Apr 8, 2016
2 checks passed

matklad reviewed Apr 11, 2016

View changes

SimonSapin reviewed Apr 11, 2016

View changes

kscz reviewed Apr 12, 2016

View changes