Rust 1.23.0 prerelease testing

alexcrichton · January 2, 2018, 1:48am

Rust 1.23 is released on Thursday (Happy New Year!) and builds are available now for testing. Release artifacts are uploaded to dev (dev-static.rust-lang.org) currently and will be promoted to prod (static.rust-lang.org) this Thursday. The URL is https://dev-static.rust-lang.org/dist/2018-01-02/

You can test rustup with

RUSTUP_DIST_SERVER=https://dev-static.rust-lang.org rustup update stable

Please let us know if you run into any issues! Pending any detected regressions these are likely to be the exact artifacts that we’ll release on Thursday.

You can find the release notes on GitHub as well:

github.com

rust-lang/rust/blob/master/RELEASES.md#version-1230-2018-01-04

Version 1.23.0 (2018-01-04)
==========================

Language
--------
- [Arbitrary `auto` traits are now permitted in trait objects.][45772]
- [rustc now uses subtyping on the left hand side of binary operations.][45435]
  Which should fix some confusing errors in some operations.

Compiler
--------
- [Enabled `TrapUnreachable` in LLVM which should mitigate the impact of
  undefined behaviour.][45920]
- [rustc now suggests renaming import if names clash.][45660]
- [Display errors/warnings correctly when there are zero-width or
  wide characters.][45711]
- [rustc now avoids unnecessary copies of arguments that are
  simple bindings][45380] This should improve memory usage on average by 5-10%.
- [Updated musl used to build musl rustc to 1.1.17][45393]

This file has been truncated. show original

Eh2406 · January 2, 2018, 5:24pm

can we clarify that improve memory usage on average by 5-10%. is of the compilation of programs, not of the resulting binarys.

LuAb4 · January 3, 2018, 7:14pm

Upgraded Android SDK to 27, and NDK to r15c. This drops support for Android 9, the minimum supported version is Android 14.

I guess this drops Android NDK 9 and not Android 9.

kennytm · January 3, 2018, 8:51pm

Yes, it refers to API level 9/14, meaning 2.3/4.0 (gingerbread/ice-cream-sandwich). Android versioning is hard

alexcrichton · March 25, 2019, 8:29am

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Rust 1.23.0 prerelease testing

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